Astronomy

Revival

 Revival
Answer more than 30 days after a question was asked as first answer scoring 2 or more. This badge can be awarded multiple times.

earned this badge 3 times.
First observation that the Sun and Jupiter (and friends) move around a common barycenter?
Awarded Aug 13, 2021 at 1:27
VSOP for exosatellites? (Io, Titan, Ariel, etc)
Awarded Aug 19, 2019 at 16:10
Error when calculating Alt/Az from Ra/Dec
Awarded Aug 19, 2019 at 8:05

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