(189398) OEM ring

from Wikipedia, the free encyclopedia
Asteroid
(189398) Soemmerring
Properties of the orbit ( animation )
Epoch:  4th September 2017 ( JD 2,458,000.5)
Orbit type Middle main belt
Major semi-axis 2.587  AU
eccentricity 0.158
Perihelion - aphelion 2.178 AU - 2.996 AU
Inclination of the orbit plane 5 °
Length of the ascending node 125.6 °
Argument of the periapsis 182.3 °
Sidereal period 4.16 a
Mean orbital velocity 18.40 km / s
Physical Properties
Absolute brightness 16.5 mag
history
Explorer Stefan Karge and Rainer Kling
Date of discovery May 7, 2008
Another name 2008 JG 20
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.

(189398) Soemmerring is an asteroid of the main middle belt , which is located between Mars and Jupiter .

It was discovered on May 7, 2008 by the German amateur astronomers Stefan Karge and Rainer Kling from the Hans-Ludwig-Neumann-Observatory ( IAU-Code B01) on the Kleiner Feldberg in the Taunus .

The asteroid was named on July 26, 2010 in honor of Samuel Thomas von Soemmerring (1755–1830), a German anatomist , anthropologist , paleontologist and inventor . I.a. he discovered the yellow spot in the retina of the human eye and invented the electrochemical telegraph . Stefan Karge and Rainer Kling are members of the Physikalischer Verein - Society for Education and Science , which annually awards the Samuel Thomas von Soemmerring Prize for amateur astronomical work.

See also

Web links

Individual evidence

  1. JPL Small-Body Database: 189398 Soemmerring. In: NASA . Retrieved July 21, 2017 .
  2. Minor Planet Circulars # 71352. (PDF) In: Minor Planet Center . July 26, 2010, accessed July 21, 2017 .