White Dwarfs & Planetary Nebulae: Crash Course Astronomy #30
Вставка
- Опубліковано 7 сер 2024
- Today Phil follows up last week’s look at the death of low mass stars with what comes next: a white dwarf. White dwarfs are incredibly hot and dense objects roughly the size of Earth. They also can form planetary nebulae: huge, intricately detailed objects created when the wind blown from the dying stars is lit up by the central white dwarf. They only last a few millennia. The Sun probably won’t form one, but higher mass stars do.
Check out the Crash Course Astronomy solar system poster here: store.dftba.com/products/crash...
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Chapters:
Introduction 00:00
White Dwarfs 1:26
Planetary Nebulae 3:59
How Do Planetary Nebulae Get Their Shape? 5:56
Structure and Color of Planetary Nebulae 8:12
Will the Sun Become a Planetary Nebula? 9:35
Review 10:16
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PHOTOS/VIDEOS
Journey to the center of the Sun www.spacetelescope.org/videos/... [credit: ESA/Hubble (M. Kornmesser & L. L. Christensen)]
Blowing Bubbles chandra.harvard.edu/resources/... [credit: (NASA/CXC/April Jubett)]
Artist's impression of the sizes of Sirius B and the Earth www.spacetelescope.org/images/... [credit: ESA and NASA]
The Dog Star, Sirius A, and its tiny companion www.spacetelescope.org/images/... [credit: NASA, ESA, H. Bond (STScI), and M. Barstow (University of Leicester)]
The Spirograph Nebula www.spacetelescope.org/images... [credit: NASA/ESA and The Hubble Heritage Team STScI/AURA]
M27, NGC6853, Dumbbell Nebula www.noao.edu/image_gallery/ht... [credit: REU program/NOAO/AURA/NSF]
Soap Bubble Nebula, PN G75.5+1.7 www.noao.edu/image_gallery/ht... [credit: T. A. Rector/University of Alaska Anchorage, H. Schweiker/WIYN and NOAO/AURA/NSF]
Hubble Sees Supersonic Exhaust From Nebula www.spacetelescope.org/images/... [credit: Bruce Balick (University of Washington), Vincent Icke (Leiden University, The Netherlands), Garrelt Mellema (Stockholm University), and NASA/ESA]
Hubble snaps NGC 5189 www.spacetelescope.org/images/... [credit: NASA, ESA and the Hubble Heritage Team (STScI/AURA)]
A dying star’s toxic legacy www.spacetelescope.org/images/... [credit: ESA/Hubble & NASA]
Eskimo Nebula www.nasa.gov/multimedia/imageg... [credit: NASA/Andrew Fruchter (STScI)]
Planetary nebula Abell 39 www.noao.edu/image_gallery/htm... [credit: WIYN/NOAO/NSF]
The Butterfly Hunter chandra.harvard.edu/resources/... [credit: (NASA/CXC/April Jubett)]
Red Giant Sun (video) www.spacetelescope.org/videos/... [credit: ESA/Hubble (M. Kornmesser & L. L. Christensen)]
The planetary nebula Abell 33 captured using ESO's Very Large Telescope commons.wikimedia.org/wiki/Fi... [credit: ESO, Wikimedia Commons]
ESO's VLT images the planetary nebula IC 1295 www.eso.org/public/usa/images/... [credit: ESO]
Looking Down a Barrel of Gas at a Doomed Star hubblesite.org/newscenter/arch... [credit: The Hubble Heritage Team (AURA/STScI/NASA)]
This is my favourite crash course series. Mainly due to Phil. I don't know, just the sheer amount of wonder and passion that he puts into this, makes appreciate this series on a whole other level than the others. Not to mention that he is talking about some of the most beautiful, powerful and eventful in... ever kinda helps.
.
I am a fan of the subject matter but I think Phil is a great host. The faces are what get me.
+Dean Goldenstar Wow. Thank you so much!
+Dennis Burgner :D
***** No. Thank you for this amazing series^^
I really love it when Phil does this ":D" face.
+kaiplue "And now we've come...full circle" :D
+kaiplue I'm a guy and I'm having a raging boner for Phil.
Amin Gholamzadeh Good for you. :D
+Amin Gholamzadeh say nohomo please
+Rizki Yanuar it wouldn't be bad if he intended. to say it with allthehomo
This is definitively the best episode of Crash Course Astronomy I've seen. Thumbs up!
+selfreference2 Thanks! This stuff just keeps getting more interesting the more we explore!
-Nicole
+selfreference2 I had the same thought. Awesome stuff!
this is the best crash course ever
+truth1901 what ever the thing is that keeps us on earths surface, and not floating into space, is not an illusion.
+truth1901 Yea...um...Einstein never did that.
+Isaac Andrade It's so meta, even this acronym.
+Nitay A. The Red Rectangle Nebula is pretty cool
+Nitay A. the cateye Nebula, am I right?
+Max Fux yup, also my favourite
+Nitay A. Nebula
Phil Plait inspired me to be an amateur astronomer.
Thanks and keep up the good work!
A few years ago, I took an intro astronomy class taught by a respected astrophysicist in the community. She was incredibly smart, but I didn’t really learn much, and the class definitely wasn’t enjoyable. If I had been taught by Phil, it would’ve been my favorite class during my undergrad thus far. He’s so passionate and fascinated by this stuff, and rightly so, because it’s absolutely INSANE. Love this series. 10/10. It makes me want to take more astronomy courses.
I'll confess I'm a little afraid of Phil's next episode... He's gonna' be blowing up stars for us...
+Migario Lamplight And lots of 'em.
That's goin' Nova the top
+Migario Lamplight I guess it'll be mind blowing.
Please NEVER stop making these videos.
Phil Plait, you're fantastic. Do this series forever, please!
Anyone else squeal like a little girl when you see there's a new CC:Astronomy video? I can't freaking wait to get to the black holes episode! You're one of my heroes Phil.
Can't wait for next week!! You guys are AWESOME! Ky
I love the way Phil presents this stuff. Not only does he make all the information easily digestible (with beautiful NASA photos), he also makes it relatable on our tiny, tiny level by talking about how these far-flung things in space have interacted with his own life in some way. Plus, I absolutely love all the silly faces, reactions, and truely awful jokes he puts in the episodes. Fantastic series!
Wow, I'd never heard the theory that planets engulfed by their progenitor star could help shape the nebula. Amazing!
KSP and CrashCourse = perfect combination for astronomy geeks!
+MrB999 Y'know, if Phil has the three Kerbals on his desk, perhaps someone should do the opposite: Build a Phil-shaped rocket in KSP!
+MrB999 You're forgetting about the Universe Sandbox!
KSP
Space Engine
Crash Course
Universe Sandbox 2
-----------------------------------+
= EVEN MORE PERFECT COMBINATION FOR ASTRONOMY GEEKS LIEK ME
+MrB999 KSP, Space Engineers, No Man's Sky and Universe Sandbox
Raga Khalif Spacegasm!!!
This is mind blowing! I had never heard of that theory of the stars swallowing their planets. Awesome!
+Emily Nadira I loved the thought of planets stirring up a nebula like a whisk.
Thank you very much for making this video, Phil Plait and the others at _CrashCourse_ Astronomy! I really enjoyed hearing about white dwarfs, planetary nebulæ and how they form. So beautiful! I hope you will mention black dwarfs sometime. ;D
10:14 Love that laughter! Love it!
My favorite star is the DEATH STAR
+Dr.Voctor It sure as hell isn't a moon.
HA HA HA indeed not
+Dr.Voctor mine is a porn star.
+ociv delos
Loo
That’s no star...
I love Crash Course and I am soooo happy that I found it. Every single one you guys does excellent work. 👍🏽
thank you Phil, 11 minutes packed with quality info
I love these series :D
Never been so excited for more
I’ve not seen this dude before... just back-to-backed about 6 videos. Awesome. Properly awesome. I’m so happy.
CrashCourse astronomy - Phil plait - Thumbs up!
thank you for making these videos! really interesting keep it coming
I really love all these Astronomy series!!! I wish there are more videos coming :(
Amazing, loving the series.
Aw.. this is my third comments on this series. Would be really fun if ones can attend Phil Plait class. :D Love his way sharing knowledge so much! Thank you Phil Plait!
Oh man, I love Phil. He is such an awesome teacher
My favorite Astronomy episode yet. i wish that coming episodes about stars life cycles are even more detailed and visual.
This crash course should be required learning in every school around the world.
Phil makes it easy (somewhat) to digest and also fun to learn.
Give this man a raise :)
I love this series, especially because of Phil's sheer enthusiasm.
I am not that interested in astronomy, but every time I see a CC:Astronomy pop-up in my subscription list I click it thinking "aw might as well". 3 minutes in I am staring at the screen going, "This is the most interesting thing I've ever heard of."
Sarah Ziglar contradiction ?
Can't wait for next week's episode :-D
I could keep watching these videos all day long, best serie ever.
nice! i learned something again!
I'm always so happy when there's a new episode of this series!
I love the dramatic zoom-ins. Hilarious! This is good stuff.
I've really started to look forward to these episodes.
Man I love your clips, they are so informative and interesting. Really brings astronomy to life! :)
Crash course astronomy is amazing!!! Thanks to Phil here!
these really are amazing! I enjoyed every single minute of each video in this series! keep up the good work, you are doing something that benefits the whole of humanity!!
Phil is absolutely my favourite crash course instructor. Trying really hard to get into the economics folks because I'd love to know more about how money works and how we think about it, but boy are they... noticeably new to being on camera.
Phil, you are awesome! I love that you so are so obviously fascinated by the subject, it warms my heart to see somebody so dedicated to his job! Also, I laugh about every single pun you make, mainly because of your facial expression! :D
Thank you for doing this, and thanks to everyone else involved!
This series is the only that keeps me wating for the next episode every week. Please keep up the good work!
I absolutely love him. One of the best hosts on CC.
I can't wait a week for the next episode!!!
I enjoy all of your videos so full of amazingness
Oh man I hope we get into black holes next episode
+TheZeyon Next is going to be supernovas, Black Holes should come soon enough
+Felipe josé I suspect next is novae then plausibly supernovae is the episode after. At some point beyond that we'll get into black holes, neutron stars and quasars I expect.
I recommend PBS spacetime vid on black holes. It blew my mind.
+Banana Hunter Pro Ours too! +1 to this excellent recommendation! Just to make it as easy as possible for anyone interested: ua-cam.com/video/vNaEBbFbvcY/v-deo.html
-Nicole
+TheZeyon It'll be a few more weeks. Outtakes are coming up next and then Black Holes will be episode 33 -- but we're getting there!
-Nicole
hey I didnt know some of this, cool. Love your enthousiasm and yellow shirt.
Crash course astronomy is by far the best in the Crash course series!! Kudos and keep the videos coning! I always watch them while having Friday breakfast here in the Philippines. :)
Can't wait for the next episode, this helps a lot since today we started with astronomy today at class. Happy to share my happiness with class mates.
Thanks for making these great videos!
Thank you so much for this video
So happy i found this. I loved astronomy when i was a kid but i watched Brian Coxs TV program on it and it destroyed my interest but now I've got it back thanks Phil
You are great Phil. Not everyone have such a knowledge about astronomy and especially not everyone worked on Hubble. Go on!
Can't wait for next ep.
Great video
Love your work Phil!
Love this guy! Such great energy.
These vids are solidly explained in understanding.
That was beautiful!
That just blew my mind! The planets getting eaten by their star, BUT STILL ORBITING IT FROM INSIDE?! Like wtf?! That's the coolest thing ever!! Like how do you come up with that?! That's freaking incredible.
loving this series!
always awesome
this is an amazing episode of crash course
Truly awesome.
love crash course. thank you for such a wonderful and free resource.
Of all the crash courses I love this one the most.
The other crash courses rely on gimmicks and jokes, Phil just lets the science be the attraction.
He has a palpable sense of enthusiasm, keep up the god work.
Phil is so great!
I love this series so much I squeal whenever a new episode is posted
I like these series so much.
One of my favourite celebrity astronomers but that shirt ! Crash Course always knocks it out of the park with how enjoyable their content is.
I learn more in one of these 10-15 minute videos than I did in almost a whole semester of astronomy in high school.
This was truly a great episode
Neat. I actually learn a few new thing today. I should study more about White Dwarfs. For some reason they have not interested me that much in the past. But this changed my mind. :)
I always look forward to new episodes
I love your videos!
I can't wait until next week!
Phil is greatest of all time with this!
next week is gonna be brilliant
BEST CRASH COURSE SERIES EVER. MORE PLEASE 🙏🏼
Hey Phil, great episode. I heard you on Ted's radio hour podcast last week. Happy to hear that asteroid isn't going to hit us. :)
Amazing course
This is my favorite Crash Course series
Best series on youtube.
Love you Dr Plait ! “And we come FULL CIRCLE” 8:11
love this show
This is so incredibly interesting and beautiful at the same time! *Pauses video.* Ok, 5 more minutes to go- yay! :D *Presses Play*
Very very thanks crash course :-)
Haha you're pretty good at being funny. Keep it up. Thanx for the awesome video's!
My favorite series out of all Crash Course!
this is the best crash course ever !
really helpful. damn good. awesome
*I’m addicted to this series*
You're the man Phil
I love this show!
Best series idea CrashCourse ever did.
I hope that this series goes for at least another 30 episodes... though, I know that would be a lot of work to put in.
Michael D. Rodgers,
Unfortunately, It only had 46 episodes 😔😔
I wonder if they're going to do supernovae and black holes in one episode or two. Great episode guys, keep it up! :D
OMG next week be here already
i love this show so much