(5209) 1989 CW1
Encyclopedia
1989 CW1 is a Jupiter Trojan minor planet
. It was discovered by Tsutomu Seki
at Geisei Observatory in Kōchi
, Japan
, on February 13, 1989.
Minor planet
An asteroid group or minor-planet group is a population of minor planets that have a share broadly similar orbits. Members are generally unrelated to each other, unlike in an asteroid family, which often results from the break-up of a single asteroid...
. It was discovered by Tsutomu Seki
Tsutomu Seki
is a Japanese astronomer, born in Kōchi, Japan.He has discovered a number of comets, including the celebrated bright C/1965 S1 .He has also discovered a large number of asteroids, including the Amor asteroid 1992 JE and the Trojan asteroid .Many of his discoveries are named after famous sites in...
at Geisei Observatory in Kōchi
Kochi, Kochi
is the capital city of Kōchi Prefecture on Shikoku island of Japan.Kōchi is the main city of the prefecture with over 40% of its population. As of May 31, 2008, the city had an estimated population of 340,515 and a density of...
, Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
, on February 13, 1989.