如果你几个小时内观察, 你可以观察到他的“”月亮”会变动,因为

来源: 2026-01-09 04:13:40 [博客] [旧帖] [给我悄悄话] 本文已被阅读:

它的“月亮”绕木星一圈只有几天(google search):

Comparison: The four Galilean moons
Moon Orbital Radius Orbital Period
Io 422,000 kilometres 1.77 days
Europa 671,000 kilometres 3.55 days
Ganymed 1,070,000 kilometres 7.15 days
Callisto 1,883,000 kilometres 16.69 days