21 new moons around Jupiter.

  • Thread starter SpaceGuy
  • Start date
  • #1
20
0
21 new satellites of Jupiter have been found this year. Many are thought to be due to an ancient collision of a larger moon with a comet.

Jupiter has four large moons and dozens of smaller ones (there are 60 satellites known so far). Galileo first discovered the four largest moons of Jupiter, Io, Europa, Ganymede, and Callisto in 1610, using a 20-power telescope; these moons are known as the Galilean moons.

The moons of Jupiter are (in order by their distance from Jupiter): Metis, Adrastea, Amalthea, Thebe, Io, Europa, Ganymede (the biggest), Callisto (the second biggest), Leda (the smallest), Himalia, Lysithea, Elara, Ananke, Carme, Pasiphae, Sinope, and many newly-discovered moons that haven't been named yet.

In the time it took to write this more might have been found.

Jovian Factsheet.
 

Answers and Replies

  • #2
guitarusa2001
on a tv show they asked which planet had the most moons, i answered jupiter, i felt so stupid...it was saturn [b(]
 
  • #3
Phobos
Staff Emeritus
Science Advisor
Gold Member
1,939
6
Originally posted by guitarusa2001
on a tv show they asked which planet had the most moons, i answered jupiter, i felt so stupid...it was saturn [b(]
Don't. You were correct. Jupiter has more discoverd moons than Saturn (61 vs. 31 by my last count). But moons are being discovered fast and furious now...back in Jan. 2001, Saturn did have the most known moons (31 vs. Jupiter's 28 known moons at that time).
 
  • #4
Phobos
Staff Emeritus
Science Advisor
Gold Member
1,939
6
By the way, welcome to Physics Forums, SpaceGuy & guitarusa2001! :smile:
 
  • #5
Kerrie
Staff Emeritus
Gold Member
827
14
being that jupiter and saturn are considered "gas" planets, would they almost have a mini solar system of their own with all of these satellites orbiting around? does jupiter or saturn cause weather patterns for these moons?
 
  • #6
guitarusa2001
Jupiter causes tidal fluctuations on its moons (which is why IO is so hot) its like what the moon does to the earth except on an extemely massive scale
 

Related Threads on 21 new moons around Jupiter.

  • Last Post
Replies
10
Views
1K
  • Last Post
Replies
20
Views
12K
  • Last Post
Replies
14
Views
3K
Replies
39
Views
13K
Replies
2
Views
756
Replies
1
Views
743
Replies
13
Views
2K
  • Last Post
Replies
8
Views
17K
  • Last Post
Replies
6
Views
7K
  • Last Post
Replies
4
Views
4K
Top