4230 Van Den Bergh (9786137853184)

4230 Van den Bergh (1973 ST1) is an outer main-belt asteroid discovered on September 19, 1973 by Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels at Palomar Observatory. It is named for Sidney Van den Bergh, Dutch Canadian astronomer and former director of the Dominion Astrophysical Observatory. 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.

Product details

• Format Paperback | 144 pages
• Dimensions 152 x 229 x 9mm | 222g
• Publication date 28 Oct 2011
• Publisher Plor
• Publication City/Country United States
• Language English
• Edition Statement Aufl.
• ISBN10 6137853187
• ISBN13 9786137853184

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