M53- Which way is up in space?

M53- Which way is up in space? - Deep Sky Videos

Рет қаралды 133,992

12 жыл бұрын

We use M53 as bit of an excuse for an up/down north/south space debate. More Messier Objects: bit.ly/MessierObjects
Dr Meghan Gray works at the University of Nottingham.
Deep Sky Videos website: www.deepskyvideos.com/
Twitter: #!/DeepSkyVideos
Facebook: / deepskyvideos
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Videos by Brady Haran
Brady's other channels include:
/ periodicvideos (Chemistry stuff)
/ sixtysymbols (Physics and astronomy)
/ numberphile (Numbers and maths)
/ nottinghamscience (Science and behind the scenes)
/ foodskey (Food science)
/ backstagescience (Big science facilities)
/ favscientist (Favourite scientists)
/ bibledex (Academic look at the Bible)
/ wordsoftheworld (Modern language and culture)

Пікірлер: 322

@soberhippie 5 жыл бұрын

This one, more than any other one, reminded me to remember that we're standing on a planet that's evolving and revolving at nine hundred miles an hour...

@MrsAlexisAgnew2019 2 жыл бұрын

That's orbiting at nineteen miles a second, so it's reckoned, a sun that is the source of all our power.

@robertmayfield8746 3 ай бұрын

That explains why I feel dizzy all the time.

@skinnyjohnsen 12 жыл бұрын

Dr Meghan Gray is showing true scientific humility! I love her and these videos. Thanks Brady ;-)

@KronicLov3 12 жыл бұрын

I always love hearing Gray talk about sciency type things with her soft voice. just makes learning that much better.

@nithintg10 Жыл бұрын

10 years

@0rderofTheWhiteLotus 8 жыл бұрын

It would have been great to include a diagram visualising these different allignments with respect to the different scales of view. Tad bit confusing using only hands and an infinitely distracted imagination.

@ervillewright4115 5 жыл бұрын

I agree. It is a little confusing.

@DeepSkyVideos 12 жыл бұрын

you're welcome again - thank you for watching and commenting

@ArtypNk 12 жыл бұрын

I like her voice. It's really soothing, my spine does that tingly thing when she talks.

@kevinhanley3023 3 жыл бұрын

Great work to both. The smile of being slightly emabarrassed is a genuine and beautiful smile.

@TeslaRifle 12 жыл бұрын

That was very interesting, I didn't know our solar system was tilted on its own axis with respect to the galaxy. Thanks Brady and Dr. Gray!

@MindLessWiz 12 жыл бұрын

Thank you! That was very informative for me, and as always, a pleasure to witness Dr. Gray and listen to her sharp explanations.

@VictorAndScience 12 жыл бұрын

Brady with all your channels, the filming and editing. Do you even get to sleep?! Anyhow, thanks for all the efforts, your work is amazingly brilliant!

@woodyeckerslyke 9 жыл бұрын

Late getting to this Messier series but I really like the way they've found different things to say about the objects which could be kind of dull and repetitive. Related: It's a real skill asking good questions and Brady does it as well as pretty much anyone I've ever seen.

@Kizron_Kizronson 7 жыл бұрын

Yeah, although I am secretly hoping that one of the final globular cluster videos just has the presenter mention that the object is a globular cluster, then fall asleep mid sentence. Or maybe say that he is going to talk about something more interesting and produce a brick to describe.

@reelbigf90 12 жыл бұрын

Great video! I am a Financial student but am subscribed to a few of your video's and find them very interesting. Thanks to all the professors who take time out of their days to make these videos, and thank you Brady!

@Vlasko60 4 жыл бұрын

I love nice people that know stuff. Thanks for the lesson.

@aluisious 12 жыл бұрын

If you were blindfolded and led into a house, and stood somewhere you could see about 2/3 of the stuff in the house, you could come up with a pretty good idea of what the house looked like. Especially if you could see a lot of nearby houses to compare it with.

@mehulbhatt7850 3 жыл бұрын

Wow! I didn't know that solar system plane is at 60 degrees of galactic plane! Knowledge is endless in astronomy / space / astrophysics!

@acs197 12 жыл бұрын

Your videos are fantastic! Thank you, Brady!!

@cristianfcao 12 жыл бұрын

Nice approach to this video, Brady: To use an M object to learn something more fundamental about astronomy. IIRC there are over 50 clusters (globular & open) in the Messier Catalogue and most of them are not among the most fascinating things in the universe; however, there's plenty to learn about astronomy. For my part, I didn't know about north and south in space, so thanks!

@muckerwood 8 жыл бұрын

5:36 Bigfoot!?

@TehKhronicler 8 жыл бұрын

+muckerwood We finally found him!

@Malfunct1onM1ke 7 жыл бұрын

Nah, keep in mind that this is filmed in the UK, so it's probably just students on their way to the pub ;)

@abcdef-cf2uk 6 жыл бұрын

muckerwood Had to be. How else would you expkain that bipedal creature?

@ZeedijkMike 6 жыл бұрын

Watched this video 6 years ago. But it's still as enjoyable today as then. An extra thumbs up if I could.

@SharpAssKnittingNeedles Жыл бұрын

This has got to be the GOAT Dr Gray vid! Not only is she putting the geometry of how our little bit of the galaxy spins in perspective, Brady is giving her that huge aussie attitude for being on bottom, er, south 😂 perfection 🤌

@sjcwoor 12 жыл бұрын

I'm really really glad that I asked that question in the other video. It makes perfect sense to me now. Thank You So Much :)

@youzerr5041 Жыл бұрын

Love how the universe isn’t perfect but it is so freaking incredible and amazing!

@imakepizzas 12 жыл бұрын

This was really interesting and is excellent information, thank you

@JaredAFoley 12 жыл бұрын

Thanks as always Brady! I would love to hear more about the distribution of the Messier objects; how is M53 so far off the galactic plane, is it still considered part of our galaxy?

@gollum453 7 жыл бұрын

Loving this series keep it going :)

@DivingDeveloper 12 жыл бұрын

Brilliant! Keep going, these videos are awesome!

@DeepSkyVideos 12 жыл бұрын

glad to hear that!

@jimmyshrimbe9361 5 жыл бұрын

Awesome explanation!! Thanks!

@TheRostbart 9 жыл бұрын

I never would have thought that the ecliptic is tilted that much to the galactic plane 60° woa... *speechless*

@Eddie42023 5 жыл бұрын

It's actually closer to 65.

@pyrodoll2422 5 жыл бұрын

TheRostbart I didn't know either but did wonder absent mindedly why the Milky Way crosses our British skies the way it does. If we weren't tilted only the equatorial regions would get a decent view.

@Vlasko60 4 жыл бұрын

Another amazing fact I didn't know.

@imager8763 4 жыл бұрын

Her explanation are wonderful!

@DeepSkyVideos 12 жыл бұрын

I do... because it's quite small I didn't put it on the list... but there are few more of them coming soon!

@mjgayle52 6 жыл бұрын

another great video - thank you!

@redkb 12 жыл бұрын

Thanks again for these great videos!

@piercealec1971 2 жыл бұрын

i know im asking randomly but does anyone know a trick to log back into an Instagram account? I stupidly lost my password. I would appreciate any help you can offer me.

@renedominic2627 2 жыл бұрын

@Pierce Alec instablaster =)

@piercealec1971 2 жыл бұрын

@Rene Dominic i really appreciate your reply. I got to the site through google and I'm trying it out atm. Looks like it's gonna take a while so I will get back to you later with my results.

@piercealec1971 2 жыл бұрын

@Rene Dominic It did the trick and I now got access to my account again. Im so happy! Thanks so much you really help me out :D

@renedominic2627 2 жыл бұрын

@Pierce Alec You are welcome :D

@DeepSkyVideos 12 жыл бұрын

thanks... they're fun to make.

@MountainFisher 2 жыл бұрын

I have the Cambridge Star Atlas and it explains much of this with great illustrations. I am a rooky astronomer and tools like this video are very helpful .

@manfredpseudowengorz 2 жыл бұрын

it's like two weeks to a 10th anniversary of this vid publishing, which sounds like a proper time to ask about the man walkin' by at 5:37

@joaoandrebernardino 8 жыл бұрын

I know this is an old video... and my knowledge about these things it's close to 0.... but I found interesting that earth and the solar system rotate counterclockwise , and the galaxy rotates clockwise... Is there a a "universe" predisposition for these movements? And If so, doesn't it mean that we are actually rotating "upside down" to the galaxy? :p thanks

@janosk8392 4 жыл бұрын

Old is another relative term that is mind boggling in the context of light years measurement.

@beaconblaster33 2 жыл бұрын

what do you mean? earth and the solar system rotate clockwise, north and south doesn't exist.

@kks319 2 жыл бұрын

2022 time flies

@b2theran 3 жыл бұрын

Great video. I'm now more confused than I've ever been. Appreciate it

@iaov 5 жыл бұрын

Thanks. Great vid.

@johannes914 12 жыл бұрын

I learned something... Again. Thank you !

@StaticBlaster 2 жыл бұрын

5:05 That answers my question. Thanks so much! 👍👍

@DeepSkyVideos 12 жыл бұрын

well, glad you enjoyed it anyway... cheers for the comment

@jasonmardoniomeza1711 3 жыл бұрын

My brain just exploded! 😨

@ArthurSavage 12 жыл бұрын

I liked this video a lot. As someone ignorant in Astronomy it was very informative. A minor suggestion as you add other content to the Messier object videos would be to still talk about the object itself a bit more than this video. Maybe show more pictures or talk about how this globular cluster is different from other Messier globular clusters etc. Keep up with the interesting videos!

@pbezunartea 12 жыл бұрын

interesting... thanks for posting!

@michaelsheffield6852 8 жыл бұрын

These are great.

@MZZenyl 12 жыл бұрын

Oh yeah, read a little about that somewhere. Thanks for answering! :D

@DeepSkyVideos 12 жыл бұрын

See a list of other channels Brady works on in the video description...

@kaylorkeltner3173 5 жыл бұрын

You had me at "uncharted backwater"

@BenRK90 10 жыл бұрын

8 minute long video basically saying "because we decided that this shall be up."

@iNuchalHead 5 жыл бұрын

I like how Dr. Gray sneaks in Douglas Adams references.

@g3cwi_Radio_Adventures 2 жыл бұрын

Really interesting. I had not considered many of these facts.

@NomadUniverse 6 жыл бұрын

I don't know why, and I'm not pretending or claiming t o be a genius, but this all seemed pretty self ex-planet-ory.

@StaticBlaster 2 жыл бұрын

lol

@gencofilmco 12 жыл бұрын

Enjoyed this. Thanks. One production note - you might consider chilling on the constant zooms and adjustments even when the speaker is just talking to camera. Tends to distract. Of course just my opinion.

@JBenedetti1978 12 жыл бұрын

I love Dr. Gray!!

@SDPstudio 12 жыл бұрын

Mind Blown!

@lamegoldfish6736 3 жыл бұрын

Definitions are fun! 😃

@stefanschneider3681 Жыл бұрын

It's just so much fun to watch you two discuss these complicated matters! But I agree with other comments: Dr Gray was short of one hand to show all three axis (earth, solar system, galaxy) and a little drawing would have been helpful. Because now I am still wondering: What's the earth's axis in respect to the galaxy? If you add up "about 60°" and 23.5°, you might get close to 90° and all the "up or down"-discussion starts again 🤣!

@balajisingh2992 7 жыл бұрын

Thanks a lot

@kanjitard 12 жыл бұрын

She is very good at explaining stuff.

@blackblizzard3216 3 жыл бұрын

from what i know up is any direction going against the gravitational force and down is the same direction as the gravitational force. thats why i think there is no up and down in space, unless we choose a plain (our galaxy) to orient up and down

@stefanschneider3681 Жыл бұрын

I guess that's what they tried to explain, but you shortened it to one sentence, well done 😅👍

@leougeo 5 жыл бұрын

You are are amazing

@Subparanon 12 жыл бұрын

I don't think we have mapped the orbits of our local group. Stars do move, but very slowly. It would take thousands of years for it to be visible to the naked eye. I remember reading once that the spiral arms of the galaxy are actually compression waves that move like ripples on a pond, where the galaxy is compressed it triggers new star formation there by making it brighter, and making it appear to be an arm of stars.

@sorrysonofa 12 жыл бұрын

I would love to know this!

@RealDealHolyfield2099 10 жыл бұрын

I'm well aware of various coordinate systems for mapping earth using GIS (Geographic Information System) software. These different projections take into account that the earth isn't exactly a sphere. Is there anything equivalent in the galactic coordinate system? Any kind of aberrations in shape? Very interesting video!

@yyjpyy 12 жыл бұрын

When we use cardinal points in space, we don't map it like a flat map as we do on Earth. Instead, we project a sphere outwards in space, with us in the center. If follows, as you sure realise, that the third dimension is simply the distance from the Earth. In light-years, parsecs or whatever...

@MzShaybutta 2 жыл бұрын

Up at 3am thinking, and decided to Google...Is there a sense of direction in space? Lol. I love the internet.

@Subparanon 12 жыл бұрын

Gravity and rotation. What happens to a ball of pizza dough when you toss it up in the air spinning? Centrifugal force pulls on the ends, flattening it out into a disc. The farther away from the center, the faster you are moving just like the edge of a record moves faster than the center. The faster you move, the greater the centrifugal pull. The galaxy bulks up quite a bit towards the center and is less flat because it's rotation is not as fast because it's closer to the center.

@prigual2901 2 жыл бұрын

Great information, thanks. So 250 MY ago was some time ago, when..our S System completed last orbit it on the galaxy..?

@mrtwister9002 6 жыл бұрын

I always get creeped out when I really think about how everything is. Frightening at times. I think too much.

@klausolekristiansen2960 6 жыл бұрын

4:55 How do you define clockwise? It depends on which direction you are looking at the galaxy from.

@DeadUnicornClub 12 жыл бұрын

If the side view of the galaxy shows north, south, east and west what does the face view show? How do we determine direction on that plane?

@p3falien233 9 жыл бұрын

Nothing wrong with being down.....you even call it down under where you come from right ?

@Vlasko60 4 жыл бұрын

It's only called "down" because of them Northerners that decided they were on top.

@haggismuncher735 3 жыл бұрын

When talking about our solar system, we always show planets on a 2d plain. I've always wondered what would happen if you go "up" or "down" in relation to the planets in our solar system.

@stefanschneider3681 Жыл бұрын

That's what Pluto dared to do ... and you know what happened 😱🤣🤩

@WeaselWJ 12 жыл бұрын

The core is full of stars, with a supermassive black hole in the centre.

@sadetwizelve Жыл бұрын

I've always wondered,where are telescopes and probes sent? Up,down?

@Destro7000 12 жыл бұрын

Brady: something I've always wanted to ask - does the perimeter of our Solar System (lets say the Oort cloud) ever intersect with the perimeters of other Star Systems, and do edges of Star Systems often overlay each others' boundaries like this? + could another star ever capture Pluto (and the other TNOs) from us?

@TedManney 11 жыл бұрын

She didn't just reveal "another" bias, the only bias from the start was Dr. Gray's conception of north as "up" and "better." She apologized for astronomers aligning the north of the solar system with the north of the galaxy, but if the decision were made in the southern hemisphere, they still would have aligned south with south.

@nickallen5900 5 жыл бұрын

What would happen if you went straight down out of the plain please explain

@Subparanon 12 жыл бұрын

Dr Gray has my exact eye color. It's a little un-nerving look into them.

@__alia__ 12 жыл бұрын

Question: Do we know what our local cluster revolves around? (ie do we know our local cluster's north and south?)

@TheOmengod 2 жыл бұрын

So if the universe is flat how do you go up and down. I get that there's enough space to actually go up and down but what happens when you reach the end of that space? The impression that I get is that the universe is an infinite rectangle. So my question is what is above and below that rectangle and how wide is the rectangle?

@pyrodoll2422 5 жыл бұрын

Does the ecliptic plane stay the same in relation to the galactic centre as the galaxy spins?

@oscar3eyes 3 жыл бұрын

What I do not understand: Why do the stars in each globular cluster appear to be in a spherical distribution about the center of gravity of each cluster, and why don't all the stars of a globular cluster go crashing into the center of gravity of that cluster?

@aeonsparrow5855 10 жыл бұрын

Yes, does she have her own channel of lectures or something (similar to Professor Moriarty)?

@KazimirQ7G 10 жыл бұрын

She said the tilt between the Celestial Equator and the Galactic Plane is about 60º. So, as the Earth is ~23º tilted to the Ecliptic, which is the tilt related to the Ecliptic and the Galatic plane? Is it 37º or 83º? Thanks

@caboose202ful 7 жыл бұрын

it could also be any number between 37 and 83

@ZBritt92 6 жыл бұрын

It probably precesses between the two. No?

@richardfrieman 6 жыл бұрын

This got me thinking, so I build a very crude Illustrator diagram. I'll include an imgur link at the end. The plane of the solar system (ecliptic) is 60 degrees inclined in respect to the plane of the Milky Way, and the equatorial plane is 23 degrees inclined to the ecliptic, thus the actual angle of separation between the equatorial plane and the galactic varies between 83 and 37 degrees. It varies because the orientation of Earth's axis precesses every 26,000 years (the orientation of Earth's N pole moves around in a circle). I'm also assuming that the Solar System also precesses about its axis, although that would not change the angle with respect to Earth. Another phenomenon that can influence this angle is Earth's axial tilt or obliquity. As mentioned earlier, Earth's rotational axis is currently 23 degrees offset from the ecliptic pole, but this number also changes. Every 40,000 years, this 23 degree tilt can change from roughly 22 degrees to 24.5 degrees. Here's a link to my crappy drawing. Hopefully you can decipher it. The lower image is a magnified image of the solar system and celestial planes. imgur.com/a/th0Pt

@DevinOfBacon 2 жыл бұрын

Ok, but who determined North to be 'up'?

@jvaldez1896 8 жыл бұрын

well now i know who to call if I need to travel or get lost around the galaxy

@Mastertim2006 12 жыл бұрын

i like her voice. its nice and calm :)

@sengxm7483 6 жыл бұрын

So, the space above south pole, Is it pitch black or it also contains stars and galaxies?

@gregoryfrechou 5 жыл бұрын

old video, but still need to ask, In respect to 'Up' what's the magnetic bias to the galaxy? can we even tell? or does it get drown out by background radiation?

@GreenHatPIrate 12 жыл бұрын

Do you know programs to travel the universe virtually ?

@thebeatthrift1783 5 жыл бұрын

How do you know which way is east and west in space?

@pateljipatel4856 2 жыл бұрын

Sister U R Genius 🙏🇮🇳🙏

@mikerotonda6264 3 жыл бұрын

Well in space, I would imagine nothing is up or down....just up or down relative to a fixed object.....right?

@zapfanzapfan Жыл бұрын

Dr Grey is on top of things 🙂

@spitlerspitler 6 жыл бұрын

doesnt it have to do with the direction of rotation? The angular momentum vector..?

@Jv615 3 жыл бұрын

Is there a universal north and south? ( The entire universe?) Or is that the same as the galactic plain?

@RobertSeattle 12 жыл бұрын

I thought at one point astronomers thought our solar system was much closer to the "outside" of the milky way. Is this just a faulty memory or did our "positioning" get updated sometime in the past decade or two?