1941 Wild

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1941 Wild
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date6 October 1931
Designations
(1941) Wild
Named after
 Paul Wild (Swiss astronomer) [2]
1931 TN1 ·1971 SO1
A915 UA
main-belt  · Hilda [3]
Schubart
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 101.55 yr (37,090 days)
Aphelion 5.0926 AU
Perihelion 2.8115 AU
3.9520 AU
Eccentricity 0.2886
7.86 yr (2,870 days)
288.25°
0° 7m 31.8s / day
Inclination 3.9587°
60.454°
302.70°
Jupiter  MOID 0.4044 AU
TJupiter 2.9810
Physical characteristics
Dimensions17.120±0.122 km [4]
24.30 km (calculated) [5]
9.05 h [6]
45.6488±0.1783 h [7]
0.057 (assumed) [5]
0.152±0.032 [4]
M [4]  · C [5]
11.8 [1] [5]  ·11.83±0.38 [8]  ·12.139±0.002(S) [7]

    1941 Wild, provisional designation 1931 TN1, is an eccentric Hildian asteroid from the outermost region of the asteroid belt, approximately 20 kilometers in diameter.

    Contents

    It was discovered on 6 October 1931, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. [3] The asteroid was named for Swiss astronomer Paul Wild.

    Orbit and classification

    Wild is a member of the Hilda family, a large group of asteroids that are thought to have originated from the Kuiper belt. Located in the outermost part of the main-belt, they orbit in a 3:2 orbital resonance with the gas giant Jupiter, meaning that for every 2 orbits Jupiter completes around the Sun, a Hildian asteroid will complete 3 orbits. [1] As the Hildas neither cross the path of any of the planets nor can they be pulled out of orbit by Jupiter's gravitational field due to their resonance, it is likely that the asteroid will remain in a stable orbit for thousands of years.

    The asteroid orbits the Sun in the outer main-belt at a distance of 2.8–5.1  AU once every 7 years and 10 months (2,870 days). Its orbit has an eccentricity of 0.29 and an inclination of 4° with respect to the ecliptic. [1] Wild' observation arc begins with its discovery observation, as A915 UA, a previous identification made at Heidelberg in 1918, remained unused. [3]

    Physical characteristics

    According to the survey on the Hilda Population carried out by the Wide-field Infrared Survey Explorer (WISE) with its subsequent NEOWISE mission, Wild measures 17.2 kilometers in diameter, and its surface has an albedo of 0.152, [4] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids 0.057, and calculates a diameter of 24.3 kilometers with an absolute magnitude of 11.8. [5] WISE also classifies the carbonaceous asteroid as a metallic M-type. [4]

    A rotational lightcurve of Wild was obtained by Richard P. Binzel in October 1987. It gave a rotation period of 9.05 hours with a brightness variation of 0.36 magnitude ( U=2 ). [6] A longer period of 45.6 hours was derived from photometric observations at the Palomar Transient Factory in September 2011 ( U=1 ) [7]

    Naming

    This minor planet was named in honor of Swiss astronomer Paul Wild (1925–2014), who worked at the Astronomical Institute of the University of Bern. [2] Wild's research focused on the discovery and observation of supernovae in other galaxies. He was also a prolific discoverer of minor planets and comets, most notably of comet Wild 2, which he discovered at the university's nearby Zimmerwald Observatory, and which was later visited by NASA's Stardust Mission. [2] The official naming citation was published by the Minor Planet Center on 20 February 1976 ( M.P.C. 3938). [9]

    Related Research Articles

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    1038 Tuckia, provisional designation 1924 TK, is rare-type Hilda asteroid from the outermost regions of the asteroid belt, approximately 58 kilometers in diameter. It was discovered on 24 November 1924, by German astronomer by Max Wolf at Heidelberg Observatory in southwest Germany. The asteroid was named after American banker Edward Tuck and his wife.

    1180 Rita, provisional designation 1931 GE, is a dark and spheroidal Hildian asteroid from the outermost regions of the asteroid belt, approximately 97 kilometers in diameter. It was discovered on 9 April 1931, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. Any reference of its later name, Rita, is unknown.

    1162 Larissa, provisional designation 1930 AC, is a metallic Hildian asteroid from the outermost regions of the asteroid belt, approximately 43 kilometers in diameter. It was discovered on 5 January 1930, by astronomer German astronomer Karl Reinmuth at Heidelberg Observatory in southwest Germany. The asteroid was named after the Greek city of Larissa.

    1268 Libya, provisional designation 1930 HJ, is a dark Hildian asteroid from the outer regions of the asteroid belt, approximately 95 kilometers in diameter. It was discovered on 29 April 1930, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg, South Africa. The asteroid was named for the country Libya.

    2067 Aksnes, provisional designation 1936 DD, is a rare-type Hildian asteroid from the outermost region of the asteroid belt, approximately 44 kilometers in diameter. The asteroid was discovered on 23 February 1936, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland. It was named after astronomer Kaare Aksnes.

    3290 Azabu, provisional designation 1973 SZ1, is a dynamical Hildian asteroid from the outermost regions of the asteroid belt, approximately 10–20 kilometers (6–10 miles) in diameter. It was discovered on 19 September 1973, by Dutch astronomers Ingrid and Cornelis van Houten at Leiden, and Tom Gehrels the Palomar Observatory. The asteroid has a rotation period of 7.67 hours. It was named after the former city district of Tokyo, Azabu.

    2246 Bowell, provisional designation 1979 XH, is a rare-type Hildian asteroid from the outermost region of the asteroid belt, approximately 44 kilometers in diameter. It was discovered on 14 December 1979, by American astronomer Edward Bowell at Lowell Observatory's Anderson Mesa Station, and named after the discoverer himself.

    3254 Bus, provisional designation 1982 UM, is a rare-type Hildian asteroid from the outermost region of the asteroid belt, approximately 32 kilometers in diameter. It was discovered on 17 October 1982, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station in Flagstaff, Arizona. It is named after astronomer Schelte J. Bus.

    1754 Cunningham, provisional designation 1935 FE, is a Hildian asteroid from the outermost region of the asteroid belt, approximately 80 kilometers in diameter.

    3202 Graff, provisional designation A908 AA, is a carbonaceous Hilda asteroid from the outermost region of the asteroid belt, approximately 36 kilometers in diameter. It was discovered on 3 January 1908, by German astronomer Max Wolf at Heidelberg Observatory in southern Germany. The asteroid was named after astronomer Gareth V. Williams.

    <span class="mw-page-title-main">2483 Guinevere</span>

    2483 Guinevere is a dark and elongated Hilda asteroid from the outermost regions of the asteroid belt, approximately 43 kilometers in diameter. The asteroid was discovered on 17 August 1928, by German astronomer Max Wolf at Heidelberg Observatory in southwest Germany and given the provisional designation 1928 QB. In the 1980s, it was named after King Arthur's wife Guinevere.

    1202 Marina, provisional designation 1931 RL, is a primitive Hildian background asteroid from the outermost regions of the asteroid belt, approximately 55 kilometers in diameter. It was discovered by Grigory Neujmin at the Simeiz Observatory in 1931, and later named in honor of Marina Lavrova–Berg, a scientific collaborator at Pulkovo Observatory, who died at an early age during WWII.

    1748 Mauderli, provisional designation 1966 RA, is a dark and very reddish Hildian asteroid from the outermost region of the asteroid belt, approximately 45 kilometers in diameter.

    <span class="mw-page-title-main">1256 Normannia</span>

    1256 Normannia is a dark Hilda asteroid and slow rotator from the outermost regions of the asteroid belt, approximately 69 kilometers in diameter. It was discovered on 8 August 1932, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in Germany. The asteroid was likely named after the Normans who gave their name to the region of Normandy in France.

    1529 Oterma, provisional designation 1938 BC, is a reddish, rare-type Hildian asteroid from the outermost region of the asteroid belt, approximately 56 kilometers in diameter. It was discovered on 26 January 1938, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland. It is named for Liisi Oterma.

    <span class="mw-page-title-main">1512 Oulu</span>

    1512 Oulu, provisional designation 1939 FE, is a dark Hildian asteroid, slow rotator and possibly the largest known tumbler orbiting in the outermost region of the asteroid belt. With a diameter of approximately 80 kilometers, it belongs to the fifty largest asteroids in the outer main-belt. The body was discovered on 18 March 1939, by Finnish astronomer Heikki Alikoski at Turku Observatory in Southwest Finland and named for the Finnish town Oulu.

    1345 Potomac, provisional designation 1908 CG, is a dark Hildian asteroid from the outermost regions of the asteroid belt, approximately 73 kilometers (45 mi) in diameter. It was discovered on 4 February 1908, by American astronomer Joel Metcalf at the Taunton Observatory in Massachusetts, United States. The X-type asteroid has a rotation period of 11.4 hours. It was named for the Potomac River on which Washington, D.C. is located.

    2959 Scholl, provisional designation 1983 RE2, is a carbonaceous Hildian asteroid from the outer regions of the asteroid belt, approximately 34 kilometers in diameter. It was discovered on 4 September 1983 by English–American astronomer Edward Bowell of the Lowell Observatory at Anderson Mesa Station near Flagstaff, Arizona. The asteroid was named after German astronomer Hans Scholl.

    1439 Vogtia, provisional designation 1937 TE, is a dark Hildian asteroid from the outermost region of the asteroid belt, approximately 48 kilometers in diameter. It was discovered on 11 October 1937, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. It is named for astronomer Heinrich Vogt.

    References

    1. 1 2 3 4 5 "JPL Small-Body Database Browser: 1941 Wild (1931 TN1)" (2017-05-04 last obs.). Jet Propulsion Laboratory . Retrieved 10 June 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(1941) Wild". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 156. doi:10.1007/978-3-540-29925-7_1942. ISBN   978-3-540-00238-3.
    3. 1 2 3 "1941 Wild (1931 TN1)". Minor Planet Center. Retrieved 9 December 2016.
    4. 1 2 3 4 5 Grav, T.; Mainzer, A. K.; Bauer, J.; Masiero, J.; Spahr, T.; McMillan, R. S.; et al. (January 2012). "WISE/NEOWISE Observations of the Hilda Population: Preliminary Results". The Astrophysical Journal. 744 (2): 15. arXiv: 1110.0283 . Bibcode:2012ApJ...744..197G. doi:10.1088/0004-637X/744/2/197. S2CID   44000310 . Retrieved 16 December 2015.
    5. 1 2 3 4 5 "LCDB Data for (1941) Wild". Asteroid Lightcurve Database (LCDB). Retrieved 9 December 2016.
    6. 1 2 Binzel, Richard P.; Sauter, Linda M. (February 1992). "Trojan, Hilda, and Cybele asteroids - New lightcurve observations and analysis". Icarus. 95 (2): 222–238. Bibcode:1992Icar...95..222B. doi:10.1016/0019-1035(92)90039-A. ISSN   0019-1035 . Retrieved 9 December 2016.
    7. 1 2 3 Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv: 1504.04041 . Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. S2CID   8342929 . Retrieved 9 December 2016.
    8. ↑ 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. S2CID   53493339 . Retrieved 9 December 2016.
    9. ↑ Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) . Springer Berlin Heidelberg. p.  221. Bibcode:2009dmpn.book.....S. doi:10.1007/978-3-642-01965-4. ISBN   978-3-642-01964-7.
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