SpaceAtlas
用JPL轨道数据探索小行星、彗星和近地天体。
天体总数
46,972
近地天体
42,837
潜在危险
15
有图片
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
分类
最大天体
Ceres
直径: 939 km
Vesta
直径: 522 km
Pallas
直径: 513 km
Hygiea
直径: 407 km
Interamnia
直径: 306 km
Europa
直径: 303 km
Davida
直径: 270 km
Euphrosyne
直径: 267 km
近地天体
Ganymed
近日点: 1.243 AU
Don Quixote
近日点: 1.25 AU
Eros
近日点: 1.133 AU
Eric
近日点: 1.102 AU
Ivar
近日点: 1.123 AU
Sisyphus
近日点: 0.875 AU
53319
近日点: 0.976 AU
52762
近日点: 0.837 AU