Now that we’re done with the planets, asteroid belt, and comets, we’re heading to the outskirts of the solar system. Out past Neptune are vast reservoirs of icy bodies that can become comets if they get poked into the inner solar system. The Kuiper Belt is a donut shape aligned with the plane of the solar system; the scattered disk is more eccentric and is the source of short-period comets, and the Oort Cloud which surrounds the solar system out to great distances is the source of long-period comets. These bodies all probably formed closer to the Sun and got flung out to the solar system’s suburbs by gravitational interactions with the outer planets.
Check out the Crash Course Astronomy solar system poster here: store.dftba.com/products/crash...
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Chapters:
Introduction: Where Do Comets Come From? 00:00
Kuiper Belt, Scattered Disk, and Oort Cloud 2:52
Long-Period Comets come from the Oort Cloud 4:03
Short-Period Comets come from the Scattered Disk 4:27
Pluto, Plutinos, and other Kuiper Belt Objects 4:47
Oort Cloud Objects 8:25
Review 10:38
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PHOTOS/VIDEOS
HD Long Exposure Star Timelapse vimeo.com/34172172 [credit: Jeffrey Beach, Beachfront B-Roll]
Fine Structure in the Comet’s Jets blogs.esa.int/rosetta/2015/01/... en.wikipedia.org/wiki/Protopla... [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA]
Artist's impression of a protoplanetary disk. [credit: ESO/L. Calçada - ESO]
Creating Gas Giants svs.gsfc.nasa.gov/cgi-bin/deta... [credit: NASA's Goddard Space Flight Center]
What is a Sungrazing Comet? svs.gsfc.nasa.gov/cgi-bin/deta... [credit: NASA's Goddard Space Flight Center]
Pluto/Neptune Orbit www2.jpl.nasa.gov/files/images... [credit: NASA]
1992 QB1 solarsystem.nasa.gov/multimedi... [credit: ESO]
Eris apod.nasa.gov/apod/ap060918.html [credit: W. M. Keck Observatory]
Moons of Pluto en.wikipedia.org/wiki/Kerberos... [credit: NASA, ESA, and M. Showalter (SETI institute)]
New Horizons Approach pluto.jhuapl.edu/common/conten... [credit: JHUAPL]
Moon svs.gsfc.nasa.gov/vis/a000000/... [credit: NASA/Goddard Space Flight Center Scientific Visualization Studio]
Pluto solarsystem.nasa.gov/multimedi... [credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute]
Sedna’s Orbit commons.wikimedia.org/wiki/Fil... [credit: NASA]
Artist’s Conception of Kuiper Belt en.wikipedia.org/wiki/File:14-... [credit: NASA, Wikimedia Commons]
Kuiper Belt World (video) planetquest.jpl.nasa.gov/video/41 [credit: NASA Kepler Mission/Dana Berry]
Pluto Discovery Plates azmemory.azlibrary.gov/cdm/sin... [credit: Clyde Tombaugh, Lowell Observatory]
25 июн 2024