List of articles in "Planet" category - Page 1177

243 Ida (/ˈaɪdə/ EYE-də) is an asteroid in the Koronis family of the asteroid belt. It was discovered on 29 September 1884 by Johann Palisa and named after a nymph […]

Pallas minor-planet designation 2 Pallas is the second asteroid to have been discovered (after Ceres) and one of the largest in the Solar System. It is estimated to comprise 7% […]

Amalthea (/æməlˈθiːə/ am-əl-THEE-ə; Greek: Αμάλθεια) is the third moon of Jupiter in order of distance from the planet. It was discovered on September 9 1892 by Edward Emerson Barnard and […]

16 Psyche is one of the ten most massive main-belt asteroids. It is over 200 kilometers in diameter and contains a little less than 1% of the mass of the […]

253 Mathilde /məˈtɪldə/ is a main-belt asteroid about 50 km in diameter that was discovered by Johann Palisa in 1885. It has a relatively elliptical orbit that requires more than […]

4179 Toutatis (/tuːˈtɑːtɨs/ too-TAH-tis) is an Apollo Alinda and Mars-crosser asteroid with a chaotic orbit produced by a 3:1 resonance with the planet Jupiter a 1:4 resonance with the planet […]

3753 Cruithne (/kruːˈiːnjə/ or /ˈkrʊnjə/) is an Aten asteroid in orbit around the Sun in 1:1 orbital resonance with Earth making it a co-orbital object. It is a minor planet […]

The asteroid 4769 Castalia (/kɨˈsteɪliə/ kə-STAY-lee-ə; previously known by the provisional designation 1989 PB) was the first asteroid to be modeled by radar imaging. It is an Apollo Mars- and […]

52 Europa is one of the larger asteroids in the asteroid belt having an average diameter of around 315 km. The body is not round but is shaped like a […]

Vesta minor-planet designation 4 Vesta is one of the largest asteroids in the Solar System with a mean diameter of 525 kilometres (326 mi). It was discovered by Heinrich Wilhelm […]