Precovery
Precovery
Process of finding the image of an object in images predating its discovery.
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Readers' pathsAug 2026 – Oct 2026
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Valetudo (moon)
Outer moon of Jupiter.
25%
(29075) 1950 DA
Most hazardous risk–listed near-Earth asteroid.
10%
Uranus
Seventh planet from the Sun.
5.4%
2060 Chiron
Ringed centaur and comet.
5%
2 Pallas
Third-largest asteroid.
4.6%
69230 Hermes
Sub-kilometer sized asteroid and binary system on an eccentric orbit.
3.9%
Ganymede (moon)
Largest moon of Jupiter.
3.2%
Exoplanet
Planet outside of the Solar System.
2.6%
Orcus (dwarf planet)
Trans-Neptunian dwarf planet.
2.4%
Canada–France–Hawaii Telescope
Astronomical observatory.
2.4%
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Exoplanet
Planet outside of the Solar System.
20%
Halley's Comet
Periodic comet.
18%
Pluto
Largest dwarf planet in the Solar System.
18%
Eris (dwarf planet)
Most massive dwarf planet.
7.9%
Haumea
Dwarf planet with a ring and two moons.
4.8%
Comet Hale–Bopp
Great Comet of 1997.
4%
Sedna (dwarf planet)
Distant body in the outer Solar System.
3.5%
Comet Swift–Tuttle
Halley-type comet and parent body of the Perseid meteors.
3.1%
99942 Apophis
Potentially hazardous near-Earth asteroid.
2.4%
3I/ATLAS
Interstellar comet in 2025.
2%