Inner Planets 2024 - 02 - 24 by Tonal Drift published on 2024-02-23T01:07:20Z The inner planets have orbital periods that are VERY ROUGHLY in the ratio : Mercury = 1 Venus = 2.5 Earth = 4 Mars = 8 Comment by Jesús Bellota Cool !!!! 2024-02-23T15:48:41Z