(189398) Soemmerring Main-belt Asteroid
Discovered on 7 May 2008 by Karge, S., Kling, R. at Taunus.
Samuel Thomas von Soemmerring (1755-1830) was a German anthropologist, anatomist, paleontologist and inventor. He discovered the macula in the retina of the human eye and invented the electrochemical telegraph. His son Detmar Wilhelm was cofounder of the Physikalischer Verein in 1824 at Frankfurt-am-Main.Naming citation (20100726/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Soemmerring is today
Seen from above the solar system on 2026-10-14: Soemmerring is 2.70 au from the Sun and 2.08 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 189398 |
| Provisional designation | 2008 JG20 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.62 |
| Orbital period | 4.16 years |
| Semi-major axis | 2.59 au |
| Perihelion – aphelion | 2.18 – 3.00 au |
| Eccentricity | 0.158 |
| Inclination | 4.99° |
| Closest distance between its orbit and Earth's (MOID) | 1.16 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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