Today, Phil continues last week's look at the death of low-mass stars with what comes next: a white dwarf. White dwarfs are incredibly hot, dense Earth-sized objects. They can also form planetary nebulae: huge, intricately detailed objects created when wind blown by dying stars is illuminated by the central white dwarf. They only last a few millennia. The Sun probably won't form them, but higher mass stars will.

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Chapters:
Presentation 00:00
White dwarves 1:26
Planetary Nebulae 3:59
How do planetary nebulae take their shape? 5:56
Structure and color of planetary nebulae 8:12
Will the Sun become a planetary nebula? 9:35 a.m.
Review 10:16
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PHOTOS/VIDEOS
Journey to the center of the Sun http://www.spacetelescope.org/videos/astro_ac/ [credit: ESA/Hubble (M. Kornmesser & LL Christensen)]
Blowing bubbles http://chandra.harvard.edu/resources/animations/pne.html [credit: (NASA/CXC/April Jubett)]
Artist's impression of the sizes of Sirius B and Earth http://www.spacetelescope.org/images/heic0516c/ [credit: ESA and NASA]
The Dog Star, Sirius A, and his little companion http://www.spacetelescope.org/images/heic0516a/ [credit: NASA, ESA, H. Bond (STScI) and M. Barstow (University of Leicester)]
The Spirograph Nebula https://www.spacetelescope.org/images/opo0028a/ [credit: NASA/ESA and The Hubble Heritage Team STScI/AURA]
M27, NGC6853, Dumbbell Nebula https://www.noao.edu/image_gallery/html/im0688.html [credit: REU/NOAO/AURA/NSF program]
Soap Bubble Nebula, PN G75.51.7 https://www.noao.edu/image_gallery/html/im1059.html [credit: TA Rector/University of Alaska Anchorage, H. Schweiker/WIYN and NOAO/AURA/ NSF]
Hubble sees the nebula's supersonic escape http://www.spacetelescope.org/images/opo9738a/ [credit: Bruce Balick (University of Washington), Vincent Icke (Leiden University, Netherlands), Garrelt Mellema (University of Stockholm) and NASA /ESA]
Hubble captures NGC 5189 http://www.spacetelescope.org/images/heic1220a/ [credit: NASA, ESA and Hubble Heritage Team (STScI/AURA)]
The toxic legacy of a dying star http://www.spacetelescope.org/images/potw1110a/ [credit: ESA/Hubble & NASA]
Eskimo Nebula http://www.nasa.gov/multimedia/imagegallery/image_feature_762.html [credit: NASA/Andrew Fruchter (STScI)]
Planetary Nebula Abell 39 http://www.noao.edu/image_gallery/html/im0636.html [credit: WIYN/NOAO/NSF]
The Butterfly Hunter http://chandra.harvard.edu/resources/animations/pne.html [credit: (NASA/CXC/April Jubett)]
Red Giant Sun (video) http://www.spacetelescope.org/videos/hst15_red_giant_sun/ [credit: ESA/Hubble (M. Kornmesser & LL Christensen)]
The planetary nebula Abell 33 captured using ESO's Very Large Telescope https://commons.wikimedia.org/wiki/File:The_planetary_nebula_Abell_33_captured_using_ESO%27s_Very_Large_Telescope.jpg [credit: ESO, Wikimedia Commons]
ESO's VLT images the planetary nebula IC 1295 http://www.eso.org/public/usa/images/eso1317a/ [credit: ESO]
Looking down a barrel of gas towards a doomed star http://hubblesite.org/newscenter/archive/releases/1999/01/image/a/ [credit: Hubble Heritage team (AURA/STScI/NASA)]

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