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An asteroid is a minor planet—an object that is neither a true planet nor a comet—that orbits within the inner Solar System. They are rocky, metallic, or icy bodies with no atmosphere. The size and shape of asteroids vary significantly, ranging from small rubble piles under a kilometer across to Ceres, a dwarf planet almost 1000 km in diameter.
2018 AH is a sub-kilometer asteroid, classified as near-Earth object of the Apollo group, approximately 100 m (300 ft) in diameter. It was first observed on 4 January 2018, by the Asteroid Terrestrial-impact Last Alert System (ATLAS) on Mauna Loa and quickly followed-up by many other surveys, with precovery observations found from Pan-STARRS ...
101955 Bennu. Gambar mosaik asteroid Bennu yang tersusun atas 12 gambar PolyCam hasil pengamatan wahana antariksa OSIRIS-REx pada 2 Desember 2018. OSIRIS-REx saat itu berjarak 24 km (15 mi) dari asteroid Bennu. Penemuan [1] Ditemukan oleh. LINEAR. Situs penemuan. Lincoln Lab's ETS. Tanggal penemuan.
Asteroid, disebut juga planet minor atau planetoid, adalah benda berukuran lebih kecil daripada planet, tetapi lebih besar daripada meteoroid, umumnya terdapat di bagian dalam Tata Surya (lebih dalam dari orbit planet Neptunus ). Asteroid berbeda dengan komet dari penampakan visualnya. Komet menampakkan koma ("ekor") sementara asteroid tidak.
Asteroid family#Background asteroid; This page is a redirect. ... This page was last edited on 30 May 2018, at 00:39 (UTC).
A list of known near-Earth asteroid close approaches less than 1 lunar distance (0.0025696 AU (384,410 km; 238,860 mi)) from Earth in 2018. [note 1] For reference, the radius of Earth is approximately 0.0000426 AU (6,370 km; 3,960 mi) or 0.0166 lunar distances.
