Astronomy:232 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 | |
| Minor planet category | Main belt |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 102.35 yr (37382 d) |
| |{{{apsis}}}|helion}} | 2.9986 astronomical unit|AU (448.58 Gm) |
| |{{{apsis}}}|helion}} | 2.1069 AU (315.19 Gm) |
| 2.5527 AU (381.88 Gm) | |
| Eccentricity | 0.17465 |
| Orbital period | 4.08 yr (1489.7 d) |
| Average Orbital speed | 18.65 km/s |
| Mean anomaly | 213.685° |
| Mean motion | 0° 14m 29.976s / day |
| Inclination | 6.0659° |
| Longitude of ascending node | 152.250° |
| 52.163° | |
| Physical characteristics | |
| Dimensions | 53.28±1.1 km |
| Rotation period | 21.905 h (0.9127 d) |
| Geometric albedo | 0.0494±0.002 |
| C | |
| Absolute magnitude (H) | 10.25 |
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 .
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
- ↑ "232 Russia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=232;cad=1.
- ↑ 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
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- 232 Russia at AstDyS-2, Asteroids—Dynamic Site
- 232 Russia at the JPL Small-Body Database
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