1112 Polonia

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1112 Polonia
Discovery [1]
Discovered by P. Shajn
Discovery site Simeiz Observatory
Discovery date 15 August 1928
Designations
MPC designation (1112) Polonia
Named after
Poland[2]
1928 PE · 1933 PA
A908 XA
main-belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 87.68 yr (32024 days)
Aphelion 3.3407 AU (499.76 Gm)
Perihelion 2.6965 AU (403.39 Gm)
3.0186 AU (451.58 Gm)
Eccentricity 0.10670
5.24 yr (1915.6 d)
213.79°
0° 11m 16.548s / day
Inclination 8.9919°
302.87°
87.500°
Earth MOID 1.71948 AU (257.231 Gm)
Jupiter MOID 2.12373 AU (317.705 Gm)
Jupiter Tisserand parameter 3.220
Physical characteristics
Mean radius
17.88±0.8 km
82.5 h (3.44 d)
0.1319±0.012
B–V = 0.797
U–B = 0.447
Tholen = S
10.05

1112 Polonia, provisional designation 1928 PE, is a main-belt asteroid orbiting the Sun at a distance of 2.7–3.4 AU. It was discovered by Pelageya Shajn on August 15, 1928, and independently discovered by her colleague Grigory Neujmin, both at Simeiz Observatory in Crimea. The 36-kilometer in diameter, S-type asteroid was the first to be discovered by a female astronomer.[1][2]

The asteroid was given the Latin name of the country of Poland.[2]

References[edit]

  1. ^ a b c "JPL Small-Body Database Browser: 1112 Polonia (1928 PE)" (2015-08-02 last obs.). Jet Propulsion Laboratory. Retrieved 2 May 2016. 
  2. ^ a b c Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1112) Polonia. Springer Berlin Heidelberg. p. 94. ISBN 978-3-540-29925-7. Retrieved 22 August 2016. 

External links[edit]