232 Russia

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232 Russia
Discovery
Discovered by Johann Palisa
Discovery date 31 January 1883
Designations
Named after
Russia
A921 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)
18.65 km/s
213.685°
0° 14m 29.976s / day
Inclination 6.0659°
152.250°
52.163°
Earth MOID 1.10974 AU (166.015 Gm)
Jupiter MOID 1.9726 AU (295.10 Gm)
Jupiter Tisserand parameter 3.410
Physical characteristics
Dimensions 53.28±1.1 km
21.905 h (0.9127 d)
0.0494±0.002
C
10.25

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 January 31, 1883 in Vienna and was named 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[edit]

  1. ^ "232 Russia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016. 
  2. ^ 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. 
  3. ^ 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]