Space & Astronomy
Planets, stars, exoplanets, asteroids and spacecraft.
Datasets
Confirmed exoplanets
Every confirmed planet outside the Solar System in the NASA Exoplanet Archive, with its host star, discovery details, orbit, size, mass and temperature. One row per planet.
Stars visible to the naked eye
Every star in the HYG stellar database with apparent visual magnitude 6.5 or brighter, roughly the limit of naked-eye visibility under a dark sky. One row per star, with name, constellation, brightness, distance, spectral type and position.
Monthly sunspot number and solar radio flux
Monthly mean sunspot number counted by NOAA's Space Weather Prediction Center and the monthly mean 10.7 cm solar radio flux, the two standard measures of solar activity. One row per month.
Moons of the Solar System
Natural satellites of the planets and dwarf planets of the Solar System that have a Wikidata entry, with parent body, discovery date and discoverers, size, mass and orbit. One row per moon.
Robotic space probes
Robotic space probes sent beyond Earth orbit — to the Moon, planets, the Sun, asteroids and comets — that have been launched, including launch failures. One row per spacecraft, with launch date, rocket, launch site, operator and international (COSPAR) designation.
Planets of the Solar System
The eight planets of the Solar System plus the dwarf planet Pluto, with mass, size, density, gravity, rotation, orbit, temperature and number of moons from NASA's Planetary Fact Sheet. One row per body.
Notable entities
A starting point — search to find any of the 100M+ entities in AIDB.
Q405
Q319
Q111
Q525
Q2
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Q25271
Q193
Q321
Q43653