Summary
Russia (minor planet designation: 232 Russia) is a large Main belt asteroid. It is classified as a C-type asteroid and is probably composed of primitive carbonaceous material. It was discovered by Johann Palisa on 31 January 1883 in Vienna, who named it after the country of Russia.
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 31 January 1883 |
| Designations | |
| (232) Russia | |
Named after | Russia |
| A883 BA, 1921 UA 1929 QA, 1954 SV 1970 SN1 | |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 102.35 yr (37382 d) |
| Aphelion | 2.9986 AU (448.58 Gm) |
| Perihelion | 2.1069 AU (315.19 Gm) |
| 2.5527 AU (381.88 Gm) | |
| Eccentricity | 0.17465 |
| 4.08 yr (1489.7 d) | |
Average orbital speed | 18.65 km/s |
| 213.685° | |
| 0° 14m 29.976s / day | |
| Inclination | 6.0659° |
| 152.250° | |
| 52.163° | |
| Physical characteristics | |
| Dimensions | 53.28±1.1 km |
| 21.905 h (0.9127 d) | |
| 0.0494±0.002 | |
| C | |
| 10.25 | |
Photometric observations of this asteroid collected during 2007 show a rotation period of 21.8 ± 0.2 hours with a brightness variation of 0.2 ± 0.02 magnitude.[2] A follow-up study during 2014 discovered that the rotation period varied depending on the phase angle of observation. The measured rotation varied from 22.016 ± 0.004 hours at a phase angle of 21.5 degrees to 17.0, to 21.904 ± 0.002 hours at phase angles between 5.2 degrees and 9.6 degrees. The reason for this variation has to do with the shape of the asteroid.[3]
References edit
- ^ "232 Russia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
- ^ Torno, Steven; Lemke Oliver, Robert; Ditteon, Richard (June 2008), "Asteroid Lightcurve Analysis at the Oakley Southern Sky Observatory - October 2007", The Minor Planet Bulletin, 35 (2): 54–55, Bibcode:2008MPBu...35...54T.
- ^ Pilcher, Frederick (April 2013), "Another Asteroid with a Changing Lightcurve: 232 Russia", The Minor Planet Bulletin, 41 (4): 205, Bibcode:2014MPBu...41..205P.
External links edit
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- 232 Russia at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
- 232 Russia at the JPL Small-Body Database
