281 Lucretia

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281 Lucretia
281Lucretia (Lightcurve Inversion).png
A three-dimensional model of 281 Lucretia based on its light curve.
Discovery
Discovered by Johann Palisa
Discovery date October 31, 1888
Designations
Named after
Caroline Lucretia Herschel
A906 FD; 1948 EK;
1984 JX
Minor planet category Main belt (Flora family)
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion 370.638 Gm (2.478 AU)
Perihelion 283.953 Gm (1.898 AU)
327.295 Gm (2.188 AU)
Eccentricity 0.132
1181.985 d (3.24 a)
20.14 km/s
323.188°
Inclination 5.308°
31.502°
16.288°
Physical characteristics
Dimensions 12 km [1]
Mass ~2×1015 (estimate)
Mean density
~2.7 g/cm³ (estimate) [2]
~0.004 m/s² (estimate)
~0.007 km/s (estimate)
0.181 d (4.348 h) [3]
Albedo 0.199 [1]
Temperature ~183 K
max: 277 K (+4°C)
Spectral type
S [3]
12.02

281 Lucretia is an asteroid belonging to the Flora family in the Main Belt.

It was discovered by Johann Palisa on October 31, 1888 in Vienna. It is named for the middle name of Caroline Herschel, one of the first female astronomers.

References[edit]

  1. ^ a b Supplemental IRAS Minor Planet Survey
  2. ^ G. A. Krasinsky et al. (2002). "Hidden Mass in the Asteroid Belt". Icarus 158: 98. Bibcode:2002Icar..158...98K. doi:10.1006/icar.2002.6837. 
  3. ^ a b PDS lightcurve data