Vocab/Beyond Neptune
Density
a physical property of matter that describes the mass in a unit of volume
What is Jupiter's size in the solar system
Biggest planet; 2nd biggest object in the solar system after the sun
What is the most notable feature of Saturn?
It's GIANT ring system 😲
What is different about the tilt of Uranus?
It's tilted ~90 degrees on its side
Neptune was the first planet discovered using _____
MATH! 😺 due to gravitational effects seen on Uranus, Neptune was predicted using math by Urbain Le Verrier to be in orbit beyond Uranus, and his prediction was proven correct in 1846
Gas Planet
a planet that has a deep atmosphere and no rocky surface
What doe GRS stand for? And what is it?
What is unique about the density of Saturn?
It's the least dense planet in the solar system; it can float in water!
Uranus was not one of the planets known to ancient astronomers. How was Uranus discovered?
Discovered using a telescope by Sir William Herschel in 1781
What is Neptune's atmosphere made of?
Mainly hydrogen and helium, just like the other gas planets. Neptune also has some methane and ammonia in it's atmosphere
scale
The level of measurement being used
The four large moons of Jupiter; the first moons discovered in the solar system outside of earth's moon; discovered by Galileo Galilei.
Io, Ganymede, Callisto, Europa
What is the largest and most complex moon of Saturn?
Titan
How many moons does Uranus have? How many rings does Uranus have?
At least 27 moons; as of now we have seen 13 rings
How many moons does Neptune have? What about rings around Neptune?
What are the two regions beyond beyond Neptune?
The Kuiper Belt; The Oort Cloud
Does Jupiter have a ring system?
Yes, but it is very faint and are not easy to see
What are the rings of Saturn made of? Are the solid or grainy?
Ice and rock and dust; they are not solid they are grainy
How does Uranus' gravitational pull compare to the other gas planets?
Uranus has the weakest gravitational pull of all the gas planets, but still has stronger gravity than any of the terrestrial planets
How many spacecraft have visited Neptune to study it up close?
Just one! Voyager 2 in 1989
How far away is the Kuiper Belt? How far away is the Oort Cloud?
Kuiper Belt: 30-55 A.U.
Oort Cloud: 5,000-100,000 A.U.
A.U. stands for Astronomical Unit and is equal to ~150,000,000 km. Can you multiply to figure out how many km away the Kuiper Belt and Oort Cloud are?
What is the orbital period of Jupiter? What is the rotational period of Jupiter?
12 earth years
~10 hours
What is the orbital period of Saturn? What is the rotational period of Saturn?
29.5 earth years; ~10.5 hours
What is the orbital period of Uranus? What is the rotational period of Uranus?
84 earth years; ~17 hours
What is the orbital period of Neptune? What is the rotational period of Neptune?
~165 earth years; ~16 hours