1928 Summa
| Discovery [1] | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Observatory |
| Discovery date | 21 September 1938 |
| Designations | |
| MPC designation | 1928 Summa |
Named after | Finnish village (Battle of Summa)[2] |
| 1938 SO · 1969 PA | |
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 76.64 yr (27,994 days) |
| Aphelion | 2.9790 AU |
| Perihelion | 1.9737 AU |
| 2.4763 AU | |
| Eccentricity | 0.2029 |
| 3.90 yr (1423.3 days) | |
| 255.61° | |
| Inclination | 4.5754° |
| 180.42° | |
| 157.88° | |
| Earth MOID | 0.9657 AU |
| Physical characteristics | |
| 6.8549 h | |
| B–V = 1.010 | |
| 12.68 | |
|
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1928 Summa, provisional designation 1938 SO, is a main-belt asteroid discovered on September 21, 1938 by Y. Väisälä at Turku Observatory.[1] Its light curve was measured by Richard Binzel and shows a period of 6.8549±0.0006 h and amplitude of 0.18±0.01 mag.[3]
The asteroid is named after the village on the Karelian Isthmus, where the Battle of Summa took place during the Finnish Winter War (1939–1940).[2]
References
- 1 2 3 "JPL Small-Body Database Browser: 1928 Summa (1938 SO)" (2015-05-16 last obs.). Jet Propulsion Laboratory. Retrieved October 2015.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1928) Summa. Springer Berlin Heidelberg. p. 155. ISBN 978-3-540-29925-7. Retrieved October 2015.
- ↑ "Asteroid light curve 01928 (Summa)". Hills Observatory. Retrieved October 2015.
- Binzel, R.P. (1987) Icarus 72, 135-208.
External links
- "1928 Summa (1938 SO)". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 2001928.
- Minor Planet Bulletin, 2013, pp.12–13
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