WHAT CAN YOU EXPECT TO SEE IN A DOBSONIAN IN SPRING
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- เผยแพร่เมื่อ 13 พ.ค. 2024
- In this episode I'll show you some objects to look at with your Dobsonian in spring, M 101, the Pinwheel Galaxy, M97, the Owl Nebula, M108, galaxy, Algieba, Double star, and M51, the Whirlpool Galaxy. This is part of the series, Great Targets for a Dobsonian-- Part Four: Spring. Here is the link to the introductory episode:
• WHAT CAN YOU EXPECT TO...
Part Two Summer: • 10 GREAT TARGETS for a...
Part Three Autumn: • GREAT TARGETS for a DO...
Part Four Winter: • GREAT TARGETS FOR A DO... • 10 GREAT TARGETS for a...
I decided to add a part Five that will cover more spring objects that are a little more difficult. The next one might be more like an advanced course.
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Just bought a 10 inch Dobsonian and your channel was the first to pop up after searching what I could see in it. So glad I came across your astronomy content! I've learned a lot about what to expect and how to appreciate the night sky more! Cheers from Canada!
Thank you so much! Cheers to Canada.
awesome video again! Thanks for making me not sleep and look at the sky all night.
Thank you. Ha ha.
Im just staring out navigating the night sky with my 8" Dob. I recently observed m13 and m44. I've got alot more to learn but sometimes i just use my 28mm 82° 2 inch eyepiece and have fun slowly scanning the nights sky. My main discovery since owning my dob is we have too many satellites orbiting earth lol. Great video like always!
Thank you, Steve. One of my first telescopes when I was starting out in astronomy was an 8" Dob. All I had was this little $6 map from Orion that came with the telescope. I had no idea what I was looking for or what it might look like and consequently would often just start doing exactly what you described just scan the sky with a wide field eyepiece. Often I would come across the most amazing objects but had no idea what they were. I agree with you 100% that there are far too many satellites in the sky.
I’m new to owning a dob and have only seen the moon Mars and Jupiter.i live in England so it’s quite rare to have clear skies!it’s the best hobby though with so much to see in the future!
@@Stephen-gp8yi Endless number of things to see in the sky! Cheers.
Those 28mm 82 deg eyepieces are great, better than the 30mm ES82.
About 3-4 years before explore scientific existed, when meade series 5000 UWA was the only source for what later became the ES82, there was another option, the william optics UWAN series, available in 4mm,.7mm.16mm and 28mm. A friend got one, and we were impressed that it performed so close to the 31mm nagler, better than the meade 30mm UWA.
All of my gear including my 31 nagler (which I didn't have way back when my friend got that 28 uwan) was stolen in 2018. I replaced it with a used 28mm orion megaview, which was yet another rebrand of the 28mm uwan.
I have not seen a better 82deg eyepiece other than the nagler in that focal range.
While the 30mm 82 is not quite as good, the 24mm 82s from ES/JOC /meade 5k UWA/celestron axiom LX, the 24mn in that series is exceptional. I had the 23mm celestron axiom LX (same thing, really a 24 but celstron likes 23mm because of their original 23mm axiom). It was actually better at the edges than the 22mm type 4 nagler, but that is the nagler with the weakest edge correction, where the 24mm JOC 82 is one of their best performers.
Enjoy that 28mm. It pairs up well with one of the 20mm XWA/HDC 100deg eyepieces offered by many brands. I believe the same OEM makes both the UWANs and these 100s, in fact the one I own is william optics branded. APM, Lunt and stellarvue also have these.
@tsulasbigadventures are you referring to the orion deep map 600? I loved that thing, it was also my first map 20 years ago. I was able to find many objects by spiraling around the sky in the rough vicinity that that map gets you in. I got another one when when I had to start over from scratch, as well as another pocket sky atlas, though I don't use the jumbo version
Hey Tsula - I'm just getting back into visual so this is another good reminder to get outside. We have Omega Centauri down here which is one of my favorite visual targets.
I saw that you are getting into visual. I'm glad to hear that. I have been to the southern hemisphere but it was so long ago, I can't remember anything about the night sky there. I wish I had paid more attention. Well, one day maybe I will see Omega Centauri and all the other great things to see down there. Cheers.
Great video! I appreciate the sketches, star hopping info, and laser pointing shots. Thanks for sharing such great actual at-the-eyepiece content with those of us under bright skies or clouds!
Thank you. I'm glad you found all the information useful.
Thanks, Tsula! Great info. You'll be thrilled to know I got the dob out of the closet and got it all collimated! Of course, the night I intended to use it the forecast was bonkers wrong and I couldn't take it out -- and we've been clouded out since. Have you been bothered by any of the Canadian wildfire smoke? I hope not. Unfortunately, I guess wildfire season is coming upon us. Ugh.
OH. Well, I have to confess that I was very disappointed when you told me that your Dob was the dreaded closet! So, good for you for getting it out and collimating it. And I hope you leave it out until it clears up. I was not aware of the Canadian wildfire smoke. It rained yesterday and a little bit today. So, that would have kept any smoke away from me. My goodness it's only May and there are already fires? Ugh is right.
Awesome video Tsula!
Thank you!
ahhh, i wish i saw this video sooner! I live in the equator where I can see pretty much both hemispheres... but i had no idea that the Ursa Major had all these galaxies near it... When summer approaches we get a very long period of overcast, about 5 months... so i missed the chance to see the spring constellations, and will have to wait till mid Feb next year.
I have been to the equator to the Galapagos but it was overcast most of the time and I didn't see much of the sky but I saw a lot of wildlife. But that sounds pretty cool to live where you can see both hemispheres.
Ironically one of the best views of m101 I ever had was in a friend's celestron 100ed f9 doublet, from reasonably dark skies (RAS GMARS site, landers ca), with good transparency, dry desert. IiRC it was with 20mm nagler type 5, which has excellent contrast as well. I couldnt quite duplicate it in my televue 101, which I attribute to more glass in the way and an older generation or 2 in coatings technology since that was a 1990's scope vs a mid 2000's scope. Also those synta 100ed f9s are known over performers.
Had I had my c4r f10 achromat that night, I dont doubt that it would have come close with the same eyepiece.
It also looked good in bigger scopes, but the high contrast refractors seemed to have an edge on that low.contrast galaxy. Reflectors without premium high reflectivity coatings, and the spider and secondary in the way does make a difference. Especially whith aperture equalizing dark skies with good transparency. On a worse night the bigger scopes would have won.
The key, approx 2mm exit pulil range is good on that target which is another reason my f5.4 televue lost, i don't think i had an equally performing eyepiece in the 11mm range, and barlowing the 20mm nagler would have added more glass.
Great content as usual, Tsula. Thanks so much for all the effort you put into these videos. I'm going to get a Dob for next winter. I sold my 8 inch a few months ago to buy an mount for astrophotography. I miss it!
Thank you, Kevin. After my refractor was stolen I decided to get another Dobsonian too for when I'm in the Bay Area. I miss having one there too.
Interesting video. With my 4 inch ED FPL51 refractor from a bortle 6 city I see 8-10 magnitude galaxies very very faint like barely visible clouds, usually with a brighter core. The Sombrero galaxy, at magnitude 8.0 is a little easier to see.
That sounds about right. It's hard to see galaxies from a Bortle 6. They will look much much better if you can take your telescope somewhere dark.
Refurbished my Edmund Scientific 4 1/4 reflector from 1968 and had the mirror re-aluminized. Recently retired and hoping to get back into it. I have terrible light pollution but will hope for the best. You have great enthusiasm.
Even in the most light polluted skies, the Moon is always a viable target. And it's view, and what you see on it constantly changes, as it goes through different phases, and lighting angles change. Enjoy your refurbished scope!
Thank you and good luck with your refurbished reflector.
Nice video Tsula. I have no idea how you can observe with your hand on the telescope. I get too many vibrations especially at higher magnification.
I have heard people complain about their Dobs not staying put or sagging but I have never had that problem with my Orion SkyQuest. Wherever I point it, it stay put and not even my hand makes it shake. Now my SCT if you breathe on it it will shake a little bit but not my good ole Dob.
Many, many clouds
I'm sorry. They can't last forever. I'm wishing you clear skies.
Thanks Tsula. You got the Dob? As well, what brand is your red dot finder?
This is the Dob I have had for a few years in MT. I was going to get another Dob for when I am in the Bay Area where I spend half the year. I actually got an Explore Scientific Truss Tube but it was of such poor quality that I returned it. So, I'm still in the market for another Dob. I think I'll just get another Orion as they weigh less than the other brands but they are on back order. So, I'm waiting on them to become available. My red dot finder on that Dob is a cheap Orion but I really prefer the gun sight ones because they are more stable. I think I have one made by Astromania.
@@tsulasbigadventures Great, thanks. 👍🏻
Does the O3 filter help for visual observations to see the galaxies better ?
Unfortunately no. It won't help. The only filter that might help a little bit is a light pollution filter if you are trying to see galaxies in a light polluted area which is very difficult. See my video on filters:
th-cam.com/video/LwD8M4hnjbY/w-d-xo.html
Hi enjoy the show. What could I use for a 10 dobsonian light shroud any ideas ,thank agine wayne.
Thank you. Mine is a solid tube but I have heard that you can make your own shroud out of rip stop nylon like what you make a tent out of. Do you know how to sew?
@@tsulasbigadventures hi tsula yes some what from when I was in army but think I can get a portable one so OK I will look for it thanks Wayne.
@@waynemangum6377 You're welcome and maybe you could get a tailor at a dry cleaner to sew elastic into the ends for you.
You are a big inspiration! And I love your accent it is very calming. I live in the uk and I am having trouble with my dobsonian (a Sky-Watcher heritage 150p) I don’t get along with it well and I’m looking for a replacement in the same price range from first light optics but I am struggling to figure out what to do. Is it really a big deal if I were to move down to a 90mm achromatic?
Thank you! That's a big jump down in aperture. I saw a guy at the star party who had a Skywatcher Heritage 150p and it seemed like a nice telescope to me. But I only looked through it once. He was very happy with it and told me that even though it was goto he liked looking for things on his own. What is wrong with your Skywatcher 150p?
@@tsulasbigadventures the nature of the collapsible tube means I have to collimate it constantly, and my neighbours security lights blow out the view because there is no tube to protect the secondary mirror. The helical focused is alright but less than desirable.
@@confidentstreetlamp1762 I see. I was thinking about getting a truss tube Dob myself to save on weight and was wondering if the truss tube meant constant collimation. I changed my mind and decided to get another solid tube. But can't you get a shroud for the tube to block extraneous light at least? Despite the problems with the 150p, you will definitely see less with a 90mm telescope due to having significantly less light gathering capability. Security lights are so annoying.
@@tsulasbigadventures I’ll look into maybe a 114 tabletop dob or a full size 6” one.
@@confidentstreetlamp1762 I think that's a better idea. There are many 6" Dobs for sale on ebay and Craigslist if you don't mind a used one.
Tsula I live in bortle 8 in west London can you give me an easy target which I could possibly see( not planets) with my 8 inch dob thanks!
You should be able to see M13, the Hercules Cluster in Hercules. Beautiful globular cluster.
@@tsulasbigadventures thanks for replying I will look for m13 if we ever have clear skies in England this year🙏🏻
@@Stephen-gp8yi Oh my goodness. It sounds very challenging to practice astronomy there. How did the Herschels manage to make all those discoveries from Bath?
@@tsulasbigadventures I’m sure seeing conditions were far better back then with no electric street lights only oil lamps and bath was like a big village compared to London.good job I didn’t waste money on a 12 dob as would be no better off in bortle 8 apparently
@@Stephen-gp8yi I'm afraid so. You really have to take a telescope that big to a dark sky site to really appreciate all that big aperture.
You seem so cold. You need a heater.
After going to Fairbanks, Alaska in January when it was -40F the whole week, I can't complain about it being cold ever again.
Ya I was in Baniff when I was young and it was so cold the grease wouldn’t lubricate the chairlift so they had to stop running.
Appreciate the info.
@@DK-df2hi It was probably not a good idea to get on the chairlift in those conditions anyway.
🍷? 🙂
Walter what is that first symbol? Half full glass of wine?
@@tsulasbigadventures You seemed a little tired. Are you still getting over putting together that wonderful aurora photography?
@@waltergold3457 I was so tired after staying up so late and all the excitement of the aurora that the next day I just passed out on the deck in the middle of the day, something I never do. But I'm recovered now. Thanks.
@@tsulasbigadventures Glad to hear it. About a week ago, I had a similar experience. After a little engagement in lower Manhattan, I took a stroll through some of its picturesque neighborhoods, eventually resorting, when I grew tired and wanted a ride home, to the Broadway-Lafayette subway station. In my spent condition, it seemed like a nightmarish realization of Escher's endless stairs. (It's one of the deepest stations in the city, with only one elevator, and the signs giving directions are confusing in the extreme.) But I eventually recovered, and the aurora video was certainly worth your effort, and I liked this one, too.
@@waltergold3457 Thank you, Walter.