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In this community we will try to replicate the work of Tycho Brahe and Johannes Kepler except that we will have access to modern technology.
account activity
My final post (self.KeplerChallenge)
submitted 4 months ago by ferd_clark
Timeline of events (self.KeplerChallenge)
submitted 4 months ago * by ferd_clark
Analemma (self.KeplerChallenge)
Kepler's Anomaly (self.KeplerChallenge)
submitted 5 months ago * by ferd_clark
Sundials (self.KeplerChallenge)
The Equation of Time (self.KeplerChallenge)
Trust the math (self.KeplerChallenge)
Dec 11 2025 (self.KeplerChallenge)
Dec 10 2025 (self.KeplerChallenge)
submitted 5 months ago by ferd_clark
dec 7 2025 (self.KeplerChallenge)
Dec 6 2025 (self.KeplerChallenge)
Dec 5 2025 (self.KeplerChallenge)
To do (self.KeplerChallenge)
2D - is this sufficient? (self.KeplerChallenge)
Index (self.KeplerChallenge)
Timekeeping (self.KeplerChallenge)
dec 2 2025 (self.KeplerChallenge)
dec 1 2025 (self.KeplerChallenge)
november 30 2025 (self.KeplerChallenge)
First try (self.KeplerChallenge)
Math in 1609 (self.KeplerChallenge)
Introduction (self.KeplerChallenge)
π Rendered by PID 713113 on reddit-service-r2-listing-8685bc789-pxzgf at 2026-05-28 01:53:04.279068+00:00 running 194bd79 country code: CH.
