.png) A three-dimensional model of 281 Lucretia based on its light curve | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 31 October 1888 |
| Designations | |
| (281) Lucretia | |
| Pronunciation | /luːˈkriːʃə/ |
Named after | Caroline Lucretia Herschel |
| A888 UC, 1906 FD 1948 EK, 1984 JX | |
| Main belt (Flora family) | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 126.00 yr (46020 d) |
| Aphelion | 2.47750 AU (370.629 Gm) |
| Perihelion | 1.89821 AU (283.968 Gm) |
| 2.18786 AU (327.299 Gm) | |
| Eccentricity | 0.13239 |
| 3.24yr (1182.0d) | |
| 161.880° | |
| 0° 18m 16.423s / day | |
| Inclination | 5.30407° |
| 31.4134° | |
| 16.7540° | |
| Physical characteristics | |
| Dimensions | 11.76±0.9 km[1] 12 km[2] |
Meandensity | ~2.7 g/cm3[3] |
| 0.181 d (4.348 h)[4] | |
| 0.1987±0.035[1] 0.199[2] | |
| S[5] | |
| 12.02 | |
281 Lucretia is anasteroid belonging to theFlora family in theMain Belt.[4] It was discovered by Austrian astronomerJohann Palisa on 31 October 1888 inVienna, and is named after the middle name ofCaroline Herschel, one of the first female astronomers.[6]Light curves of this asteroid show asynodic rotation period of4.349±0.001 h with anamplitude of 0.3–0.4 magnitude. The spin axis appears nearly perpendicular to theecliptic.[4]
_mathilde.jpg) | This article about an S-type asteroid native to theasteroid belt is astub. You can help Wikipedia byexpanding it. |
