Orbits and Masses for 156 Companions from Combined Astrometry and Radial Velocities, and a Validation of Gaia Non-Single-Star Solutions
Qier An et al 2025 ApJS 280 61 Using precise astrometry from Hipparcos and Gaia, researchers derived masses and orbits for 111 stellar, 12 brown dwarf, and 33 planetary companions around…
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MPEC 2025-N12 : 3I/ATLAS = C/2025 N1 (ATLAS)
We are the official body that deals with astrometric observations and orbits of minor planets (asteroids) and comets.
minorplanetcenter.net·1y ago
HD 127195 b
HD 127195 b is a gas giant exoplanet that orbits a K-type star. Its mass is 0.67 Jupiters, it takes 1.5 years to complete one orbit of its s
HD 127195 b
HD 127195 b is a gas giant exoplanet that orbits a K-type star. Its mass is 0.67 Jupiters, it takes 1.5 years to complete one orbit of its s
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