Can a star orbit a planet

1.34K viewsOtherPlanetary Science

Can a star orbit a planet

In: Planetary Science

25 Answers

Anonymous 0 Comments

A lot of the discussion here is pitched toward naturally occurring systems and the vague line drawn between super-Jupiters and Brown dwarf stars.

There may be a more nuanced discussion that could be had by astrophysicists and materials scientists. Specifically:
– what would be the theoretical minimum mass for a star of any kind without the limits imposed by natural formation (hand-picked materials and starting configuration)
– what is the theoretical maximum planetary mass (again without natural formation limits)

With regards to the star, are we talking brown dwarf still? White dwarf? Is a white dwarf even a star if fusion is long since over and done? Black dwarf? Would a black dwarf be considered a star?

With regards to the planet would the most massive really be a super-Jupiter? Could a solid chunk of iron reach a greater mass since it can’t fuse (I think)? What is the best material/mix for the planet mass taking degeneracy pressure into account for the upper mass limit? Is iron a prime candidate, or would alternative materials permit it to get more massive?

You are viewing 1 out of 25 answers, click here to view all answers.