01
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Guides
What Makes an Asteroid Potentially Hazardous
Not every near-earth asteroid is a threat. NASA applies three hard thresholds - size, how close it c
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The Giant Planets' Trojans and the Asteroid Belt
More than a million asteroids live in the main belt between Mars and Jupiter. A subset is locked int
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Comets: The Solar System's Ice Messengers
Of the thousands of catalogued comets, most live far beyond Neptune and only dip inward on long elli
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What the Data Quality Column Actually Means
Every SpaceAtlas orbital record carries a quality flag and an observation count. Learn how to read t
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Reading the Orbits: Kepler Elements Made Simple
Asteroids and comets move on ellipses, and every ellipse can be pinned down by just six numbers. Thi
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How Near-Earth Asteroids Are Classified
The four families of near-Earth asteroids - Apollo, Amor, Atira and Aten - are defined purely by whe
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02
Categories →
Categories
03
Collections →
Collections
Largest near-Earth asteroids
Potentially hazardous asteroids
Largest comets by diameter
Closest perihelia
Latest discovered
04
Rankings →
Largest Objects
Ceres
Diameter: 939 km
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Vesta
Diameter: 522 km
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Pallas
Diameter: 513 km
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Hygiea
Diameter: 407 km
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Interamnia
Diameter: 306 km
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Europa
Diameter: 303 km
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Davida
Diameter: 270 km
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Euphrosyne
Diameter: 267 km
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05
Near-Earth Objects →
Near-Earth Objects
Ganymed
Perihelion: 1.243 AU
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Don Quixote
Perihelion: 1.25 AU
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Eros
Perihelion: 1.133 AU
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Eric
Perihelion: 1.102 AU
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Ivar
Perihelion: 1.123 AU
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Sisyphus
Perihelion: 0.875 AU
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53319
Perihelion: 0.976 AU
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52762
Perihelion: 0.837 AU
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06
Comets →
Comets
Aarseth-Brewington
Discovered: —
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Abe
Discovered: —
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Abell
Discovered: —
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Abell
Discovered: —
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Africano
Discovered: —
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Africano
Discovered: —
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About this dataset
About this dataset
Data source:
NASA JPL Small-Body Database (SBDB)
· NASA CNEOS
· Wikipedia / Wikimedia Commons.
Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.
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