[Newsbot]

Title: Meet Pluto's smallest moons: Kerberos and Styx
Category: Science
Posted By: Hyack
Date: 2013-07-02 23:30:26
Canadian

[Jabberwalker]

How large does a satellite have to be tho qualify as a "moon"?

[Gunnair]

Jabberwalker Jabberwalker:

How large does a satellite have to be tho qualify as a "moon"?

Not big at all.

1998QE2, which passed by not long ago, had a satellite 600 meters in diameter.

[raydan]

Jabberwalker Jabberwalker:

How large does a satellite have to be tho qualify as a "moon"?

There is not an established lower limit on what is considered a "moon". Every natural celestial body with an identified orbit around a planet of the Solar System, some as small as a kilometer across, has been identified as a moon.