This diagram shows various asteroids in the solar system and their sizes

Asteroids

Astronomy Wiki

This diagram shows various asteroids in the solar system and their sizes
Asteroids in the solar system and their apparent size. (Image courtesy of NASA)

Asteroids are small, irregular shaped rocky remnants, between 1/2 km and 600 km in diameter, left over from the formation of the solar system 4.6 billion years ago.

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Eridanus

Eridanus the River flows across the night sky
Eridanus the River is one of astronomy’s 88 recognized constellations

Eridanus is one of the 88 recognized modern constellations. Ancient Greek name for the Po River and sixth largest constellation.

 

 

 

 

Can NASA astronomers detect extraterrestrial moons orbiting distant suns? Read this article to find out https://spaceshipearth1.wordpress.com/2013/12/31/searching-for-extraterrestrial-moons/.

 

Read about the latest discovery in the search for life beyond Earth https://spaceshipearth1.wordpress.com/2013/12/25/the-search-for-life-beyond-earth-takes-a-turn-at-jupiter/.

 

Read about the latest images of the solar system sent back by the Cassini spacecraft https://spaceshipearth1.wordpress.com/2013/12/22/cassini-spacecraft-show-views-of-the-solar-system-in-natural-color/.