21985 ejna
Asteroid, Asteroid Belt, Asteroid Family, Solar System, Trojan (Astronomy)
Herausgegeben: Felicie, Adélaïde Laurie
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 21985 ejna is a main belt asteroid with an orbital period of 2011.2664442 days (5.51 years).The asteroid was discovered on December 2, 1999. Asteroids (from Greek 'star' and 'like, in form') are a class of Small Solar System Bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones. These terms have historically been applied to any astronomical object orbiting the Sun that did not show the disk of a planet and was not observed t...
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 21985 ejna is a main belt asteroid with an orbital period of 2011.2664442 days (5.51 years).The asteroid was discovered on December 2, 1999. Asteroids (from Greek 'star' and 'like, in form') are a class of Small Solar System Bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones. These terms have historically been applied to any astronomical object orbiting the Sun that did not show the disk of a planet and was not observed to have the characteristics of an active comet, but as small objects in the outer Solar System were discovered, their volatile-based surfaces were found to more closely resemble comets, and so were often distinguished from traditional asteroids.
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