M89 - How round is this galaxy? - Deep Sky Videos
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- เผยแพร่เมื่อ 30 มี.ค. 2017
- M89 (or NGC 4552) appears a very "round" galaxy - but looks can be deceiving. Featuring Dr Meghan Gray.
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Video by Brady Haran - วิทยาศาสตร์และเทคโนโลยี
Brady's analogies to food shapes are hilarious
I must have been hungry!
He says what we're all thinking.
He has such an innocent curiosity about things. Always makes me smile because I do too.
Hubble's galaxy classification system is not a tuning fork; it's a wishbone.
A wishbone is more like a V shape than a Y. The stem is quite short. Either way it's just as subjective as the classification system itself.
There is a non-zero chance that there is a parallel universe where the most prominent astronomer in the world is Brady Haran, and therefor all galaxies are classified using some sort of food related terminology.
"Productive" meaning for him increasingly infuriating as he kept finding fuzzy blobs that weren't comets that night 😂
Dr Gray's accent is really beautiful.
It's not the messiest galaxy, but it's one of the Messier ones.
Always nice to see Dr. Meghan again.
This channel is criminally under viewed
Just a wonderful channel. Dr. Grey is such a gifted teacher. I feel so fortunate to listen to Dr. Grey.
I feel cheated, because I'm just now stumbling onto this channel thanks to the whims of the algorithm. At the same time, however, I feel privileged that I have such a backlog to binge! Thank you and your peeps for this content!
Very interesting video, Dr. Brady
I wish these videos were more frequent. They're awesome.
Thank You Brady .
Hyped for the next video ;D.
Always look fotward to your program! Thank you.
so glad I found this channel
I really need to try to find a new line of work... this is awesome.... love it.
HaH!
Just imaged M89 the other night!
Thanks as Always!
Is it a holiday? I see on my youtube a new deep sky video!! wooohooo! i have not seen 2 seconds of it and ill tell you right now I love it. My fave channel of all time. I just got married in Viet-Nam and been here almost 2 months to finish paperwork. You made my evening at least.. Thank you Brady and that astro girl 😚
Good presentation.
I kind of like these videos, probably because astronomy was my first interest, but perhaps because Dr. Gray conveys these things with a bit more substance than most of Brady's people. :)
Wonderful!
Wel-come-back!
More deep sky videos please .
I am looking forward to that next video she mentioned. :)
GerSHAK I didn't realize people were still making Uranus jokes. You must be pretty young and just recently learned of Uranus. Don't worry, it'll stop being funny some time in your teenage years
awesome
Good one
Oh, it makes me so happy to see her using a tablet instead of printing page after page just for one video!
So Brady, Dr. Meg,
I haven't stumbled upon any explanations for barred spirals, of which ours is considered one. How discernible is ours from inside (our view) as compared from outside, face-on? How did astronomers come to believe the milky way is barred? Or has this already been shown, and I just haven't encountered it?
Do we actually know why/how galaxies can have bars? Intuitively I would say that that wouldnt be a favourable state and that the bar should be collapsed into a sphere over time. Or is that what happens and when we see a barred spiral galaxy we're just looking at it too early for the centre to have settled?
Maybe a question for another video?
i love how dr. grey speaks.
Dr. Gray! Woohoo
Dr. Gray iz bae.
Everytime DeepSkyVideos uploads a new one, i go through a little mantra in my head. "Please, let it be Dr. Gray, please let it be Dr. Gray." At least ten times in a row.
Sometimes it totally works! :D
Are you going to make a video about the sagittarius A photos!?
Does a statistical analysis of apparent galaxy shapes show any interesting patterns? Such as one shape being more numerous in a certain part of the universe?
She's the best
Average out all the stars shifts to get a curve from which you can deduce the shape of the hidden dimension ? ;D Luv this stuff.
that's a very interesting galaxy
So is a hug (or handshake) from Brady part of the orientation program when you go this university?
I dunno, but my son wants to apply to Nottingham because of Brady's videos.
I would definitely apply for a chance to be in one room with Dr. Gray. Wait, did i read hug? Oh no, you should not have given me those ideas.... :)
@@silmarianstop him..
@@Triantalex Heh, no worries there, he went somewhere else.
What accent are we hearing? It sounds American but has just a bit of extra rounding on vowels. Also "out" sounds a bit interesting. Is it Canadian?
You guessed right! She's Canadian.
With the new space-based telescopes coming online soon, I wonder if we could actually see the direction of rotation of galaxies.
1:15 Why is the "s" in sBb in lower case?
Couldn't we be looking at just a regular elliptical that's tilted towards us so its major axis appears to be the same size as the minor axis?
As Bradley said, redshift data would give us a better idea as to the object's actual shape.
5:34 looks like a Ralph Steadman galaxy 😄
Brady, you're a cool cat. I'll buy you a pint if you're ever in Boston.
Those poor kids. Mum wheres my playdoh? Mum?
Babybel Galaxy for-the-WIN!
Spherical galaxies are shaped by their strong electric field. Spiral galaxies are shaped by their strong magnetic field. Other regular shaped galaxies are intermediate and are shaped by both their magnetic and electric field. The bulb in the middle of some spiral galaxies is the region where the electric field overpowers the magnetic field wrt shaping the galaxy.
Standard EU stuff that every astronomer should know, but it never gets mentioned in non-electric cosmology groups.
If Messier was using a simple telescope, how was he able to tell the difference between an E0 galaxy and a single star? They're both spherical and uniform
TheAutoban1 Stars don't look like spheres through a telescope. They are so far away that even with very large telescopes, they just look like point sources. Galaxies actually appear much larger in the sky.
Hubble created these classifications, not Messier.
If you see this galaxy in other wavelengths, what would we see?
any tips for veiwing nubale with a small telescope?
HawkDave c I would try aiming it at the thing you are trying to look at. no problem
HawkDave dont expect to see the colours of the nebulae ....they are only visible from the poles!
HawkDave you can see a fuzzy blob through most telescopes. Attach a camera and do a long exposure if you want to see more detail.
The three example galaxies made of play dough were very red-shifted.
5:08 - and an entire alien civilization was just insulted.
Thumbnail looks like facepalm
Canadian should have compared the flat disc to a hockey puck
Where is Dr Gray from? Her accent is really hard to place.
Halifax, Canada
I like James Grime
Jesus christ, brady! How many more channels will you have to make before it satiates your hunger?!? D:
i thought all galaxies are disk shape
desperate for m87!
Can we name the new planet Urecktum or nah?
3 people disliked the video because the were hungry!
that's a babybell cheese...
Babybel cheese...
OMNOMNOMNOM
*LAST COMMENT*
Not anynore
2nd comment
IIMatokzII congratulations.
3rd comment
Last comment.
i dont think so
I find such matters as galaxy classification of interest, largely, but that said, I can't imagine a more boring way of explaining it. On the Dull Scale, I rate this video around 4/10. I realize that, at a glance, 4/10 doesn't sound too dull, sounds like maybe 40 % dull. Wrong. Any, and I repeat, ANY percentage of dullness is a bad thing where internet videos are concerned. For me to rate it as I have means that although the subject itself had merit, and it was addressed (however blandly), I was so bored I didn't finish the video, and in fact not even a half of it. Thank you.
Greg Gauvreau ...I rate this comment a 2/10 for boredness.
".... I can't imagine a more boring way of explaining it. ..."
That's a statement about you, not about the content of the video.
12th. First comment
Harshit Khandelwal you need a new hobby