SpaceAtlas
用JPL軌道數據探索小行星、彗星和近地天體。
天體總數
46,972
近地天體
42,837
潛在危險
15
有圖片
0
指南
What Makes an Asteroid Potentially Hazardous
Not every near-earth asteroid is a threat. NASA applies three hard thresholds -
The Giant Planets' Trojans and the Asteroid Belt
More than a million asteroids live in the main belt between Mars and Jupiter. A
Comets: The Solar System's Ice Messengers
Of the thousands of catalogued comets, most live far beyond Neptune and only dip
What the Data Quality Column Actually Means
Every SpaceAtlas orbital record carries a quality flag and an observation count.
Reading the Orbits: Kepler Elements Made Simple
Asteroids and comets move on ellipses, and every ellipse can be pinned down by j
How Near-Earth Asteroids Are Classified
The four families of near-Earth asteroids - Apollo, Amor, Atira and Aten - are d
分類
最大天體
Ceres
直徑: 939 km
Vesta
直徑: 522 km
Pallas
直徑: 513 km
Hygiea
直徑: 407 km
Interamnia
直徑: 306 km
Europa
直徑: 303 km
Davida
直徑: 270 km
Euphrosyne
直徑: 267 km
近地天體
Ganymed
近日點: 1.243 AU
Don Quixote
近日點: 1.25 AU
Eros
近日點: 1.133 AU
Eric
近日點: 1.102 AU
Ivar
近日點: 1.123 AU
Sisyphus
近日點: 0.875 AU
53319
近日點: 0.976 AU
52762
近日點: 0.837 AU