Becky Smethurst took a "boring" Messier Object and came up with thoughtful, fun topics related it. She's always giving us broader picture of astronomy and her field. Thanks for the hard work!
@Olhado256
6 жыл бұрын
I love the animations showing what the cluster actually is in 3D
@simonkey101
5 жыл бұрын
If you enjoy seeing the stars in 3D you should download space engine, if you have a pc, it's a free simulation of the entire universe.
@waltdistel716
6 жыл бұрын
More Becky!
@myysterio2
6 жыл бұрын
I think that's Dr. Becky to you ;p
@gamesfrome
6 жыл бұрын
Agreed! (Btw, mooie naam, same as mine. xD)
@SouthernMenace
6 жыл бұрын
Love your way of talking about astronomy, professor, and the Messier videos are always very interesting, due to their variety. Keep on recording!
@mikebaginy8731
5 жыл бұрын
M23 a somewhat boring cluster? I found Becky's explanation fascinating. Thanks!
@Zw1d
6 жыл бұрын
MORE BECKY!
@BillySugger1965
6 жыл бұрын
Thank you Dr Becky for a fascinating look at the evolution of open clusters. One thing left me puzzled though. You said that after the large, short lived stars burn out, they no longer contribute to the mass of the cluster. Surely that’s not because they’ve stopped shining, but have lost a significant portion of their mass. What is the mechanism for this? Supernovae? Planetary nebula formation? And does this material leave the star above the escape velocity of the whole cluster?
@Teevock
6 жыл бұрын
I had a similar thought, that as the stars “died out” they might inadvertently feed their stellar neighbours. Thus perpetuating the lifespan of the cluster as a whole? Can stellar nurseries be created by many high mass stars going supernova, creating a metal-Rich molecular cloud? Or Would the cluster drift apart long before the stellar remnants could be interacted with by other stars in the area?
@klausolekristiansen2960
6 жыл бұрын
Giant stars end their lives as supernovas. Much of their mass is ejected at high speed. For one type of supernova, all of it. It will take thousands of years for this mass to leave the 20 light year cluster, but the time scale here is hundreds of millions of years.
@rexthibs4312
Жыл бұрын
I love how she says cluster ❤
@panthershockey4453
6 жыл бұрын
Good star clusters never die, they just fade away...
@4trym
6 жыл бұрын
Beautiful entropy at 3:23
@ronmoore8609
5 жыл бұрын
Interesting, easy to listen to and very pleasing to the eye.
@kappadistributive
6 жыл бұрын
So, you said that the amount and density of the gas would dictate whether an open or globular cluster was formed. I'm wondering, at these scales, does rotation of the gas cloud have a significant impact? Basically what I'm thinking of is a large, dense gas cloud with high rotational speed forming stars. Due to the rotational speed, I would expect it not to form a globular cluster (as I would expect the stars to more or less form in a single plane similar to rotating galaxies) and when viewed from top, I can imagine it would look similar to an open cluster. Is this intuition correct? If not, where does it go wrong and how do we know it is wrong?
@michaelsommers2356
6 жыл бұрын
If the cloud did not have some rotational movement (or, more exactly, if the components of the cloud did not have some peculiar motion), then the whole clould would collapse into a single object.
@victorfergn
6 жыл бұрын
I love these videos, it doesn't have to be a Messier Object... you can talk about any object in the sky, I would watch it.
@iampracticingpiano
6 жыл бұрын
This was very interesting! I always look forward to these videos!
@leplum2001
6 жыл бұрын
What can you tell us about the Bootes Void?
@flamencoprof
6 жыл бұрын
From a Blog post of mine 24/05/15 on an APOD of 47 Tucanae" - "The interesting aspect of this is that some of the lighter stars can reach "escape velocity", flying right out of the cluster, and astronomers call this process "Evaporation", a term also applied to the loss of lighter gases from a planet, such as hydrogen and helium from the Earth - some molecules of sufficiently light gases at the top of the atmosphere will exceed the escape velocity of the planet and be lost. I find it an awesome concept, that a similar process to what leads to that dry brown ring in the bottom of a finished coffee, is happening to stars in a cluster, and even to galaxies in a cluster of galaxies." "As above, so below" so to speak :-)
@rtpoe
6 жыл бұрын
If an object turns out to be "boring", you can also talk about things like "Who was Charles Messier?" and how cool these things look in small telescopes.
@antoniomonteiro1203
5 жыл бұрын
Dr. Becky: you mention many times the gravitational effects on the formation and evolution of objects. And you give some explanations based of that interaction. But you know that dark matter contributes more than visible matter to the behaviour of some objects. How can you live it outside? Wouldn't it be interesting at least to mention what we know (even if little) about dark matter to explain some parts?
@jonassjoedin2306
6 жыл бұрын
Becky is so adorably lovely
@Nilguiri
6 жыл бұрын
6:23
@JohnJohansen2
6 жыл бұрын
@@Nilguiri 3:58
@l33tsh33p
5 жыл бұрын
@@JohnJohansen2 7:04
@rhoddryice5412
4 жыл бұрын
5:40 The Seahorse Strem
@metalwellington
4 жыл бұрын
escape velocity means the velocity you need to escape. so smart.
@kevinhanley3023
6 жыл бұрын
Thank you, always a pleasure to watch
@user-dz3ph7dl4m
6 жыл бұрын
Don't worry there are plenty of NGC objects to get through!
@ukiluser
6 жыл бұрын
Brady, maybe you could get Brian May in this channel to talk about his doctorate thesis????
@mdtrx
6 жыл бұрын
well, still got 7 mins out of it! :)
@michaelexman5474
3 жыл бұрын
so the oldest stars in the universe are 1st order stars or 3rd order stars i remember that there organised backwards or counterintuitively!!! huh??? thats weird
@choochoochooseyou
5 жыл бұрын
Omg, I've always wondered if clusters and constellations weren't just a thing we created because of our perspective. So they are actually linked? How would our ancestors have known this?
@steviegee2011
5 жыл бұрын
❤️❤️❤️Becky❤️❤️❤️
@no_more_free_nicks
6 жыл бұрын
I have to talk about about boring open cluster, what needs to be done to kill it :D
@primoroy
5 жыл бұрын
I am assuming that the cluster is recognizable in the night sky to be classified as M23.
@ChadMILLER0
6 жыл бұрын
I have a serious crush on Dr Becky.
@petramakler8733
6 жыл бұрын
Yess
@j7522
5 жыл бұрын
Do stars collide?
@mylegGuy
5 жыл бұрын
Jordan Bakos sometimes but its pretty rare
@will2see
5 жыл бұрын
Don't mix globular clusters with open clusters. They are completely different beasts. We are not sure how globular clusters form. We've never seen one forming. Globular cluster and 1000s of stars? You mean 100 000s of stars, don't you Becky? And, btw, open clusters aren't gravitationally bound (stars in them), that's why they break-up with time... Becky Beck, for a Dr. you say a lot of nonsense.
@SpoopyGamer
6 жыл бұрын
I got such a crush on Becky :P
@TheManInRoomFive
6 жыл бұрын
We all do.
@Ilzakirov
6 жыл бұрын
Welcome to the club pal
@Triantalex
6 ай бұрын
@@TheManInRoomFivefalse.
@trombone_pasha
6 жыл бұрын
Becky is perfect!
@abhijeetghodgaonkar
6 жыл бұрын
Yo
@veritypickle8471
6 жыл бұрын
CFB..
@dandurkin9735
Ай бұрын
Hmmmm … M23 is a pretty open cluster in an interesting part of the sky. It’s a shame to portray it as boring. Try viewing it with your own eyes through a telescope. The video too often confounded globular and open clusters (animation for a globular).
@NocturnalJin
6 жыл бұрын
M-94 please. Strange galaxy. Too little dark matter present.
@abdulquddususmani1524
5 жыл бұрын
IS (america) owner of THE EARTH- THE OTHER PLANET,S AND THESKY
@carlwitt7950
6 жыл бұрын
I have such a hard time concentrating on what she's saying. Hands down, the most beautiful astrophysicist to ever live.
@Nilguiri
6 жыл бұрын
Alright, calm down mate.
@NeilVickers
6 жыл бұрын
It sounds to me like almost all of the Messier objects are more interesting than M23 in some way; older, younger, higher metallicity, greater mass. Sounds like M23 is pretty unique in its own way, then :)
@therion108
4 жыл бұрын
M23 looks very handsome in my 20×80 binocular.. Like spilled grains of salt...
@HughPryor
6 жыл бұрын
2:50 fewer and fewer stars, not less and less! #thepedantsrevolt
@LaunchPadAstronomy
6 жыл бұрын
Appreciate this discussion. Instead of a boring object, there’s an entire story to be told. Well done!
@jscarborough9928
6 жыл бұрын
I'm confused. How does stars burning out reduce how much they are gravitationally bound to each other? It's not like the mass of those stars ceases to exist. It's still going to be in the gravitational system... even if it goes super nova.
@DrBecky
6 жыл бұрын
Most large stars will die by going supernova. The force from that explosion disperses most of the gas that was contained in the star out of the cluster.
@ianbcnp
6 жыл бұрын
Interesting question, really interesting answer and leaves me as boggled as these things often do when I'm told that a supernova is powerful enough to sling material right out of the system. Proper infinite perspective vortex type stuff!
@BGraves
6 жыл бұрын
Their mass is also coverted to photons
@Cadwaladr
6 жыл бұрын
As far as I know, even smaller stars like the size of the sun give off quite a bit of material as they die, and that's where you get planetary nebulae.
@LeoStaley
6 жыл бұрын
a photon has energy, and thus creates gravity. very little total energy is lost, and thus very little gravitational energy.
@jacquechanny945
3 ай бұрын
Alien reggae are looking scory jamaican
@tomimantyla8236
6 жыл бұрын
Do stars in clusters ever collide? Their orbits seems to be quite chaotic. I guess distances between stars are huge, even in clusters.
@Morbacounet
6 жыл бұрын
I think it's really unlikely two stars would just collide. They would probably first form a binary system that could become unstable afterwards and merge.
@cgaccount3669
5 жыл бұрын
I'm not sure how accurate it is for all groups but in one video I heard distances between stars are comparable to a basketball in NYC and another in LA.
@aarond0623
6 жыл бұрын
M23 - Yuh basic!
@veggiet2009
6 жыл бұрын
So galaxies can have rings! That was a question I had a long time ago
@jacquechanny945
3 ай бұрын
😊jamaican reggae
@sheridancopley8787
6 жыл бұрын
Becky is actually one of the most interesting girls on the whole of KZitem. Only those who are born with the thirst for knowledge and answers will appreciate my comment. I Kinda feel sorry for everybody who is not familiar with Becky and the rest of the Deep sky video crew.
@manojsaxena1462
5 жыл бұрын
Nobody can remove clusters but everybody can clean clusters in house. That is die clusters.
@metalwellington
4 жыл бұрын
escape velocity means the velocity you need to escape. so smart.
@iugoeswest
6 жыл бұрын
Bye bye 20s!
@UpcycleElectronics
6 жыл бұрын
Lol great ending audio clip.
@DirtyPoul
6 жыл бұрын
I think that was from the ring galaxy episode or whatever it was called. Quite a fun one.
@TomUlcak
5 жыл бұрын
Wow! Is she cute... and smart!
@eyykendrick
6 жыл бұрын
:D
@ricardoabh3242
6 жыл бұрын
A sad cluster, still curious.
@BytebroUK
6 жыл бұрын
Don't know whether this has been done here, so please forgive me if it has... but I don't see that "interactions with other objects" are necessary, because if you have a cluster that is "loosely gravitationally bound" surely the tidal effects of orbiting the galaxy will inevitably "smear" the (former) cluster out. No?
@АндрейДынин-л8т
5 жыл бұрын
Energy exchange limit or limit for two point to interact. it is a bit hard to write down this thought for me. if two points have relative speed more then speed of light, they not able to interact. but they can interact through the third point. (exactly like dark matter) (try to imagine world WITH OUT this).
@thisnicklldo
6 жыл бұрын
That stuff comparing the formation of globular and open clusters has confused me a bit. I thought globular clusters were extremely old, about the same age as the galaxy and formed at about the same time - I assumed by similar a similar process, whatever that may be. But surely not like the formation of open clusters in the recent past from gas and dust that is the product of galactic recycling and itself quite young, whereas the globular clusters must have formed from something primordial, mustn't they? I take the point that if there's a lot of stars there must have been a lot of primordial stuff (hydrogen and helium, I suppose) that ensures they are gravitationally bound - though how it came about that there was a little patch of that stuff all in one place I don't know at all - but differently to how star-forming regions are created within the galaxy, surely?
@MrAlpacabreeder
5 жыл бұрын
You shouldn’t run it down. Real people (or the galactic equivalent) live there. It isn’t fair to run down a low population neighborhood. Treat them with respect or they will hold it against us when they have warp drive capability
@rouissiachraf
6 жыл бұрын
the comment section is about Dr.becky and less about the star cluster
@jwarmstrong
5 жыл бұрын
The escape velocity doesn't work well on galaxies out on the rim so the same force may hold clusters.
@intheelfcondom
5 жыл бұрын
when the massive stars die off, why does this make cluster less gravitationaly bound? i mean the mass is still there just spread out a bit but in the same spot
@mistersmithster
6 жыл бұрын
I hope you guys keep doing this even when you run out of Messier objects!
@gcm4312
6 жыл бұрын
very interesting.. I had no idea about 'death' of open clusters and appearance of streams
@MoreGore
6 жыл бұрын
How did the 18th Century Charles Messier categorise this as one of his objects if the stars as so disperse?
@Xankill3r
6 жыл бұрын
Looked it up on Wikipedia - the cluster has an apparent size of 27 arcmins, about the same as the moon (hopefully did not confuse radius vs diameter). It would therefore have appeared as a fuzzy object to Messier - and fuzziness is primarily the criteria he was working on.
@myysterio2
6 жыл бұрын
Love Dr. Becky. I could listen to her read the back of a Soup can.
@DavidvanDeijk
6 жыл бұрын
In this video the Dr. told quite some stuff i did not know yet. Very interesting the stuff about streams
@mangalover0149
5 жыл бұрын
You now have an audiobook! :D
@pipertripp
6 жыл бұрын
It's more pants than the pants cluster (M29)!
@tinymetaltrees
6 жыл бұрын
Triffid is spelled wrong.
@JBenedetti1978
6 жыл бұрын
Yes more Becky! I love her, she's amazing!
@2ebarman
6 жыл бұрын
Do galaxy superclusters eventually die by the acceleration of the universe? I know there is a rather large difference in sizes between open clusters and galaxy superclusters, but the answer to the latter one has been avoiding me and this video reminded me of that q I have ...
@michaelsommers2356
6 жыл бұрын
The forces between the components of the clusters should be strong enough to counter the expansion of the universe.
@GenghisKhan22
6 жыл бұрын
It’s called a cluster, but I’ll assume they are all trillions of km apart ?
@jscarborough9928
6 жыл бұрын
150 stars in a cluster that is 20 light years wide... yeah, I'd say they're far apart!
@starknifez4846
6 жыл бұрын
Ooooo here's another interesting question: how many stars do you need to to classify as an open cluster? (Regardless of gas composition)
@Nilguiri
6 жыл бұрын
3?
@Mekratrig
6 жыл бұрын
42?
@Princeoftale
5 жыл бұрын
I'm hypnotized by your intelligence and your eyes
@apburner1
6 жыл бұрын
Hey Becky You're so fine You're so fine you blow my mind Hey Becky
@no_handle_required
6 жыл бұрын
There are not enough videos with Dr. Smethhurst. We need more.
@oskarrecon8151
6 жыл бұрын
my favorite science broad of them all.... thanx for talking like a normal human ..
@TsarOfTheStar
6 жыл бұрын
The CUTEST Dr I have ever seen is Dr Smethurst...
@FiveElementNinja
6 жыл бұрын
Thumbs up for Becky
@suddenrushsarge
6 жыл бұрын
Marry me and teach me about astronomy every day. :)
@Nilguiri
6 жыл бұрын
Alright mate, calm down.
@nout4269
6 жыл бұрын
That's creepy.
@suddenrushsarge
6 жыл бұрын
twas what I was going for. 1 percent of the time, it works every time.
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