2006 Polonskaya

2006 Polonskaya
Discovery [1]
Discovered by N. Chernykh
Discovery site CrAO (Nauchnyj)
Discovery date 22 September 1973
Designations
MPC designation 2006 Polonskaya (1973 SB3)
Named after
 Elene Polonskaya[2]
1973 SB3 · 1941 SD
1948 QH · 1966 VC
main-belt
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 64.17 yr (23437 days)
Aphelion 2.7735 AU (414.91 Gm)
Perihelion 1.8755 AU (280.57 Gm)
2.3245 AU (347.74 Gm)
Eccentricity 0.19316
3.54 yr (1294.5 d)
19.35 km/s
327.43°
0° 16m 41.16s / day
Inclination 4.9185°
0.98057°
24.322°
Known satellites 1 (probably)[3]
Earth MOID 0.878855 AU (131.4748 Gm)
Jupiter MOID 2.68729 AU (402.013 Gm)
Jupiter Tisserand parameter 3.545
Physical characteristics
Dimensions 4.5±0.2 km[3]
Mean density
 1.6 g/cm3[3]
3.1183 h (0.12993 d)
0.10
0.35 (system)[3]
Temperature ~ 183 K
12.9
    S/2005 (2006) 1
    Discovery
    Discovered by D. Pray, P. Pravec, P. Kusnirak, W. Cooney, J. Gross, and D. Terrell
    Discovery date 2005/11/01
    Light curve
    Orbital characteristics
    8.5 km
    0.7979 ± 0.0008 d
    19 hours, 9 ± 1 minutes
    13 mas (maximum)
    Satellite of 2006 Polonskaya
    Physical characteristics
    Dimensions 0.99 km
    Volume 0.5 km3 (assumed)
    6.6571 ± 0.0002 h
    <3.3 fainter than primary
    18.1

      2006 Polonskoya is main belt asteroid. It was discovered on 22 September 1973 by Nikolai Chernykh and named after Elene Ivanovna Kazimirchak-Polonskaya, a Russian astronomer. Polonskaya's diameter is approximately 10 kilometers.[1][2]

      Satellite

      In 2005, it was claimed that lightcurve observations indicate that Polonskaya has a small moon about 0.99 km in diameter.[3] However, the non-synchronously rotating binary still needs to be fully resolved in order to confirm such satellite. Alternatively, the presence of another body has also been suggested to explain the lightcurve's irregular period, which would make it a trinary asteroid.[4]

      References

      1. 1 2 3 "JPL Small-Body Database Browser: 2006 Polonskaya (1973 SB3)" (2014-06-17 last obs.). Jet Propulsion Laboratory. Retrieved 17 April 2016.
      2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (2006) Polonskaya. Springer Berlin Heidelberg. p. 162. ISBN 978-3-540-29925-7. Retrieved October 2015.
      3. 1 2 3 4 5 Johnston, Robert. "(2006) Polonskaya". johnstonsarchive.net. Retrieved 28 May 2015.
      4. ↑ "IAUC 8630, 2006". CBAT–IAU Central Bureau for Astronomical Telegrams. 16 November 2005. Retrieved October 2015.

      External links

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