(11547) Griesser

from Wikipedia, the free encyclopedia
Asteroid
(11547) Griesser
Properties of the orbit ( animation )
Orbit type Main belt asteroid
Major semi-axis 2.3420  AU
eccentricity 0.2215
Perihelion - aphelion 1.8233 AU - 2.8607 AU
Inclination of the orbit plane 2.031 °
Sidereal period 3,584 a
Mean orbital velocity 19.46 km / s
Physical Properties
Medium diameter 2,109 km
Albedo 0.397
Rotation period H
Absolute brightness 14,857 likes
history
Explorer Freimut Börngen
Date of discovery October 31, 1992
Another name 1992 UP 8
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items.

(11547) Griesser is an asteroid that was discovered on October 31, 1992 by the professional astronomer Dr. Freimut Börngen was discovered in Tautenburg near Jena .

It bears the name of Markus Griesser , the longtime director of the Eschenberg observatory in Winterthur ( Switzerland ). Griesser is an internationally recognized observer of minor planets close to the earth. To date, he has contributed to the first orbit determination of around 300 newly found Near Earth Asteroids and discovered ten asteroids himself from the Eschenberg observatory in Winterthur between 2001 and 2009. Nine of them have now been named.

See also

Web links

Individual evidence

  1. a b Measurement by NEOWISE 2012, bibcode : 2012ApJ ... 759L ... 8M