ASTR 101 Lecture Notes - Lecture 23: Earth Mass, Ellipse, Galilean Moons

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Converts 4 million tons of mass into energy each second. Large iron core: 425 celsius during the day. Rader view of a twin peaked volcano. Hellish conditions die to an extreme greenhouse effect. Even hotter than mercury: 470 celsius at day and night. The only surface liquid water in the solar system. Cloud surface temp = 125k (-148 celcius) The core is a different story: very hot, 24,000 celcius. 67 moons: (cid:272)a(cid:374) (cid:271)e as i(cid:374)teresti(cid:374)g as pla(cid:374)ets the(cid:373)selves, espe(cid:272)ially jupiter"s four galilea(cid:374) moons. Possible subsurface oceans largest moon in the solar system large (cid:862)i(cid:272)e (cid:271)all(cid:863) Many moons (at least 62), including cloudy titan. Made of hydrogen and helium and hydrogen compounds (water ammonia) Similar to uranus (except for axis tilt) Cloud / surface temp = 60k (-213 celsius) You can see up to saturn with the naked eye. Orbits are ellipse in shape with the sun at one focal point.

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