Thanks - I figured there are some folks who are interested, but don't know how to get started and may be afraid to ask. This way they can get the basics of the terminology, where and how to look, and then ask better questions. I'm hoping that astronomy clubs may find these useful to put on their websites too, as it should help beginners get basic astronomy questions answered so newcomers will feel better informed.
Thanks for disappointing me. I came here expected this to be yet another boring and confusing TH-cam video. I was disappointed. This is well presented, you speak very clearly, and the information is useful and coherent. Admittedly, I already knew almost everything you said having been an astronomy buff since the 70's, but it was definitely a wonderful review of the basics. Keep up the great work!
@@peakart8850 uh...nooo..... Seems you have misunderstood what I wrote. What was I expecting? Did I get what I was expecting? Or did I get something I was not expecting and thus was "disappointed"?
@@jimmo42 Well, you write positive feedback to the kind TH-camr, but yet you say you are disappointed. I just may not be hearing you right, but if you were expecting a bad video and was surprised to see it was well presented and that the man spoke clearly, then the correct word would be, “impressed.”
And the definition of the word, “disappointed” is that you were expecting more of somebody or something, but did not receive that level of expectation.
Thanks dude, I'm trying. Started stargazing as a kind of therepeutic thing with some binoculars. I do struggle to orient myself, sometimes I can easily spot constellations when I'm lying down, then I move around and look up and it takes me ages to get my bearings again. This should help with that. It's really cool though, feels like I'm reconnecting with my ancient ancestors and the universe again, we are all stardust after all. It feels great to learn the constellations, once you can see them properly it's like your painting the night sky with your imagination.
You're welcome! Remember, the zenith is different depending on your latitude (and not the same as the celestial north pole); it is the point directly over your head, no matter where you are on Earth. So nadir is directly down through the ground, wherever you are, and won't point at south pole unless you're at north pole. Altitude is degrees above your own horizon; azimuth is the direction "around" that horizon. Download free program Stellarium; bottom tabs have most of these listed.
Thank you Jim. What I was thinking was astronomy clubs might want to put them on their websites, to help people get oriented in the night sky, so they feel more educated if/when they show up to outreach events or meetings. But I also use them to supplement my own live presentations at libraries and park districts, because I cover the same concepts each time. This way people can review them at their leisure on my website or on TH-cam too.
What a great video! Thank you for posting and keeping it simple! I am 51 years old and received a telescope for Christmas and trying to learn the basics before I attempt to use it!!
Excellent! I liked how you explained everything clearly. I'm interested in this subject but I was often fooled by fake, not-so-clear, clickbait videos. Finally found your channel & hopefully watch more videos from your channel. Added to a playlist: Astronomy, cosmos, universe. Thanks again from Great Britain. (Mon 11 Oct 2021 12h10)
What an amazing video and explaining the basics in such a calm way. I did watch it a couple of times to make sure I understand all the references. I'll surely be coming back here again.
Hi Charles - thanks for the thoughts. I guess I look at this way: In the story of the tortoise and the hare, the tortoise won. Maybe comparing myself to a tortoise isn't the greatest one to make, but the point is this: Over time, the views will go up. That's what matters. I'm not worried. :-)
Wow thanks for that! I couldn’t put into words what I was thinking to explain to someone what I was trying to understand. And the simple words of “getting oriented with the night sky” sounds so basic but is powerful thanks! 🙏🏽 🎉 🌎
Thanks for this. I'm taking an Astronomy class next semester, and this helped me wrap my head around the concept of the celestial poles. I never knew stars rotated in the sky though, I always assumed they just went from East to West like the Sun. Interesting stuff!
You're welcome. Remember, the stars don't actually rotate; it's Earth rotating that makes the stars appear to rotate over our heads. And they do go from east to west - it's jut the ones closer to the poles go in a circle. Well, they ALL go in a circle, because the Earth rotates! Make sense? :-)
Im 15 and my love for astronomy i had as a child is starting to grow again. Ive been looking for information about the planets and the night sky for a week now , have installed an app to help me too. I'll buy a telescope in a few months when im completely ready!
David, I am just getting into astronomy and found your videos. They are truly awesome, thank you for all the obvious hard work you put into them. Watching the sponsor's ads in full in the videos, thanks.
Really enjoyed this video. Informative, straight to the point and with a friendly disposition, and fine graphics to supplement the info given. Grade A quality. Thanks!
Posted eight years ago and still replying to comments, what a chad. My town uses the wrong lights so there's lots of light pollution. Terrible shame because the night sky is so beautiful, still helpful for what I can see. Thanks!
Maybe one day we can get everyone to turn off the lights together, and the world will see the wondrous cosmos that is usually hidden from their view. Ah well, probably not - but I can dream! Cheers and clear skies.
David, David, David! Thank you! Now that was the best explanation and presentation I have seen on this subject. For a little over a year I've been heavily into astronomy, reading a lot and even trying to make sense of this Coursera (Duke U.) Into Astronomy Course, and you really nailed that for me. Thank you!!!
Thanks for educating and getting me really started on star gazing...this is very nice n clear explanation. u deserve full marks. you can load more videos on this topic & astronomy in general
Thanks. This explains whole lot for me. As in Contact . Jodie Foster was talking about right ascension and declination :) I had no ide what she was talking about :) Ty
This is great ! I studied physics some years ago but never had a chance to get into Astronomy. Now I'm hiking in the wilderness more and wanted to appreciate the night sky better. Question: Can I use the position of Polaris, to determine magnetic declination for normal daytime compass use ? Seems like one could do that.
thanks so much! i have my astronomy gcse tomorrow afternoon and i really didn't understand declination and right ascension until i watched this! many thanks from the UK :D
I just had an epiphany! Did you feel it? Excellent series. Until I found you, I would point my scope at something (the moon) and focus. It's a learning process but my goodness, your explanation makes it seem like I am a real astronomer. My friends think I am a half a bubble closer to being the cool buddy. Tonight I got a big surprise for all the mosquitos! Nobody told me about that part in the telescope store... 8-) I got eaten alive last night! A friend said turn on a fan, I hope it works.
Couldn't be explained any clearer. Crisp and clean without assuming anything about the viewer which is a rarity!. Thank you for taking the time to make these. .
That is one of the nicest compliments I have ever received. Thank you so much; I work really hard to explain things clearly without talking down to viewers.
Hello Hello Happy Holidays! Thank you so much, wishing you the same. We hope this season ends on a joyful note and continues into a safe and prosperous New Year for you and your Family.
I am a little bit confused at 1:05. I've tried marking it out on paper then raising it over my head but it didn't make any sense. i thin that N,S,E and W are all inverted but I don't know. could you please explain David, it would be highly appreciated.
Download the current sky map here www.skymaps.com/downloads.html It has E and W inverted too, for good reason. Held over your head, with N and S in the correct orientation, E and W are then correct. They are wrong when looking down at the ground. But that's not a map of the ground (down), it's a map of the sky (up).
Enjoyed your explanations on telescopes. I did bump into a little serious Astronomy, after I created DIY Barlow Lens for a Dime, took some moon shots, now I am trying to observe crescent Venus with this...there is a bit of aberration issues. I should be able to resolve it I am sue. Do find my moon shot with my own DIY telescope and J6 plus mobile. Loved your channel, continue inspiring the world..........myself an architect, musician....!!!
Hi David, your videos have been extremely useful in my pursuit of astronomy with my daughter. About 3 years ago I purchased Meade LX-200 10" (Schmidt-Cassegrain) with an AutoStar Upgrade and GPS. Also, I have an Equatorial Mount. My biggest issues (still today) is aligning my telescope. While I can find Polaris I'm never certain if the Stars I'm aligning to are the correct Stars. Hopefully, I've solved this problem is an iPhone App called StarChart. It would be a lot easier if I had a local club, but unfortunately thats not possible.
Andrew Beau set your mounts latitude to your latitude, level the telescope as best you can, and aim generally as close to north as you can eyeball it. That's good enough for visual observing. I have some videos on aligning and aiming equatorial mounts; check my channel. Not ideal for a fork mounted scope, but still might help.
Total lunar eclipse tomorror or later today depending on your time zone. Mars should also be visible near the full moon. The eclipse is less than 24 hours away. Posted at 23:34PM GMT BST 26th July 2018. The Eclipse starts Friday 27th July 2018 at about 21:21PM (Please check the real time to be sure). Full moon is at 21:20PM GMT BST.
Can you please explain how the northstar can be fixed in the same spot? and how come all the star constellations are the same and moving in the same pattern since the beginning of the earth as we know it? Shouldn't we see new stars all the time since we are speeding around in the universe after a moving sun? Or are the star constellations we see moving around the earth? While the earth is moving around it self and at the same time around the sun that is at the same time moving through space? I would really like to get a intellectual answer on this and also on what real scientific proofs we have of this?
The ecliptic has confused me David. You say lower in the summer and higher in the winter. Yet the sun is higher in the summer which follows the ecliptic - I can't work out my error. Great videos btw - they are of great interest and help
+Paul Stankevitch Common question, and a good one. Take a moment to think about Earth's orientation though. It's tilted 23.4 degrees. So in summer, your tipped towards the Sun in summer on the "day" side of Earth. But think about what you said, "the sun is higher." That's in daytime. On the "night side" you're still tilted towards the Sun; that places the ecliptic lower on the NIGHT side. And for winter, all of that is reversed. Take a globe with a light source and note your location on the globe in day/night scenarios and you'll see how that works.
Oh yes of course (revelation hits me in the face like a frying pan!) - if the summer ecliptic has more of it's length visible in the day time, there's less of it to view at night - hence closer to the horizon! David, you're a great teacher/instructor - I may yet ascend from novice to amateur :)
Sion Cable Mate, the earth is as round as a ball can be.. How anyone could believe different in the face of a myriad of evidence that proves the fact that the earth is round(amongst other objects and aspects of this universe), is beyond belief!
Sion Cable So you come to an astronomy page, who's owner and his followers not only observe the other round planets, moon and sun in our solar system, but also all use right ascension and declination to track said celestial objects while the earth rotates, supporting the fact (yes, fact) that the earth is round and not stationary. And your plan is to try to convince to us that the earth is flat? Not a great plan bro beans.
During the day. BUT... the ecliptic at night is opposite. Think about where you are on Earth when it is dark, so the Sun is low during the day in winter, yes, but then the ecliptic is high overhead at NIGHT in the same season. Opposite for summer. Because you're tipped the other direction from day to night.
being familiar with globe ( earth ) including longitude and latitude having basic idea of earth rotation and earth"s path around the sun and moons rotation around the earth I picked up on what you described as CELESTIAL SPHERE and the idea of ZENITH and fundamental movement in sky of stars and planets ( same as sun- E to W ) good basic lesson my next step is to understand declination and ascent later
You mean how the sky view of E and W appear reversed looking up at the sky compared to what you'd see looking at a map from a viewing-down perspective?
@@Cat_in_Spacetime it is confusing at first. Just helps to think of it as a map over your head rather than one you're looking at on the ground. Then the directions make sense.
Hi David, your videos are amazing, they're helping me a lot for my astronomy class. One thing though, you said that the ecliptic is higher in the sky during winter and lower during summer... did you say that because you were in the south pole? I'm kind of confused.
Good night! before everything I want to say this is a really nice work, I started reading about the sky and watching it just a week ago. I have one question, do you have a video about how to get the best of my first pair of binoculars? Just ordered 10x50 binoculars and I really want to get the best of them. Thank you beforehand!
I don't understand 4:07. How can right ascension and declination both run from the celestial pole to the equator if right ascension moves along the equator?
What I mean is, ascension runs along the equator on one of your images and then it runs perpendicular on the equator when you go to the starry sky image. Were these mixed up?
@@yuridanylko think of right ascension as being like longitude and declination like latitude. The difference is that RA and Dec are projected onto the sky instead of being on earth. Does that help?
🎉Hi, KIAORA!! I'm a Maori woman from the beautiful land of Aotearoa NZ. I've been a stargazer most my life, I love it all SPACE, THE COSMOS our Solar system etc..I come from a line of Highly spiritual people with great gifts for healing also for reading the stars as with 1 of my IWI tribe believes our people descended from the stars...My gift is seeing many patterns forming in the sky, which started at night but now I can include daytime too...I'm puzzled by it all as I'm not able to interpret these visions..I was told to draw what I see which is impossible for me atm .theres too much n none of it makes sense to me....😮😢🤨..ANY IDEAS.??
¿Any idea how to locate the first aries point from any place you are on earth? Is for the purpose of practicing. Maybe some DIY clinometer gadget, that help me to locate where is the vernal point, and after that, finding a star by it´s declination and AR? Or maybe a simpler method? By the way, i like your tutorials, they are very good!
No, it's okay. I kind of trailed off a bit when I said it, so it isn't as forcefully stated as it perhaps should be. But it's a good question to ask, and besides, now you know!
Great question; it's because you're thinking in terms of a map, which we humans look at from a "top down / birds-eye" view. But the sky is up. So imagine this instead: If you could take your computer monitor or screen, and hold it up over your head, with north behind you, and south in front of you, the E/W relationship becomes clear, as they are now on the "correct" sides. It's when you look "down" for a sky that is actually up that cause the confusion. Make sense?
Johan Vanwinkel you're welcome. That's an easy one to look at and wonder what the heck is going on until you orient things overhead for the sky, then it makes sense.
Eyes on the Sky No, it's not making sense. If I hold the screen above me, what am I looking at and where is my point of view looking? Is there a good graphic url I can look at?
Paul C Hi Paul - download the latest all sky star chart from skymaps.com, print that out, then face south. Hold the chart in front of you. Then lean your head back, and bring the chart up over your head, so north will be behind you/"up" on the map, and south still towards your front / at the bottom of the map. East and west will then be correct. But if you turn around with the map held below you (like a terrestrial map) and north at the top/south at bottom, looking down at it (not over your head), east/west will appear reversed on the star chart compared to actual directions. That's because the star chart if for overhead, not viewed from a 'birds eye" perspective. Print that chart, try that, then let me know if you still don't understand. :-)
You're thinking of a map of the ground, where west would be left if north is at the top and east is right. But this is a map of the SKY. So east and west are actually opposite of a ground map when you're looking at them with north at top. But lay down on the ground with north above your head and south at your feet. Where are east and west then? East is LEFT and west will be RIGHT. Because the sky is overhead, not a birdseye view like a ground map. I hope that helps explain it.
1:54 It does not really make sense that the Ecliptic line would be lower in the summer and higher in the winter.. Or does it? Isn't summer the consequence of the sun beeing higher in the sky thus warming us up more in the summer months?
Think about it this way: The Sun is higher in the summer daytime because that side of Earth is tilted towards the Sun. So what happens when it is nighttime? The Earth is still tilted towards the Sun... so the ecliptic appears lower then. Vice versa for winter... make sense?
Thanks - I figured there are some folks who are interested, but don't know how to get started and may be afraid to ask. This way they can get the basics of the terminology, where and how to look, and then ask better questions. I'm hoping that astronomy clubs may find these useful to put on their websites too, as it should help beginners get basic astronomy questions answered so newcomers will feel better informed.
Thanks for disappointing me. I came here expected this to be yet another boring and confusing TH-cam video. I was disappointed. This is well presented, you speak very clearly, and the information is useful and coherent. Admittedly, I already knew almost everything you said having been an astronomy buff since the 70's, but it was definitely a wonderful review of the basics. Keep up the great work!
Uhh, I believe the word you’re looking for is, “impressed...” You were saying, “disappointing” as if you were saying the video was bad, not good.
@@peakart8850 uh...nooo.....
Seems you have misunderstood what I wrote. What was I expecting? Did I get what I was expecting? Or did I get something I was not expecting and thus was "disappointed"?
@@jimmo42 Well, you write positive feedback to the kind TH-camr, but yet you say you are disappointed. I just may not be hearing you right, but if you were expecting a bad video and was surprised to see it was well presented and that the man spoke clearly, then the correct word would be, “impressed.”
And the definition of the word, “disappointed” is that you were expecting more of somebody or something, but did not receive that level of expectation.
@@peakart8850 Google "sarcasm and intelligence". That might explain the problem you have understanding.
Thanks dude, I'm trying. Started stargazing as a kind of therepeutic thing with some binoculars. I do struggle to orient myself, sometimes I can easily spot constellations when I'm lying down, then I move around and look up and it takes me ages to get my bearings again. This should help with that. It's really cool though, feels like I'm reconnecting with my ancient ancestors and the universe again, we are all stardust after all. It feels great to learn the constellations, once you can see them properly it's like your painting the night sky with your imagination.
You're welcome! Remember, the zenith is different depending on your latitude (and not the same as the celestial north pole); it is the point directly over your head, no matter where you are on Earth. So nadir is directly down through the ground, wherever you are, and won't point at south pole unless you're at north pole. Altitude is degrees above your own horizon; azimuth is the direction "around" that horizon. Download free program Stellarium; bottom tabs have most of these listed.
Excellent video, thank you. A true astronomer! Wearing a comfortable black hoodie while presenting an instructional video to thousands of viewers.
You're welcome! It's better to be laid back, the way I see it. :)
This guy: no one lives at the North Pole.
Santa: Am I a joke to you?
Lol exactly. You are a joke
loool goddamit #santarights
That's a good point, where do flat earthers think Santa lives? More evidence they will dodge.
lmao
the war on Christmas!
After listening to this guy....I'm getting spaced out ~
Yeaaaaaaa
Nice one
Thank you Jim. What I was thinking was astronomy clubs might want to put them on their websites, to help people get oriented in the night sky, so they feel more educated if/when they show up to outreach events or meetings. But I also use them to supplement my own live presentations at libraries and park districts, because I cover the same concepts each time. This way people can review them at their leisure on my website or on TH-cam too.
You're welcome, and I'm glad that things "clicked" for you! :-)
What a great video! Thank you for posting and keeping it simple! I am 51 years old and received a telescope for Christmas and trying to learn the basics before I attempt to use it!!
Excellent! I liked how you explained everything clearly. I'm interested in this subject but I was often fooled by fake, not-so-clear, clickbait videos. Finally found your channel & hopefully watch more videos from your channel. Added to a playlist: Astronomy, cosmos, universe. Thanks again from Great Britain.
(Mon 11 Oct 2021 12h10)
What an amazing video and explaining the basics in such a calm way. I did watch it a couple of times to make sure I understand all the references. I'll surely be coming back here again.
Hi Charles - thanks for the thoughts. I guess I look at this way: In the story of the tortoise and the hare, the tortoise won. Maybe comparing myself to a tortoise isn't the greatest one to make, but the point is this: Over time, the views will go up. That's what matters. I'm not worried. :-)
Went from my 11PM to the 15PM in natural. Love it. Awesome bit of kit.
Wow thanks for that! I couldn’t put into words what I was thinking to explain to someone what I was trying to understand. And the simple words of “getting oriented with the night sky” sounds so basic but is powerful thanks! 🙏🏽 🎉 🌎
Thanks for this. I'm taking an Astronomy class next semester, and this helped me wrap my head around the concept of the celestial poles. I never knew stars rotated in the sky though, I always assumed they just went from East to West like the Sun. Interesting stuff!
You're welcome. Remember, the stars don't actually rotate; it's Earth rotating that makes the stars appear to rotate over our heads. And they do go from east to west - it's jut the ones closer to the poles go in a circle. Well, they ALL go in a circle, because the Earth rotates! Make sense? :-)
I'm sort of late to the party, but I just wanted to take a moment to thank you folks at eyes on the sky for all the helpful information!
Nicely explained subject with very good graphics.
Im 15 and my love for astronomy i had as a child is starting to grow again. Ive been looking for information about the planets and the night sky for a week now , have installed an app to help me too. I'll buy a telescope in a few months when im completely ready!
Do you still love it? Cause now I'm 16 and I can relate to you
I just discovered your videos, and I find them truly educational. Thank you for preparing this content to teach to us. I'll keep studying.
Thank you for your kind and generous compliments.
Awesome videos...Highly appreciate your efforts in making these...
David,
I am just getting into astronomy and found your videos. They are truly awesome, thank you for all the obvious hard work you put into them. Watching the sponsor's ads in full in the videos, thanks.
Xsheaffer thank you so much for the kind and generous compliment!
First time here! I am an amateur astronomer and excited about learning stargazing and using my telescope.
I like that he used stellarium !
Really enjoyed this video. Informative, straight to the point and with a friendly disposition, and fine graphics to supplement the info given. Grade A quality. Thanks!
Posted eight years ago and still replying to comments, what a chad. My town uses the wrong lights so there's lots of light pollution. Terrible shame because the night sky is so beautiful, still helpful for what I can see. Thanks!
Maybe one day we can get everyone to turn off the lights together, and the world will see the wondrous cosmos that is usually hidden from their view. Ah well, probably not - but I can dream!
Cheers and clear skies.
Awesome videos bud. Keep them coming learning something new with each video. Thanks again.
Boom this is exactly what I was looking for, thanks!
David, David, David! Thank you! Now that was the best explanation and presentation I have seen on this subject. For a little over a year I've been heavily into astronomy, reading a lot and even trying to make sense of this Coursera (Duke U.) Into Astronomy Course, and you really nailed that for me. Thank you!!!
You're welcome John - glad I was able to help!
I love your videos. So well at explaining things precisely and clearly. Thanks :)
Superb information video Dear ❤️... Thank you for sharing 🙏❤️
Thanks for educating and getting me really started on star gazing...this is very nice n clear explanation. u deserve full marks. you can load more videos on this topic & astronomy in general
So um, I had done an astronomy crash course about 5 years back. Wanted to get back into star gazing.
Thanks for making this video. It is truly amazing
You're welcome - thank you for the kind comment!
Always refreshing to see videos like these from you.
Yes I am in North Central Kansas about 28 miles from the Nebraska line and I'd like to know what's that Taurus will be positioned tonight please
Absolutely fantastic video. Exactly what I was looking for
Thanks. This explains whole lot for me. As in Contact . Jodie Foster was talking about right ascension and declination :) I had no ide what she was talking about :) Ty
Just watched basics 1 through 3, I've had a Eureka moment, thanks, really enjoyed (and understood) the vids.
I can't find Basic 2 or 3. Please help!
Great video sir, my daughter and I watch this 3 videos 3 times each.
Hey man thanks for these videos. they are really helping me figure out this RA and declination. I appreciate it.
This is great ! I studied physics some years ago but never had a chance to get into Astronomy. Now I'm hiking in the wilderness more and wanted to appreciate the night sky better.
Question: Can I use the position of Polaris, to determine magnetic declination for normal daytime compass use ? Seems like one could do that.
thanks so much! i have my astronomy gcse tomorrow afternoon and i really didn't understand declination and right ascension until i watched this! many thanks from the UK :D
I just got a telescope today and spotted your videos.
You Da Man!
You Da Man!
Will use you every time for instructions and help.
I just had an epiphany! Did you feel it? Excellent series. Until I found you, I would point my scope at something (the moon) and focus. It's a learning process but my goodness, your explanation makes it seem like I am a real astronomer. My friends think I am a half a bubble closer to being the cool buddy. Tonight I got a big surprise for all the mosquitos! Nobody told me about that part in the telescope store... 8-) I got eaten alive last night! A friend said turn on a fan, I hope it works.
Couldn't be explained any clearer. Crisp and clean without assuming anything about the viewer which is a rarity!. Thank you for taking the time to make these. .
That is one of the nicest compliments I have ever received. Thank you so much; I work really hard to explain things clearly without talking down to viewers.
Thxs for your videos, I am a novice and just purchased my 1st telescope and I am clueless , but your videos are of grt help
Iv always loved space since i was a kid, its one of my main interests and i want to learn the constellations and how to star gaze thank you!
Hello Hello Happy Holidays! Thank you so much, wishing you the same. We hope this season ends on a joyful note and continues into a safe and prosperous New Year for you and your Family.
Thank you Sakura! Happy holidays to you as well.
I am a little bit confused at 1:05. I've tried marking it out on paper then raising it over my head but it didn't make any sense. i thin that N,S,E and W are all inverted but I don't know. could you please explain David, it would be highly appreciated.
Download the current sky map here
www.skymaps.com/downloads.html
It has E and W inverted too, for good reason. Held over your head, with N and S in the correct orientation, E and W are then correct. They are wrong when looking down at the ground. But that's not a map of the ground (down), it's a map of the sky (up).
Thank you very much David. Highly appreciated. Also, your videos are outstandingly good, keep it up!
Very interesting. I have Star Chart for iPad, and have always knwon a BIT about Right Ascension and Declination, but now I understand it more.
Enjoyed your explanations on telescopes. I did bump into a little serious Astronomy, after I created DIY Barlow Lens for a Dime, took some moon shots, now I am trying to observe crescent Venus with this...there is a bit of aberration issues. I should be able to resolve it I am sue. Do find my moon shot with my own DIY telescope and J6 plus mobile. Loved your channel, continue inspiring the world..........myself an architect, musician....!!!
Helpful, informative and useful.😊
Nice and simple. Now I can buy an Accurist Celestial watch, and begin by understanding the lines!
Great help! I'm going through an old stargazing book and its nice to have a little video to supplement
Glad it was helpful!
Hi David, your videos have been extremely useful in my pursuit of astronomy with my daughter. About 3 years ago I purchased Meade LX-200 10" (Schmidt-Cassegrain) with an AutoStar Upgrade and GPS. Also, I have an Equatorial Mount. My biggest issues (still today) is aligning my telescope. While I can find Polaris I'm never certain if the Stars I'm aligning to are the correct Stars. Hopefully, I've solved this problem is an iPhone App called StarChart. It would be a lot easier if I had a local club, but unfortunately thats not possible.
Andrew Beau set your mounts latitude to your latitude, level the telescope as best you can, and aim generally as close to north as you can eyeball it. That's good enough for visual observing. I have some videos on aligning and aiming equatorial mounts; check my channel. Not ideal for a fork mounted scope, but still might help.
All you explain is korrekt and we use it in this way.
fantastic! I teach Astronomy and your videos are great to prep and share.
Thank you so much! I think others who teach astronomy refer to them too, which is both amazing and humbling.
I gotta apply practice thanks for this David.
oh wow, i can't believe I missed the "night sky part" .. i understand it now. thank you sooooo much!!.. more power to you!!!
Total lunar eclipse tomorror or later today depending on your time zone. Mars should also be visible near the full moon. The eclipse is less than 24 hours away.
Posted at 23:34PM GMT BST 26th July 2018.
The Eclipse starts Friday 27th July 2018 at about 21:21PM (Please check the real time to be sure). Full moon is at 21:20PM GMT BST.
👍Your videos are very helpful and easy to understand. Thank you!
LovingAtlanta that's very kind of you to say, thank you!
This is a great video.. Thanks
'Thankyou" for knowledge and video.
This series of videos is awesome, thank you! Starting from here.
Says the guy with a Illuminati pyramid as his pic
You’re a explainer. Thank you 😊
Great video, thanks! Noticed that E and W are swapped in your visual that explains the zenith, ecliptic etc.?
Can you please explain how the northstar can be fixed in the same spot? and how come all the star constellations are the same and moving in the same pattern since the beginning of the earth as we know it? Shouldn't we see new stars all the time since we are speeding around in the universe after a moving sun? Or are the star constellations we see moving around the earth? While the earth is moving around it self and at the same time around the sun that is at the same time moving through space? I would really like to get a intellectual answer on this and also on what real scientific proofs we have of this?
SO clearly explained! Thank you!
Excellent video, learning this stuff just for fun and taught a lot.
The ecliptic has confused me David. You say lower in the summer and higher in the winter. Yet the sun is higher in the summer which follows the ecliptic - I can't work out my error.
Great videos btw - they are of great interest and help
+Paul Stankevitch Common question, and a good one. Take a moment to think about Earth's orientation though. It's tilted 23.4 degrees. So in summer, your tipped towards the Sun in summer on the "day" side of Earth. But think about what you said, "the sun is higher." That's in daytime. On the "night side" you're still tilted towards the Sun; that places the ecliptic lower on the NIGHT side. And for winter, all of that is reversed. Take a globe with a light source and note your location on the globe in day/night scenarios and you'll see how that works.
Oh yes of course (revelation hits me in the face like a frying pan!) - if the summer ecliptic has more of it's length visible in the day time, there's less of it to view at night - hence closer to the horizon! David, you're a great teacher/instructor - I may yet ascend from novice to amateur :)
Fuck off Sion
Sion Cable
Mate, the earth is as round as a ball can be.. How anyone could believe different in the face of a myriad of evidence that proves the fact that the earth is round(amongst other objects and aspects of this universe), is beyond belief!
Sion Cable So you come to an astronomy page, who's owner and his followers not only observe the other round planets, moon and sun in our solar system, but also all use right ascension and declination to track said celestial objects while the earth rotates, supporting the fact (yes, fact) that the earth is round and not stationary. And your plan is to try to convince to us that the earth is flat? Not a great plan bro beans.
Wouldn't the sun be lower in the sky during the winter and higher in the summer? I think it was said the other way around in the video.
During the day. BUT... the ecliptic at night is opposite. Think about where you are on Earth when it is dark, so the Sun is low during the day in winter, yes, but then the ecliptic is high overhead at NIGHT in the same season. Opposite for summer. Because you're tipped the other direction from day to night.
Hi sir any different in latitude when we measure it on sea and same on earth from north star
The intro music is very good where i get the full version?
Greate work,like it.
Good video
being familiar with globe ( earth ) including longitude and latitude having basic idea of earth rotation and earth"s path around the sun and moons rotation around the earth I picked up on what you described as CELESTIAL SPHERE and the idea of ZENITH and fundamental movement in sky of stars and planets ( same as sun- E to W ) good basic lesson my next step is to understand declination and ascent later
GREAT 👍
Loving the content
Super video❤️👍
Great Video
Correct me if I'm wrong
But how is this possible 4:50
N N
E W or W E
S S
Which is correct?
You mean how the sky view of E and W appear reversed looking up at the sky compared to what you'd see looking at a map from a viewing-down perspective?
@@Eyesonthesky Yeah, doubt cleared, Thanks 👍
@@Cat_in_Spacetime it is confusing at first. Just helps to think of it as a map over your head rather than one you're looking at on the ground. Then the directions make sense.
Hi David, your videos are amazing, they're helping me a lot for my astronomy class. One thing though, you said that the ecliptic is higher in the sky during winter and lower during summer... did you say that because you were in the south pole? I'm kind of confused.
Good idea to outline the basics for beginners.
Good night! before everything I want to say this is a really nice work, I started reading about the sky and watching it just a week ago. I have one question, do you have a video about how to get the best of my first pair of binoculars? Just ordered 10x50 binoculars and I really want to get the best of them. Thank you beforehand!
I don't understand 4:07. How can right ascension and declination both run from the celestial pole to the equator if right ascension moves along the equator?
What I mean is, ascension runs along the equator on one of your images and then it runs perpendicular on the equator when you go to the starry sky image. Were these mixed up?
@@yuridanylko think of right ascension as being like longitude and declination like latitude. The difference is that RA and Dec are projected onto the sky instead of being on earth. Does that help?
@@Eyesonthesky So the first image was wrong and right ascension goes from the pole to the equator straight down?
1:53.... am I missing something or did you say the ecliptic is 'lower in the sky during summer and higher during the winter" ? Isn't it the opposite ?
OK never mind...already challenged and you are right ...IN THE NIGHT SKY....Interesting....I never saw that coming.
🎉Hi, KIAORA!! I'm a Maori woman from the beautiful land of Aotearoa NZ. I've been a stargazer most my life, I love it all SPACE, THE COSMOS our Solar system etc..I come from a line of Highly spiritual people with great gifts for healing also for reading the stars as with 1 of my IWI tribe believes our people descended from the stars...My gift is seeing many patterns forming in the sky, which started at night but now I can include daytime too...I'm puzzled by it all as I'm not able to interpret these visions..I was told to draw what I see which is impossible for me atm .theres too much n none of it makes sense to me....😮😢🤨..ANY IDEAS.??
Just wondering if this information is suitable for Australia (southern hemisphere)?
They use the same grid systems, but see things differently. Many things are reversed from what folks in the NH see.
Great work duder, this is really helpful.
Thank you!
¿Any idea how to locate the first aries point from any place you are on earth? Is for the purpose of practicing. Maybe some DIY clinometer gadget, that help me to locate where is the vernal point, and after that, finding a star by it´s declination and AR?
Or maybe a simpler method? By the way, i like your tutorials, they are very good!
Awesome video man
No, it's okay. I kind of trailed off a bit when I said it, so it isn't as forcefully stated as it perhaps should be. But it's a good question to ask, and besides, now you know!
Ok. how come east is now on the left and west on the right? Day time looking North, East on my right and West on my left. WTF????
Great question; it's because you're thinking in terms of a map, which we humans look at from a "top down / birds-eye" view. But the sky is up. So imagine this instead: If you could take your computer monitor or screen, and hold it up over your head, with north behind you, and south in front of you, the E/W relationship becomes clear, as they are now on the "correct" sides. It's when you look "down" for a sky that is actually up that cause the confusion. Make sense?
thank you, now i know
Johan Vanwinkel you're welcome. That's an easy one to look at and wonder what the heck is going on until you orient things overhead for the sky, then it makes sense.
Eyes on the Sky No, it's not making sense. If I hold the screen above me, what am I looking at and where is my point of view looking? Is there a good graphic url I can look at?
Paul C Hi Paul - download the latest all sky star chart from skymaps.com, print that out, then face south. Hold the chart in front of you. Then lean your head back, and bring the chart up over your head, so north will be behind you/"up" on the map, and south still towards your front / at the bottom of the map. East and west will then be correct. But if you turn around with the map held below you (like a terrestrial map) and north at the top/south at bottom, looking down at it (not over your head), east/west will appear reversed on the star chart compared to actual directions. That's because the star chart if for overhead, not viewed from a 'birds eye" perspective. Print that chart, try that, then let me know if you still don't understand. :-)
1:33 the east and west direction are placed opposite... In the place of east U have kept west and vice versa
You're thinking of a map of the ground, where west would be left if north is at the top and east is right.
But this is a map of the SKY. So east and west are actually opposite of a ground map when you're looking at them with north at top.
But lay down on the ground with north above your head and south at your feet.
Where are east and west then?
East is LEFT and west will be RIGHT.
Because the sky is overhead, not a birdseye view like a ground map.
I hope that helps explain it.
I had never thought about that. Kind of embarrassing considering my age!@@Eyesonthesky
@@rebanelson607 no, it shouldn't be embarrassing. It's not something most people stop to think about.
Thank you David ! .nice videos !
Someone said “he lost me a pizza.” And that’s hilarious to me I don’t know why 😂
1:54 It does not really make sense that the Ecliptic line would be lower in the summer and higher in the winter.. Or does it? Isn't summer the consequence of the sun beeing higher in the sky thus warming us up more in the summer months?
Think about it this way: The Sun is higher in the summer daytime because that side of Earth is tilted towards the Sun. So what happens when it is nighttime? The Earth is still tilted towards the Sun... so the ecliptic appears lower then. Vice versa for winter... make sense?
@@Eyesonthesky Yes, thank you! That do make sense :)
@@Eyesonthesky And by the way. The moon is flat! :)
Great! This is amazing! Thanks so much!
U great teacher🤟🏽
Watching from Bangladesh 🥰