281 Lucretia

281 Lucretia
	A three-dimensional model of 281 Lucretia based on its light curve
Discovery
Discovered by	Johann Palisa
Discovery date	31 October 1888
Designations
MPC designation	(281) Lucretia
Pronunciation	/luːˈkriːʃə/
Named after	Caroline Lucretia Herschel
Alternative designations	A906 FD; 1948 EK;; 1984 JX
Minor planet category	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)
Semi-major axis	2.18786 AU (327.299 Gm)
Eccentricity	0.13239
Orbital period	3.24 yr (1182.0 d)
Mean anomaly	161.880°
Mean motion	0° 18m 16.423s / day
Inclination	5.30407°
Longitude of ascending node	31.4134°
Argument of perihelion	16.7540°
Physical characteristics
Dimensions	11.76±0.9 km [1]; 12 km [2]
Mean density	~2.7 g/cm³[3]
Rotation period	0.181 d (4.348 h)[4]
Geometric albedo	0.1987±0.035 [1]; 0.199 [2]
Spectral type	S [5]
Absolute magnitude (H)	12.02

Lucretia (minor planet designation: 281 Lucretia) is an asteroid belonging to the Flora family in the Main Belt.[4]

It was discovered by Johann Palisa on 31 October 1888 in Vienna. It is named for the middle name of Caroline Herschel, one of the first female astronomers.[6]

References

"281 Lucretia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
Supplemental IRAS Minor Planet Survey Archived June 23, 2006, at Archive.today
G. A. Krasinsky; et al. (2002). "Hidden Mass in the Asteroid Belt". Icarus. 158 (1): 98–105. Bibcode:2002Icar..158...98K. doi:10.1006/icar.2002.6837.
Kryszczynska, A.; et al. (October 2012). "Do Slivan states exist in the Flora family?. I. Photometric survey of the Flora region". Astronomy & Astrophysics. 546: 51. Bibcode:2012A&A...546A..72K. doi:10.1051/0004-6361/201219199. A72.
"Asteroid Taxonomy". Planetary Science Institute. Retrieved 27 February 2016.
Schmadel, Lutz D. (2007). "(281) Lucretia". Dictionary of Minor Planet Names – (281) Lucretia. Springer Berlin Heidelberg. p. 38. doi:10.1007/978-3-540-29925-7_282. ISBN 978-3-540-00238-3.

External links

281 Lucretia at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
281 Lucretia at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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[jpldata-1] "281 Lucretia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.

[IRAS-2] Supplemental IRAS Minor Planet Survey Archived June 23, 2006, at Archive.today

[Krasinsky-3] G. A. Krasinsky; et al. (2002). "Hidden Mass in the Asteroid Belt". Icarus. 158 (1): 98–105. Bibcode:2002Icar..158...98K. doi:10.1006/icar.2002.6837.

[Kryszczynska-2012b-4] Kryszczynska, A.; et al. (October 2012). "Do Slivan states exist in the Flora family?. I. Photometric survey of the Flora region". Astronomy & Astrophysics. 546: 51. Bibcode:2012A&A...546A..72K. doi:10.1051/0004-6361/201219199. A72.

[5] "Asteroid Taxonomy". Planetary Science Institute. Retrieved 27 February 2016.

[6] Schmadel, Lutz D. (2007). "(281) Lucretia". Dictionary of Minor Planet Names – (281) Lucretia. Springer Berlin Heidelberg. p. 38. doi:10.1007/978-3-540-29925-7_282. ISBN 978-3-540-00238-3.