0
$\begingroup$

Do only gas planets have discs or even rocky planets may have them orbiting around? If rocky planets are great in volume is then a higher chance for an orbiting disc to exist in the planetary orbit?

$\endgroup$
2
  • $\begingroup$ Are you asking about ring systems? $\endgroup$
    – PM 2Ring
    Commented Jul 14, 2023 at 2:38
  • $\begingroup$ Even a rocky planet is bigger than you need. At least one dwarf planet has multiple rings. The moon Iapetus may have had one. $\endgroup$
    – J.G.
    Commented Jul 14, 2023 at 15:20

1 Answer 1

0
$\begingroup$

There is no known reason why a rocky (or terrestrial) planet cannot have a ring system, although their smaller size and lower gravity makes this less likely for a terrestrial planet than for a gas giant. According to the Wikipedia article on ring systems:

It is also predicted that Phobos, a moon of Mars, will break up and form into a planetary ring in about 50 million years. Its low orbit, with an orbital period that is shorter than a Martian day, is decaying due to tidal deceleration.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.