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- Right ascension (abbreviated RA; symbol α) is the angular distance of a particular point measured eastward along the celestial equator from the Sun at...14 KB (1,371 words) - 03:45, 27 October 2023
- Lunar theory attempts to account for the motions of the Moon. There are many small variations (or perturbations) in the Moon's motion, and many attempts...51 KB (6,838 words) - 17:22, 17 August 2023
- The DirecTV satellite fleet is a group of communications satellites located at various geostationary orbits that DirecTV uses for their satellite television...28 KB (2,586 words) - 02:32, 3 February 2024
- Seasonal lag is the phenomenon whereby the date of maximum average air temperature at a geographical location on a planet is delayed until some time after...8 KB (998 words) - 10:42, 9 April 2024
- Hayabusa Mk2 (Hayabusa Mark2, はやぶさ Mk2, "Peregrine Falcon Mark Two") was a proposed Japan Aerospace Exploration Agency (JAXA) space mission aimed at visiting...14 KB (1,852 words) - 14:52, 1 October 2023