| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg |
| Discovery date | 18 January 1922 |
| Designations | |
| MPC designation | (972) Cohnia |
| Pronunciation | /ˈkoʊniə/ |
| Alternative designations | 1922 LK |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 110.24 yr (40266 days) |
| Aphelion | 3.7748 AU (564.70 Gm) |
| Perihelion | 2.3388 AU (349.88 Gm) |
| Semi-major axis | 3.0568 AU (457.29 Gm) |
| Eccentricity | 0.23487 |
| Orbital period (sidereal) | 5.34 yr (1952.1 d) |
| Mean anomaly | 294.244° |
| Mean motion | 0° 11 3.912 / day |
| Inclination | 8.3709° |
| Longitude of ascending node | 281.530° |
| Argument of perihelion | 93.837° |
| Physical characteristics | |
| Mean radius | 37.825±0.95 km |
| Synodic rotation period | 18.472 h (0.7697 d) |
| Geometric albedo | 0.0489±0.003 |
| Absolute magnitude (H) | 9.50 |
972 Cohnia is a minor planet orbiting the Sun, one of several such in the asteroid belt. It was discovered on 18 January 1908 by a team in Heidelberg led by Max Wolf. In 2007, lightcurve data showed that Cohnia rotates every 18.472 ± 0.004 hours.
It is named after the German astronomer Fritz Cohn.
References
- "972 Cohnia (1922 LK)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 2 May 2016.
- Buchheim, Robert K. - Lightcurves for 122 Gerda, 217 Eudora, 631 Phillipina, 670 Ottegebe, and 972 Cohnia (2007)
External links
- 972 Cohnia at AstDyS-2, Asteroids—Dynamic Site
- 972 Cohnia at the JPL Small-Body Database
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