Saturn is the sixth planet from the Sun and the second largest planet in the Solar System, after Jupiter. Saturn is a gas giant with an average radius about nine times that of Earth. While only one-eighth the average density of Earth, with its larger volume Saturn is just over 95 times as massive as Earth. Saturn's interior is probably composed of a core of iron, nickel and rock (silicon and oxygen compounds), surrounded by a deep layer of metallic hydrogen, an intermediate layer of liquid hydrogen and liquid helium and an outer gaseous layer. Electrical current within the metallic hydrogen layer is thought to give rise to Saturn's planetary magnetic field, which is slightly weaker than Earth's and around one-twentieth the strength of Jupiter's. The outer atmosphere is generally bland and lacking in contrast, although long-lived features can appear. Wind speeds on Saturn can reach 1,800 km/h (1,100 mph). Saturn is probably best known for its system of planetary rings, which makes it the most visually remarkable object in the solar system. The rings extend from 6,630 km to 120,700 km above Saturn's equator, average approximately 20 meters in thickness and are composed of 93% water ice with traces of tholin impurities and 7% amorphous carbon. The particles that make up the rings range in size from specks of dust up to 10 m. There are two main theories regarding the origin of the rings. One theory is that the rings are remnants of a destroyed moon of Saturn. The second theory is that…
a) Mercury is a terrestrial planet because it is an inner planet and also made up of heavy planets. It is terrestrial also because it has no natural satellite and no substantial atmosphere.
b) Mercury has thin atmosphere consists of helium, hydrogen, oxygen, sodium, calcium and potassium.
c) Mercury has no moons.
d) Mercury’s diameter is 38% the diameter or earth.
e) Mercury is .38AU from the sun.
f) It takes 87.97 earth days to orbit the sun…
Be able to:
describe how the Galilean moons form a miniature solar system around Jupiter and exhibit a wide range of properties.
describe the nature and detailed structure of Jupiter’s atmosphere, including the belts, zones and Great Red Spot
Be able to list:
the similarities and the differences among the four Jovian planets
Ch 7.3 Saturn & Its Moons
Be able to define:
atmospheric composition of Saturn
nine planets… ever.
When many of us grew up, there were nine planets in the Solar System. It was like a fixed point in our brains.
As kids, memorizing this list was an early right of passage of nerd pride: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto.
But then in 2005, Mike Brown discovered Eris, an icy object thought to be about the same size as Pluto, out beyond its orbit.
That would bring the total number of planets to ten. Right? There's no turning back, textbooks…
suggests there may have once been life on Mars.
H. Mars has had 31 missions in the past, and currently in 2013 has 5 active missions.
1) Mainly made up of gases
2) Has a small rocky core
3) Has rings
1) Huge atmosphere, mostly made up of hydrogen and helium.
2) The atmospheric pressure is 10 times Earth's, so it's 10 atm
1) It had 67 moons
2) It has so many moons because of its…
sun, 300x mass of the earth)
Visted by the Voyagers 1+2 (1979), Cassini (2000, en route to Saturn), New Horizons (2007, en route to Pluto), Galileo (1995-2003)
Jupiter’s Red Spot
Giant Hurricane, at least 300 years old.
Cloud layers form of different compounds at different heights in the atmosphere. Colors we see depend on how deep we see (whether the upper layers are cloudy)
1/3 the mass of Jupiter, but nearly the same diameter (density is less than water).
(forces holding rocks together)
c.ii) Strength of gravity (force pulling rocks down)
4) Escape velocity: Vescape = sq root of (2GM/radius)
5) Orbital velocity: easy way v = d/t = 2pi Rorbit/P
6) Axial Tilt
a) Determine by observing rotation of planetary features ( visually or from spectrum)
7) Eccentricity of orbit
a) Can observe how earth-planet distance changes during orbit of the planet
8) Rotation rate
a) Planets with slower rotation have less weather, less erosion, and a weak magnetic field…
center of the universe, and the sun and planets revolved around it. Tycho Braye discovered new stars that are known as supernovae in 1573. He was well-known throughout his life as an alchemist and astronomer. Kepler contributed the three laws of planetary motion, which helped Isaac Newton later on. These laws were; The planets move around the sun, not in circles, but curve 2. Planets do not move consistently, but in such a way that a line drawn from a planet to the sun spans out an equal area of the…
created with God as its end, and it is there for the service of man.
Similarly Johannes Kepler managed to attempt to realize how to predict orbits, and released his studies and works involving it, which became summed up into the 3 Kepler's laws of planetary motion. Through his equations and formulae and he managed to accurately predict the orbits and motions of the planets in our solar system. He came up with 3 new laws of nature which are:
* Planets move in elliptical motions, with the sun at…
according to the http://nssdc.gsfc.nasa.gov/planetary/lunar/apollo.html website. AS-201 through Apollo 6 were unmanned. AS-201 was the first flight of the Saturn IB and the Block I CSM (Command/ Service Module) and suborbital to the Atlantic ocean. AS-202 was a suborbital flight of CSM to the Pacific ocean. Apollo 4 was the first flight of the Saturn 5 and first Earth orbital CSM flight. Apollo 5 was the first orbital flight of Lunar Module, launched on the Saturn IB and showed ascent and descent movement…
gamma rays to radio waves)?
10.What ranges of the full spectrum of light needs space based telescopes and why?
Chapter 7: Comparative Planetology I: Our Solar System (pp. 159–180)
keywords: (p. 180) Sun
key ideas: (p. 180–2) 1.What are the two major planet types and what distinguishes…