Astronomy Chapter 7 Summary
Rebecca McKenney
Introduction to Astronomy
Mrs. Alburg
12 April 2017
Chapter 7 Notes If all the mass of the satellites, asteroids, meteoroids, comets, and planets (besides Jupiter) in the solar system were combined and doubled two and half times, you will get the mass of Jupiter. Both Jupiter and Saturn have “colorful bands that extend around” it’s respected “equator.” (Slater) The dark reddish bands of Jupiter are called belts, while the lighter color bands are called zones. The spots that are found on Jupiter and Saturn helps astronomers determine the speed of the planet’s rotation. Differential rotation “is the rotation of a nonrigid object in which parts adjacent to each other at a given time do not always stay close together.” …show more content…
(Slater) The three main elements in Uranus’s atmosphere are hydrogen (82.5%), helium (15.2%), and methane (〖CH〗_4)(2.3%). Uranus appears to be greenish-blue because methane absorbs longer wavelengths of visible light. So when sunlight strikes the methane, the upper atmosphere loses it colors of red and yellow. Uranus’s atmosphere lacks water. The three main elements of Neptune’s atmosphere are the same as Uranus’s atmosphere, but the percentages are different. For Neptune hydrogen makes up 79%, helium 18%, and methane 3% of the atmosphere. The mantel of both Uranus and Neptune is made up of liquid water and ammonia. The sand that is found on Titian, Saturn’s largest satellite, is made up of “small particles of water ice combined with molecules that have fallen from” its atmosphere. (Slater) The sand also gives the terrain of Titian color. When visiting Triton, Neptune’s largest satellite, the spacecraft Voyager 2 saw something like geysers which ejected a dark material. It is thought that these plumes get their energy from the sunlight that warms the satellite’s
Introduction to Astronomy
Mrs. Alburg
12 April 2017
Chapter 7 Notes If all the mass of the satellites, asteroids, meteoroids, comets, and planets (besides Jupiter) in the solar system were combined and doubled two and half times, you will get the mass of Jupiter. Both Jupiter and Saturn have “colorful bands that extend around” it’s respected “equator.” (Slater) The dark reddish bands of Jupiter are called belts, while the lighter color bands are called zones. The spots that are found on Jupiter and Saturn helps astronomers determine the speed of the planet’s rotation. Differential rotation “is the rotation of a nonrigid object in which parts adjacent to each other at a given time do not always stay close together.” …show more content…
(Slater) The three main elements in Uranus’s atmosphere are hydrogen (82.5%), helium (15.2%), and methane (〖CH〗_4)(2.3%). Uranus appears to be greenish-blue because methane absorbs longer wavelengths of visible light. So when sunlight strikes the methane, the upper atmosphere loses it colors of red and yellow. Uranus’s atmosphere lacks water. The three main elements of Neptune’s atmosphere are the same as Uranus’s atmosphere, but the percentages are different. For Neptune hydrogen makes up 79%, helium 18%, and methane 3% of the atmosphere. The mantel of both Uranus and Neptune is made up of liquid water and ammonia. The sand that is found on Titian, Saturn’s largest satellite, is made up of “small particles of water ice combined with molecules that have fallen from” its atmosphere. (Slater) The sand also gives the terrain of Titian color. When visiting Triton, Neptune’s largest satellite, the spacecraft Voyager 2 saw something like geysers which ejected a dark material. It is thought that these plumes get their energy from the sunlight that warms the satellite’s