Thread: Interesting extrasolar planet discoveries
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Old 19-July-2007, 02:07 PM
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Originally Posted by Kullat Nunu View Post
Hubble Space Telescope times-series photometry of the planetary transit of HD189733: no moon, no rings, starspots

Well, nobody really expected them to exist as any orbit would be unstable so close to the star. The planet was detected transiting huge starspots, which is very cool.
Only Earth sized moons were disproven.
There still could be smaller moons close to the planet.
If 51 Pegasi, which is less massive than Jupiter and on similar orbit has a hill sphere of around 410000 km, then this giant may have an inventory of some asteroid moons
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