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Dr James O'Donoghue šŖ
interplanetary.bsky.social
did:plc:6r6xpzxahxdjyslkyxenqeta
What's a Sidereal day? Earth completes one full rotation relative to distant stars in 23 hours 56 minutesāthis is a Sidereal Day. But, because of Earth's orbital motion, the Sun appears to shift position each day. To align with the Sun again, Earth needs an extra 4 mins, making a Solar Day 24 hours:
2024-11-18T22:56:57.710Z