The most bizarre galaxy we can see is a KILLER - Centaurus A
ฝัง
- เผยแพร่เมื่อ 16 พ.ค. 2024
- Is this the best astrophotograph I've ever taken? I think it might be.. let's look at this one a bit deeper and see what the science says!
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Note - distances shown at 9:57 should be in MLY and Cen A is 11MLY (pretty close!)
BRILLIANT SPONSORSHIP! Congrats, Dylan! You're officially an educational TH-camr.
Haha legit
Please Dyllan. More of these deep dives. This is the true essence of observing to know the object better not just image it
Thanks ! I will!
Dylan this is the best type of Astro video. Informative about the object as much as a breakdown of the photo and not too long not too short. One might say a "Goldie Locks" video. Just the right amount of everything.
Hey thanks Chris ! These ones take a bit longer because I spent a whole night reading and researching but even that was pretty fun!
Are you feeling okay, Dylan? It seems as if somebody is forcing you to post every 12 hours. 😂
Beer fund is running out...
If I’m in trouble I will blink twice in my next video …
Never mind . Just let him go ! Great Video !!
@@DylanODonnell Use a 'blink comparator' twice!
Great video. I really enjoy learning about objects, especially in the southern hemisphere where I can’t see. My greatest joy in astronomy is learning from images and the experience of gathering data under the night sky. Post processing is drudgery for me.
I took a photo of this galaxy while taking photos of Jupiter last year. I discarded a majority of the photos because I thought it was dust bunny on my lens. I was shocked to learn it was a galaxy. Great educational video, thanks.
This is what I call a real outreach astronomy video, this is real the real goal of astrophotography: to reveal the nature of what we’re seeing. Cheers, Dylan. Loved this!
Thanks Ricky!
Fantastic job Dylan, your deep dive gave us the background, data, research and your hypothesis. Being a retired Environmental Scientist, now Amateur Astronomer, I love researching each item I photograph; I probably spend more time researching and hypothesizing than post-processing my images. Keep up the awesome work, and yes definitely more deep dives!
Thank you Steve! Means a lot!
Loving the recent upload schedule! This type of astrophotography video is one of the best - not just displaying your image, but really diving into the object's info to explain what we can see. It's really interesting, hope to see more like this
As an astrophotographer and astrophysics student, i absolutely love these deep dives. More astrophotographers should really do this sort of content rather than just copying wikipedia's blurbs
Heh I’ve been guilty of that too .. wiki a good reference for the surface level info on popular targets (and useless for many exotic targets) but the knowledge pool is so much deeper !
This is a great type of video. Please make more of this kind.
Loved the deep dive. More like this please!
Thanks I’ll try !
Obsie door looks like a submarine hatch but wobbles like jello
Hehe .. ideally it never opens.
@@DylanODonnell on the sub or obsie? ;) Ty for your videos
This is a beauty of an image. This target is on my list for when I can get more south (transits here at 23 degrees). Thanks for this. The backstory on this galaxy was really fun. I like the format!
Great video, great image. Really interesting info given here. Centaurus A is such an interesting and rewarding galaxy to image, slowly revealing it's secrets the longer you image it.
Thanks Dylan, I’d been gathering about 25 hours of 3 min subs on this target and watching your interesting and extensive clip inspired me to process my OSC image.
I just love the Ha in your image and this has to be one of my favorite targets as a relatively new amateur Astrophotographer. Soooo much going on!
Cheers Simon
Thanks Simon!
Love this style of content Dylan! Sometimes I think we pay too much attention to the image itself, and forget to actually research the target.
More please!
Thanks !
more like dylan is on fire with all these uploads hell yeahh
Hehe
Thanks Dylan, great video.
Thanks Dennis!
Great video! Thanks for the deep dive.
Thanks !
Like the deep dive, like the science behind the images.
This was my first true galaxy that I imaged from South Africa other than LMC/SMC as I began to feel despondent that the exciting stuff was only in the Northern Hemisphere. Without a goto mount for my meagre 5 inch Schmidt Cassegrain, it took forever to find it by star hopping and doing starfield lookups online. Even when I was spot on, I couldn’t see anything without doing a long exposure and then it just blew me away. Nothing like yours of course but your description has added so much more intrigue to my image!
That’s wild! I used to star hop .. I’m so grateful for platesolving gotos now :)
I remember first seeing Centaurus A 35 years ago in a 14 inch Dobsonian you could just see the dark lane across the middle now it's easy to photograph. We are blessed down here in the Southern hemisphere to have such a cool galaxy to see. Also blessed to get so many videos from you recently.
Cheers Ross! You were up early :)
I have given up trying to understand, I just love your videos. humour, detail, info, with the occasional deep dive into Uranus
Thanks John :)
Great episode Dylan. The best for a while, for me anyway. I really enjoyed you taking me on a deeper journey about an object I look at all the time. Really nice for the focus to be on the astronomy. Nice one!
Fascinating information you dug up. I loved it!! Thanks for that!
Very informative, Dylan. One of my favourite objects and a great image. Thank you.
Thanks !
This is my favorite kind of Astro video. So well done. Thank you, Dylan.
Brilliant video, great explanations which gives us a much greater understanding of what we are all looking for... cheers
Amazing image and so many videos in short while. Dr Dylan the space scientist goes to work and always cool to learn someting new. Clear skies and cheers mate.
Thanks so much fot this info - I was able to take a great image of Cent A last month from the Karoo - so much detail, as you say.
Thats Incredible❤.I Really Enjoy When Someone Gives A Background On Their Target,As My Love For Astronomy Was There Wayyy Before I Ever Knew What Astro Was,Awesome Video,Thank You,And Clear Skies❤️🔭✨
OMG this was soooo good ! We are envious of your skills . Cheers .
As always, great video!
Superb astro-sleuthing deep dive. Sagan, DeGrass, and O’Donnell.
Heh thx man I try !
Fascinating explanation of the picture.
Spectacular shot!
Also great video, Dylan! Has others have mentioned, this format is very interesting please keep doing it.
Thanks !
Very informative Dylan, I really enjoyed this video.
It never occured to me, that Centaurus A despite it's relatively small apparent size has such low red shift. I had to look it up bc I wondered how you managed to get such good h-alpha. My first thought was that you must have chosen a not too narrow filter. Centaurus A could be a good target for very deep OIII integrations. One of the hypothesis for the M31 OIII arc is that it could be an early sign of a galaxy merger. Great content. You are really pushing the envelope lately regarding quantity and quality of your videos. Cheers!
Thx Ben! Would be interesting to see what the oiii is doing!
Lust for impractically large SCT rig (re)intensifies.
Great stuff Dylan!
hehe thanks man
Excellent video Dylan, very enjoyable.
Take a look at ESO270-17 Forcade Figeroa Shred. It is the remnant of the spiral galaxy that interacted with Centaurus A. I have visually observed 5 globular clusters in the galaxy with my 20 and 25" dob. Also impressed by seeing the effect of the jets interacting with the remnant dust in your image, I will try the galaxy myself with the Ha filter.
Great work Dylan, wouldnt it be great to see it from another angle. Its still a bizarre object
Nice one. Make more of these in depth stuff. It suits you. 🎉
I've just learned more about this Galaxy today with you than in all the 25 years combined that I've been doing astronomy! Jesus, Dylan, you're threatening to make me smarter! I won't stand for it!
Hehe thanks Brian !
MORE like this !
I'm often questioned about this hobby.
What's the point?
Just capturing a galaxy, and explaining, looking back 30 million years is so kool.
Yah I can watch polished academic stuff. To have a guy with a backyard telescope explain this, well 😊
Thanks Mike :)
I've always been curious about this interesting galaxy, thanks for sharing your findings! It's rarely visible from where I am located, and it's in the south which is flooded with light pollution from the City about 45 miles from here. Because of this, I've avoided taking images. Maybe with a CLS or UHC filter I might have some luck.
Very interesting mate I really need to up my game & get more data but in the UK that's not easy lol, keep em coming clear skies!!
Wish I could image this from home, its a bit too low here in SE Louisiana. Hopefully I can catch it on a trip one day. Clear skies all :)
I like this increase in releases. so glad brillant okayed this fast heh.
loved this video, if you are trying this new format with more info I vote yeah.
Thx! I changed up my workflow so it’s a bit sloppier editing but I’d rather do more fast when I have the chance !
As usual Dylan, when you dig deep into a subject you always give the best of yourself… kudos for this one mate…
Thx .. enjoyed researching this one !
Nice work mate, as a coincidence i uploaded a live view video of the galaxy using 5 minutes of video using the 24" inch Dobsonian (F2.55 with Nexus CC) last week.
Now i (we) have a far better understanding of what i am looking at. When the new aps-c camera gets here i will spend a fair bit of time lucky imaging this one. Its a great target 👌
Damo
Fantastic !
Excellent video and amazing image.
Do post a blink with the hubble data, would love to see the difference, great shot none the less
🤤 another tasty treat to add to my go-south astro vacation. Don't think I can wait until 2027 for your total eclipse so looks like I'm going to need two visits.
But wow, that thing is soooo cool. Thanks for this great intro to it 🙂
Beautiful image and great video. Thanks. You folks in the southern hemisphere are so lucky.
Thanks Jude!
Cool stuff right there
Say what!? Another Star Stuff video! At this rate you should rename your channel the Star Stuff Series!
All kidding inside, once again a very engaging, very entertaining, and most importantly, very informative episode / lesson.
👍
Thanks ! I was worried this one dropped way too soon after the one earlier today 😆
You're been on fire with content lately.
Hah thx !
Hey Dylan! Great shot & video.
Thanks !
You're a great teacher, please keep it up, Worth every minute
Thanks !
Hell yeah, another deep dive!
That was a great video. I love shooting this galaxy. Have you checked out Rolf’s version of the image that shows all the shells? That was the image that got me into shooting this target.
Yeh Rofls is the GOAT!
Wonderful video! Will make it a point to look deeper into my images. btw it's early morning here and don't want to wake the family so watched this with headphones on. Just about launched my coffee at the door breach. hehe Well done! On a separate note.. Folks, just say 'No' to crack.
Heheh FBI open up !!
Nice video. I agree that this is one of your best. Very sciency. Great job!
Cheers! 🌶️
These are the best videos.
11:30 ... I feel that the odds of two galaxies colliding in the vastness of space is astronomical....bada bing 🥁🥁
And yet .. considering how many galaxies there are in space .. the odds are skewed to highly probable :)
@@DylanODonnell ... Albeit a large number of galaxies but in an infinite amount of space. The odds are decreasing by the second as the universe expands. At some point in the future the expansion will have overtaken the light and nothing will be visible in the night sky anymore. That'll be bad for telescope sales. 😁
Your "puny 11 inches" just made my 9.25" shrivel up. Amazing image! Perhaps your best video. Certainly among my top favorites. Keep doing more deep dives. This was awesome!
Love the science behind the pretty pictures. Hopefully, I can get my c8 collimated soon😵💫 after taking a year off I feel like bumbling idiot messing around in the dark
I know the feeling !
Speaking of relativistic time dilation, after every image I take that include distant (possibly tens or hundreds of million light years away) I'm always blown away thinking that the photons from those distant galaxies took millions and millions of years to get to us here on Earth (from our time perspective) but from the photons' perspective they literally travelled across the entire vast expanse of space in no time at all.
It’s true !
Nice one. I watched your video, then started reading Astronomy Magazine and guess what I saw on page 55; another nice picture of NGC 5128 by Charles Pevsner...
Cool synchronicity :)
Very interesting.
Currently working on this with the SeeStar.... Partly cause I've been sick and haven't been able to set the big rig up... and partly 'cause it is the "ultra stack challenge" for the month, so hopefully, by the end of the month, there will be dozens of hours submitted by multiple users to stack.
b.t.w, Im sure you've seen Rolfs 130hour image of this, but on the odd chance you havent... Its well worth checking out.
Yeh it’s a beauty! Easier to see the shells in his version!
Fascinating! I loved it. I've been dropping NGC 5128 from my observing list quite a few time, as I thought it seemed to advanced for me, but decided to give it a try. I've had two sessions, where the first one was underexposed (120s@120gain ASI294/C9.25), but the second session was better (240s@120gain). It's such a weird, sorry peculiar, galaxy, so it was fascinating to watch this video and zip around on my own image at the same time. I even caught "god's mistake" :-)
Ahh that’s a great thing! I’m glad it helped!
Science + Fun = Dylan
Te he :)
Centaurus A galaxy is so low on my southern horizon it's not possible to get decent data on it from here.(Houston Texas) I have photographed Omega Centauri from near here but it too is so low and the subs look overly yellow through all the atmosphere. Still, quite beautiful! You blokes have the best globular clusters in the sky. Such as Omega Centaurus and 47 Tucanae. M 13 is riding high here in the North during the early morning. Plenty of globular clusters but you have the best ones down under.
Yeh it’s super low for you guys.. basically overhead here !
@@DylanODonnell Yeah you have a special place there in your country. I've always had a special place in my heart for Australia. I would love to meet some of the native people and go see where Robert Evans logged all those supernovae. The LMC, SMC, and Carina nebula are spectacular! People always cite M 31 as our closest galactic neighbor but it's really the Magelanic clouds, and I'd love to zoom in on those two with my astrograph. It's only 1000 mm but I'll bet it would blow my mind. I'll be you've got some great ones with your edge HD of the LMC? Hey that rhymed! Kind of. 🤪 Clear skies and cold brew, brew.
@@DylanODonnell It's sad that I totally screwed up my shots of the eclipse but I understand it happens on my birthday in Africa in several years. I wonder if the path of totality will run through Namibia? I've heard a lot of good things about Namibian skies and Africa in general, as dark skies go.
Wow, very nice picture!
Thanks Amrit !
12:25 Scared the living daylights out of me. Don't listen to Star Stuff on airpods pro!! ... ok a few minutes later, after my heartrate normalized, I have to say the video was fasinating, and the photo is fantastic. Amazing that an Edge 11" can get such deep resolution.
Hahah!
I enjoyed that.
A killer?! *clutches pearls*
See, us visual folks don’t have these problems. We just look at it, but DON’T look at it.
Cool stuff bro.
Haha!
I love that you use real images to illustrate your point, and I'm assuming they're all your own. Too many people use computer generated nebulosity and frankly, it looks like s**t! Like the terrible space scene's on Star Trek Discovery. Though I'm a big Star Trek fan. Strange New Worlds is my favorite. Better nebulosity, although still unrealistic. They must have narrow band filters built into their cameras on Enterprise.🤪
Thanks for noticing ! Yeh the m83 and nebula example are mine .. I try to draw from my own library when it makes sense :)
Hey Dylan, thanks for a great upload. Your image is truly amazing. I'm experimenting with imaging galaxise with my C11 so I have a few questions if you could help me out plse. Were you imaging at F10, or F7, or?? I'm asking because I note the pixel size of your camera is 3.76um which would have you massively over sampled at F10 or 7. So did you use binning? I'm just starting out really. I use a DSLR with my C11 at F10. My camera is a Canon 5D with a pixel size of around 6.4. Cheers for any answers you can give.
Good question .. I'm oversampled .. almost perfectly 2x oversampled at F7. So in theory .. I *should* bin and get perfect sampling. And I could do that. And maybe I will. But what I'm doing now is counterintuitive. I'm dithering, drizzling and so end up with a colossal sized image (like 11,000 pixels wide or something). Then when I'm ready for any major processing I downscale to the size I want.. usually 2048px or 4096px wide. This keeps the maximum amount of information in the image until the point I downscale to the perfect sample.
Oh yeah I poke my head all up in my images. I like it as deep as I can get it. I just finished the Needle Galaxy and there are quasars in there. One was 8.811 billion light years away. It was in my image. Pixinsight will find those globular clusters with plate solving. I saw a video on setiastro's channel and you can import other databases for the plate solve script and annotate globulars near other galaxies. Mine didn't show any around the Needle Galaxy, or it identified them but I didn't see any in my data.
Yeh I couldn’t find a glob database that had the cent a globs. The whole region is full of quasars though which are the MQs labeled in the annotation :)
Do you plan on watching The Blaze Star. T CrB (T Coronae Borealis) on Stellarium? It will be visible from your location from around 8 pm. To 5 am. Pretty much all night. If I read Stellarium correctly. I'm going to try to watch it as much as possible from here near Houston Texas. It is straight up almost on top of Zenith after the sunset here. Clear skies!
My house is in the way most of the night !
Nitpicky correction: At 9:57 you forgot to attach the millions of light years to it :)
Sadly, or luckily, Cen A isn’t Alpha Centauri levels of close
Yep you’re right!
I’m curious what continuum subtraction would do to show the ha only. When you subtract the red from the ha in a way the isolated the Ha.
True.. I should try that.
fuck dude, I love these videos that you put out, so informative. I have over 36 hours on NGC5128 with an edgehd8 and when I was looking into finding info on it to share I could not find the depth you have. Thanks heaps mate
Hey thanks my dude .. glad it was interesting to others!
Hello Dylan 😁!!
Hi Rend :)
"That's not my mistake, that's God's mistake". Just pure gold, every time 🙂 Mate, thank you for being on youtube. Not only do we get the wisdom of you being you, the wit of you being you but sometimes, we might even learn something. And if that's not a win for the universe, I don't know what is.
mid. lol
Hehe amazingly that little quip drew rebuttals lol.
Interesting.
❤ this murder mystery!!
Thx James!
But can you see uranus of cent.A. 🤔
Looks great. Why so much longer on the Hydrogen than G and B? How do you decide that?
I’m sure you could calculate the signal loss in HA and the multiply it on the sub length but honestly it was arbitrary. I usually do 10m in HA but wanted more nebulosity this year so doubled it.
Isn't dark matter the glue that holds everything together? It's mass is considerably greater than the mass of a black hole at the center of any galaxy.
You’re absolutely right .. and also the mass itself of the material in the galaxy and the globs .. not just the black hole.
I think that the focus around 13:40 is trying to tell you something about your cable management in the background...😅
Don’t judge me 😂
What does the sky look like to some one on the relativistic solar systems??
I'm like what's a EHD? Lol
I just noticed that you put plumber butt in your opening montage. 👨🔧
He’s finally sponsored by someone other than high point
Haha it happens sometimes !
I tried imaging Cen A last night after getting my scope configured with the new Moonlite focuser.... except now my iOptron GEM45 has taken a dump and has started showing some abysmally large DEC backlash which results in PHD2 overcorrecting and causing error spikes in both axes. sigh...
Oh that sounds painful :( try running through the PhD2 setup wizard in case it’s a software issue unless you know the dev isn’t moving properly.
Not entirely sure I solved it last night, but I adjusted the worm gear meshing as tight as I could get it... PHD2 is still saying 3200ms+ DEC backlash, but guiding seems to have settled down a bit better after messing with the ResistSwitch and backlash compensation settings
You're wrong about none of that being in the visual spectrum :) you can pull out a lot of thar data withmore intergration time. Not the brown parts but the jets and emissions from the black hole yes
Interesting :)