2865 Laurel

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2865 Laurel
2865 Laurel orbit.png
2865 Laurel orbit, and his position on 06 Jun 2011 (NASA Orbit Viewer applet)
Discovery  [1]
Discovered by C. Jackson
Discovery site Johannesburg Obs.
Discovery date31 July 1935
Designations
(2865) Laurel
Named after
 Stan Laurel (film comedian) [2]
1935 OK ·1939 PA
1947 NF ·1951 ML
1972 QH
main-belt  ·(middle)  [3]
Maria
Orbital characteristics   [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 81.62 yr (29,810 days)
Aphelion 2.7406 AU
Perihelion 2.3812 AU
2.5609 AU
Eccentricity 0.0702
4.10 yr (1,497 days)
71.330°
0° 14m 25.8s / day
Inclination 14.294°
321.79°
293.35°
Physical characteristics
Dimensions14.73±1.2 km (IRAS:3) [4]
14.79 km (derived) [3]
18.83±0.73 km [5]
24.99±0.37 km [6]
21.5±0.3 h [7]
0.094±0.014 [6]
0.142±0.013 [5]
0.2242±0.043(IRAS:3) [4]
0.2438 (derived) [3]
S   [3] [8]
11.20 [6]  ·11.24±0.30 [8]  ·11.3 [1] [3]  ·11.40 [4] [5]

    2865 Laurel, provisional designation 1935 OK, is a stony Marian asteroid from the middle region of the asteroid belt, approximately 15 kilometers in diameter. It was discovered by English-born South African astronomer Cyril Jackson at Johannesburg Observatory on 31 July 1935. [9] The asteroid was named after movie comedian Stan Laurel. [2]

    Contents

    Orbit and classification

    Laurel orbits the Sun in the central main-belt at a distance of 2.4–2.7  AU once every 4 years and 1 month (1,497 days). Its orbit has an eccentricity of 0.07 and an inclination of 14° with respect to the ecliptic. [1] No precoveries were taken and the asteroid's observation arc begins with its discovery observation in 1935. [9]

    Physical characteristics

    Laurel has been characterized as a common S-type asteroid by PanSTARRS ' photometric survey. [8]

    Rotation period

    A rotational lightcurve for this asteroid was obtained from photometric observations by French amateur astronomer Pierre Antonini in September 2005. It gave a longer than average rotation period of 21.5±0.3 hours with a brightness variation of 0.15 in magnitude ( U=2 ). [7]

    Diameter and albedo

    According to the space-based surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures between 14.7 and 25.0 kilometers in diameter and its surface has an albedo between 0.09 and 0.22. [4] [5] [6] The Collaborative Asteroid Lightcurve Link agrees with IRAS and derives an albedo of 0.24 and a diameter 14.8 kilometers. [3]

    Naming

    This minor planet was named after English-born slapstick film comedian Stan Laurel (1890–1965). Together with Oliver Hardy (1892–1957), who was honored with the main-belt asteroid 2866 Hardy, they formed the first great comedy duo in Classical Hollywood cinema. [2] The official naming citation was published by the Minor Planet Center on 1 September 1993 ( M.P.C. 22496), [10] based on a suggestion by Gareth V. Williams and others. [2]

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    1712 Angola, provisional designation 1935 KC, is a dark asteroid from the outer regions of the asteroid belt, approximately 66 kilometers in diameter. It was discovered on 28 May 1935, by English-born South African astronomer Cyril Jackson at Johannesburg Observatory in South Africa. It is named after the Republic of Angola.

    1477 Bonsdorffia, provisional designation 1938 CC, is a background asteroid from the outer regions of the asteroid belt, approximately 29 kilometers in diameter. It was discovered on 6 February 1938, by astronomer Yrjö Väisälä at the Iso-Heikkilä Observatory in Turku, Finland. The asteroid was named after Finnish astronomer Ilmari Bonsdorff, who founded the Finnish Geodetic Institute.

    1354 Botha, provisional designation 1935 GK, is an exceptionally dark background asteroid from the outer regions of the asteroid belt, approximately 46 kilometers in diameter. It was discovered on 3 April 1935, by South-African astronomer Cyril Jackson at the Union Observatory in Johannesburg. The asteroid was named after South African prime minister Louis Botha.

    1409 Isko, provisional designation 1937 AK, is a carbonaceous background asteroid from the central regions of the asteroid belt, approximately 35 kilometers in diameter. It was discovered on 8 January 1937, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid was named after Ise Koch, wife of astronomer Fritz Kubach.

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    1817 Katanga, provisional designation 1939 MB, is a stony Phocaea asteroid in from the inner regions of the asteroid belt, approximately 16 kilometers in diameter. It was discovered on 20 June 1939, by English-born South African astronomer Cyril Jackson at Johannesburg Observatory in South Africa. It is named for the Katanga Province.

    1505 Koranna, provisional designation 1939 HH, is a stony Eunomia asteroid from the central regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 21 April 1939, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg. The asteroid was named for the native Koranna people of South Africa.

    1261 Legia, provisional designation 1933 FB, is a dark Themistian asteroid from the outer regions of the asteroid belt, approximately 32 kilometers in diameter. It was discovered on 23 March 1933, by astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. The asteroid was named for the Belgian city of Liège (Luke).

    <span class="mw-page-title-main">2094 Magnitka</span>

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    <span class="mw-page-title-main">1368 Numidia</span> Asteroid

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    1347 Patria, provisional designation 1931 VW, is a carbonaceous asteroid from the background population of the central asteroid belt, approximately 32 kilometers in diameter. It was discovered on 6 November 1931, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The asteroid was named for the Latin word of fatherland.

    1760 Sandra, provisional designation 1950 GB, is a carbonaceous asteroid from the outer regions of the asteroid belt, approximately 35 kilometers in diameter. It was discovered on 10 April 1950, by South African astronomer Ernest Johnson at Union Observatory in Johannesburg, and named after his granddaughter Sandra.

    2443 Tomeileen, provisional designation A906 BJ, is a stony Eoan asteroid from the outer regions of the asteroid belt, approximately 32 kilometers in diameter. It was discovered on 24 January 1906, by German astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory in Heidelberg, Germany. The S-type asteroid was named after the parents of British astronomer Brian G. Marsden. It has a rotation period of 3.97 hours.

    5176 Yoichi, provisional designation 1989 AU, is a background asteroid from the central regions of the asteroid belt, approximately 17 kilometers in diameter. It was discovered on 4 January 1989, by Japanese astronomers Seiji Ueda and Hiroshi Kaneda at the Kushiro Observatory on Hokkaido, Japan. The likely elongated asteroid has a brightness variation of 0.45 magnitude, and occulted a star in the constellation Cetus in November 2014. It was named for the Japanese town of Yoichi.

    1341 Edmée, provisional designation 1935 BA, is a rare-type metallic asteroid from the central region of the asteroid belt, approximately 27 kilometers in diameter.

    1461 Jean-Jacques, provisional designation 1937 YL, is a metallic asteroid from the outer region of the asteroid belt, approximately 34 kilometers in diameter. It was discovered on 30 December 1937, by French astronomer Marguerite Laugier at Nice Observatory in southern France, who named it after her son Jean-Jacques Laugier.

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 2865 Laurel (1935 OK)" (2017-03-12 last obs.). Jet Propulsion Laboratory . Retrieved 14 June 2017.
    2. 1 2 3 4 Schmadel, Lutz D. (2007). "(2865) Laurel". Dictionary of Minor Planet Names – (2865) Laurel. Springer Berlin Heidelberg. p. 235. doi:10.1007/978-3-540-29925-7_2866. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 "LCDB Data for (2865) Laurel". Asteroid Lightcurve Database (LCDB). Retrieved 9 July 2016.
    4. 1 2 3 4 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T . Retrieved 22 October 2019.
    5. 1 2 3 4 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)
    6. 1 2 3 4 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv: 1209.5794 . Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8 . Retrieved 9 July 2016.
    7. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (2865) Laurel". Geneva Observatory . Retrieved 9 July 2016.
    8. 1 2 3 Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv: 1506.00762 . Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007 . Retrieved 9 July 2016.
    9. 1 2 "2865 Laurel (1935 OK)". Minor Planet Center. Retrieved 9 July 2016.
    10. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 9 July 2016.
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