M44 - Exoplanets in the Beehive Cluster - Deep Sky Videos
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- čas přidán 8. 01. 2019
- Dr Becky Smethurst discussing Messier 44 and the discovery of planets around stars in the open cluster.
More links and info in full description ↓↓↓
More videos with Becky - bit.ly/Becky_Playlist
Messier Object videos we have made: bit.ly/MessierObjects
Exoplanet transit: • Exoplanet Transit - De...
Two 'b's in the Beehive: The Discovery of the First Hot Jupiters in an Open Cluster: arxiv.org/abs/1207.0818
Four hot DOGs in the microwave: arxiv.org/abs/1510.04179
Dr Becky Smethurst at the University of Oxford: rebeccasmethurst.co.uk
Deep Sky Videos website: www.deepskyvideos.com/
Twitter: / deepskyvideos
Facebook: / deepskyvideos
More about the astronomers in our videos: www.deepskyvideos.com/pages/co...
Supported by the University of Nottingham
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Videos by Brady Haran
This video shot and edited by James Hennessy - Věda a technologie
I think this is my favourite Messier object video I’ve done. Sure it doesn’t have references to Super Freak by Rick James but it’s got the best story
Dr. Becky not the ring bearer??
@@scottmuck Oo good point. That one is a close second.
have to agree with you there. this was one of the most interesting episodes of DeepSkyVideos to date because of the story and how much we've learnt from m44. It's amazing how young it is.
I was going to mention the ring bearer too :-)
What I found super interesting in this video is that I'm old enough (43 years) to remember that when I was a teenager, I was explained that the way the solar system is (I mean the order of the planets according to their sizes) was the "norm".
My point is not to underline that astronomers were wrong. My point is that not knowing anything else than our own solar system implicated that the only acceptable choice was to think our solar system was nothing special, thus the explanations about its formation had to fit this constraint.
I hope one day we can have tools to observe not only planets, but moons too in other systems.
Because by our actual knowledge, the couple of our Earth and Moon is already not the "norm" in our own solar system (of course I mean in respect of their relative masses).
But it may be even more rare...
Having a rough estimation of the probabilities of having a similar solar system, plus a similar couple Earth/Moon, may transform strongly the Drake equation.
We may be the winners to the GalaxyMillions...or even the winners of the SuperClusterMillions :-)
Gwendal
PS: sorry for the poor english, I'm French.
Dr. Becky, since you're here, could you please ELI5 again why the energy exchange happens as it does? Obviously each of the 2 interacting stars' masses doesn't change, so why the change of speed?
M44 is probably the only object in the sky that I learned about through finding it myself and having to look up what it was. So it has a special place in my heart! Super excited to learn more about it; now it's also the only place in the sky I can point to and know there's another planet there. :D
Yay for Dr. Becky!
Messier 44, what a beautiful sight from a telescope !
I am suddenly LEARNING so much thanks to Dr Becky!
Her way of explaining physics rekindles my love of science
Left everything aside to watch Dr. Becky explaining this star cluster.
M44 is a great object. Wonderful to observe with binos or a small telescope. This is a great story about the cluster. Makes the whole thing even better.
These are all such great videos! Thank you guys!
I can also see it being called the "beehive" because of the sort of triangular pattern of the large blue stars, kinda reminds me of a beehive. And maybe that in combination with the other stars being like a swarm around it.
More videos please!!! Can't get enough and need more about anything.
Your videos are always my favorite astrophysics entertainment and education channel. Currently at the pharmacy waiting for an Rx and this is my favorite way to wait! Keep up the excellent work Dr Becky.
I wonder if the Saturn-Jupiter resonance, keeping Jupiter from migrating into the inner solar system, (and them existing in the first place soaking up comets & asteroids) is one of the precondition for life to start/continue on Earth...
ohhh sweet! a few day ago there was this really clear night sky and I recently got really interested in stargazing and looking for clear and obvious formations in the sky and I saw this pretty cluster pretty clearly. took a bit to find out it was an actual cluster and even a messier object. definitely cool that you guys made a video about it now!
Love Dr. Becky!
Subscribed👍
These are very informative videos to this backyard, amateur astronomer working my way through the Messier Catalog.
It is absolutely fantastic to observe an object after viewing your video on it or returning to an object with more information gained from your previous videos with follow up research of my own.
Thanks from Northern California👍👍💫🔭😁
Great video. Well explained and very interesting.
wow Brady's voice has finally cracked!
thanks deepsky for all the great vids and for introducing us all to dr. becky. thumbs up :)
Great explanation visuals on how the planet is detected.
Becky you are literally way too awesome in these videos! Best thing on CZcams!
Anthony Och Thanks!
I was just looking for a DSV on M44! M44 will be 6* away from the Eclipsed Moon on January 20th!
Great video!
I appreciate the bubbling enthusiasm over such an anodyne topic.
Just came across this Channel and I'm glad I did! Beautiful explanation of the structure and properties of deep Sky objects. Especially for someone new to astrophysics and a newb amateur astronomer(bought my first telescope, a $40 50mm refractor from Walmart, about 8 months ago and upgraded to a used Orion 12" dobsonian about 2 months ago). I guess you can say I'm a proto-nerd.. lol
Really enjoying your videos... very interesting...
Thank You! Love you! Fantastic!
I'm hoping to return to M44 (observing 😅) this evening and feel the experience will be more fulfilling knowing what Ive learned in this video. Many thanks for posting
Brilliant.
Infinitely Intriguing 🔎
Wonderful!
Awesome !! Is the energy-momentum exchange the same mechanism as a gravity assist maneuver for spacecrafts?
Yes it is!
This ladies nails are ALWAYS on point
Takes me back to my Uni days. New sub here.
Very cool
whats the order of magnitude of the size of the red/blueshifts of the stars? must be tiny. awesome that we can detect such changes.
What are the implications for life sustaining planets and the drake equation? Would this migration disrupt their formation?
What are the theories about the star with the "noisy" diagram? Is it difficult to observe for some reason, or could it mean that it has several bodies influencing it?
I think M45,M42 and M31 is also visible to naked eye?🤔🤔🤔🤔
M44 is also known as Praesepe - "The Manger". I only mention it because I find it interesting that the Welsh word for manger is "preseb".
Can we detect multiple planets from a star's wobble, or do we run into the three-body problem?
Apparently, the sound got sped up (with pitch suddenly risen) at 0:10
180 parsecs is a bit less than 600 light years in case anyone else can't deal with parsecs as a unit.
I've remembered it's roughly 3 lightyears per parsec but I can't remember why it's like that
@@whoeveriam0iam14222 Bla bla arcsecond something something astronomical unit yadda yadda yadda pi.... equals about 3.2 ly ;)
Parsecs are so Earth bound unit of measurement...
I hope when we go interplanetary or interstellar we will change to ly
@@NoNameAtAll2 Because a year is not an Earth-bound unit of measurement? =) Or a meter for that matter?
@@unvergebeneid
Meter is definitely not
What would happen to smaller planets that formed closer to the star as the more massive planets migrated inward?
anyone else has the terrible feeling of the fix scraping the paper ir is this just my phobia? :)
awesome video though and dr. becky is best!
pr0201b and pro0211b are they in m44 or different galaxy ?
Can someone explain why the Kinetic energy is conserved?...I was thinking taking 2 stars as a system we can take total ext force (here gravity) as 0 (I think here we have to neglet the gravity effect from other surrounding stars) so tot energy is conserved. Now since Potential energy here is 0 (or is it?) we are saying KE is conserved. Am I thinking right?
Dr Becky Smethurst has such a beautiful eyes...
I think I saw this cluster while in utah canyon
insane
What do you think about the new dwarf planet Eris?
A quick question. If it's only 600 million years old, how are there already white dwarf stars?
This woman's voice is like champaign for the ears. Oh and the science is mind blowing. Great channel
I heard there’s a new way to find exoplanets that’s neither exoplanet transits nor radial velocity. Anyone hear of it? Anyone care to explain it?
RIP Kepler
RIPler
I remember seeing something about Jupiter being in a lower orbit before stabilizing in the current orbit. Was that fake news?
Powerful Dr. Becky in sharp focus
222.777 for Becky!
Pretty close to Earth, 180 parsecs and only 600 million years old... everything's relative, it's a pretty long commute... :-)
When a star hit another star what happen to their planets?
The odds of stars colliding outside of dense environments like the cores of galaxies, globular clusters or the super star clusters they form from are so unthinkably low that it likely hasn't happened within the observable Universe because space is big.
Correct answer: finis.
2017 light origin found
I'm in Love
so this is around 560 light years away ;)
I wonder, is it sometimes call the seven sisters?
That's Pleiades i think
M44 = Praesepe, Beehive, Manger.
Is Jupiter getting closer to the sun?
Wish it does
04:07 Marshmellow
She's lovely. Northern lass x
It appears the astronomers are masters in bad puns.
Through binoculars it does look like a traditional straw bee SKEP.
well ..if i understood that the your doing well.
How is the correction done to remove the redshift that occur because the observer is moving?
Yes, the spectral lines of different elements will move due to doppleshift, so from that you can even measure the speed.
It isn't. All velocity is relative. Since we're the ones measuring, it's measured relative to us
The observer's motion can easily be substracted by subtracting the average for all stars in the cluster or (apart from some constant factor that we don't care about anyway) because we know the observer's speed quite precisely. Even if you don't do that, the effects can still be distinguished by periodicity: The observer's motion will have exactly two periods, 365 days and the duration of Hubble's orbit around earth (or 24 hours if you use a telescope on the ground). Any other period will be related to the star.
I wonder: can we actually detect something as little as 12ms‾² Doppler shift with spectroscopy alone?
Have you guys found the binary star in our own system yet?
If the mass of our sun is 99.8 percent of the mass of our entire solar system, how can a planet with even the mass of Jupiter cause our sun to warble?
I guess this warble would be very tiny and measured over 12 years and you were leading up to the possibility of a very large planet close to its star? However, have any planetary formation models shown it possible for a planet that large to form that close to a star?
I guess I should have watched the entire video since you explained the plausibility of large planets migrating towards the star it's orbiting. I think I should find information that explains a greater variety of how a solar system and variations of planets are formed.
Sorry...
I looked at the title, then I instantly translate it to 'M4A1' 😅
Dr. Becky is WAY too serious in this video. :)
So heavier thing clumb together, that kinda look a bit like my idea that the first star started with 3He => C reactions making carbon cycle possible in pop III.
That's in the middle of my fake sign constellation.
Double Becky bubble... starting to feel like a stalker🤭🧐
@3:47 ... oh my....
Oh, you're right... mistype, thnx, I'll edit it.
"Nightfall" by Asimov, anyone?
I would love Dr. Becky to read it to me... us.
I wonder how crazy those people would go in the tunnel of love - I would have installed street lamps, spot lights & everyone would have a gobag w/ candles & flashlights. Plus a nightlight in every room.
These stars are young but have no H or He gas clouds around them - where is the matter they didn't take in.
Radiation.
Far too dim and small to see. If you tried to get it to show the image would just be a huge white blob. The same reason why you don't see stars in images of Earth taken from space.
I've just fallen in love with Dr Becky.
back up bro youre making me wobble
If you probe Uranus, you'll find your answer.
Interaction between stars is electrical.
Really? Jupiter causes the sun to wobble but doesn't gobble up the much closer, much lighter, moon of earth when it passes between earth and sun.. 🤔
Something completely _else_ is going on but NASA is 🤐 on it, if they even know.
This old theoretical physics is getting silly though.
Am I the only one hearing interwaction?? It's so cute lol
Yes.
First :D
nonsense
the earth is flat
No. The sun is flat. The earth is a cylinder.
gotta love the cgi believers!
No need for "belief" when you can look for yourself. Idiot.
This gets a vote down for being at least two weeks late. M44 is also known as the Manger; this video should have come out on or before Christmas. This video was not in response to breaking news, so why not schedule it at an appropriate time?
shut up nerd
Please stop saying 'So' to begin your sentences!!
So what?
Didn't know Astrophysicists are so preety
not all...
She's claiming that a body's mass will change after it interacts with another body through gravity. What kind of nonsense is this?
mass is constant it velocity that changes to keep inertia equal.