1951 Lick

1951 Lick
Discovery [1]
Discovered by C. A. Wirtanen
Discovery site Lick Observatory
Discovery date 26 July 1949
Designations
MPC designation 1951 Lick
Named after
 James Lick
(philanthropist)[2]
1949 OA
Mars crosser [1][3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 66.64 yr (24339 days)
Aphelion 1.4760 AU (220.81 Gm)
Perihelion 1.3049 AU (195.21 Gm)
1.3905 AU (208.02 Gm)
Eccentricity 0.061525
1.64 yr (598.90 d)
220.68°
0° 36m 3.96s / day
Inclination 39.093°
130.76°
140.48°
Earth MOID 0.305398 AU (45.6869 Gm)
Jupiter MOID 3.71854 AU (556.286 Gm)
Jupiter Tisserand parameter 4.543
Physical characteristics
Dimensions 5.57 km[4]
5.59 km (derived)[3]
Mean radius
 2.785 ± 0.25 km
5.3016 h (0.22090 d)[lower-alpha 1][1]
4.424±0.006 h[5]
5.3008±0.0024 h[lower-alpha 1]
5.2974±0.0004 h[6]
5.317±0.001 h[7]
0.0895[4]
0.1028 (derived)[3]
0.0895 ± 0.020[1]
SMASS = A [1]
A [3]
14.2

    1951 Lick, provisional designation 1949 OA, is a 6-kilometer sized asteroid that crosses the orbit of Mars. It was discovered on July 26, 1949, by American astronomer Carl Wirtanen at Lick Observatory on the summit of Mount Hamilton, California.[8]

    The spectral type of the asteroid is that of a rare A-type with its surface consisting of almost pure olivine.[9] As of November 2015, only 17 minor planets of this type are known.[10] It orbits the Sun at a distance of 1.3–1.5 AU once every 1.64 years (599 days). Its orbit is heavily tilted by 39 degrees to the plane of the ecliptic, with a semimajor axis of 1.39 AU and an eccentricity of 0.061.[1] It has a geometric albedo of about 0.09 and a rotation period of 5.3 hours.[lower-alpha 1][5][6][7]

    The asteroid was named in honor of James Lick (1796–1876), American philanthropist and the founder of the Lick Observatory of the University of California. He is also honored by a lunar crater Lick.[2]

    References

    1. 1 2 3 Summary figures for rotation period 5.3016 hours (Pravec-1997web) and 5.3008±0.0024 hours (Pravec-1998web) at Light Curve Database –(1951) Lick
    1. 1 2 3 4 5 6 7 "JPL Small-Body Database Browser: 1951 Lick (1949 OA)" (2014-01-09 last obs.). Jet Propulsion Laboratory. Retrieved 18 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1951) Lick. Springer Berlin Heidelberg. pp. 156–157. ISBN 978-3-540-29925-7. Retrieved 7 November 2015.
    3. 1 2 3 4 "LCDB Data for (1951) Lick". Asteroid Lightcurve Database (LCDB). Retrieved 7 November 2015.
    4. 1 2 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. Bibcode:2004PDSS...12.....T. Retrieved 7 November 2015.
    5. 1 2 Wisniewski, W. Z.; Michalowski, T. M.; Harris, A. W.; McMillan, R. S. (March 1995). "Photoelectric Observations of 125 Asteroids". Abstracts of the Lunar and Planetary Science Conference. Bibcode:1995LPI....26.1511W. Retrieved 7 November 2015.
    6. 1 2 Warner, Brian D. (January 2009). "Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2008 May - September". The Minor Planet Bulletin. 36 (1): 7–13. Bibcode:2009MPBu...36....7W. ISSN 1052-8091. Retrieved 7 November 2015.
    7. 1 2 Lucas, Michael P.; Ryan, Jeffrey G.; Fauerbach, Michael; Grasso, Salvatore (October 2011). "Lightcurve Analysis of Five Taxonomic A-class Asteroids". The Minor Planet Bulletin. 38 (4): 218–220. Bibcode:2011MPBu...38..218L. ISSN 1052-8091. Retrieved 7 November 2015.
    8. ↑ "1951 Lick (1949 OA)". Minor Planet Center. Retrieved 7 November 2015.
    9. ↑ de León, J.; Duffard, R.; Licandro, J.; Lazzaro, D. (July 2004), "Mineralogical characterization of A-type asteroid (1951) Lick", Astronomy and Astrophysics, 422: L59–L62, Bibcode:2004A&A...422L..59D, doi:10.1051/0004-6361:20048009
    10. ↑ "JPL Small-Body Database Search Engine: spec. type = A (SMASSII)". JPL Solar System Dynamics. Retrieved 7 November 2015.

    External links


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