Talk:Cassini Regio

Astronomy: Astronomical objects / Solar System Low‑importance

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Define "leading half"[edit]

I can only find the phrases "leading half" and "trailing half" in regards to Iapetus. Nowhere can I find out what that means. There's a bright half, a dark half, a near side, and a far side. I try to guess, then search the guess. I have even searched a glossary of astronomical terms. Nothing so far. Someone please put it in parentheses so we can understand what you mean. Thetrellan (talk) 18:20, 9 October 2018 (UTC)[reply]