Astronomy:3015 Candy

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3015 Candy
003015-asteroid shape model (3015) Candy.png
Shape model of Candy from its lightcurve
Discovery [1]
Discovered byE. Bowell
Discovery siteAnderson Mesa Stn.
Discovery date9 November 1980
Designations
(3015) Candy
Named afterMichael P. Candy
(British astronomer)[2]
1980 VN · 1974 VL2
1974 XC · 1984 HS
Minor planet categorymain-belt · (outer) [1][3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc52.17 yr (19,056 days)
|{{{apsis}}}|helion}}3.9747 AU
|{{{apsis}}}|helion}}2.7983 AU
3.3865 AU
Eccentricity0.1737
Orbital period6.23 yr (2,276 days)
Mean anomaly0.7451°
Mean motion0° 9m 29.52s / day
Inclination17.402°
Longitude of ascending node38.162°
300.96°
Physical characteristics
Mean diameter24.517±0.470 km[4][5]
33.54 km (calculated)[3]
Rotation period4.6249±0.0001 h[6]
4.625±0.001 h[7]
4.62501±0.00004 h[8]
4.62516 h[9][10]
4.625223 h[11]
Pole ecliptic latitude
  • (142.0°, −26.0°) (λ1/β1)[11]
  • (346.0°, −70.0°) (λ2/β2)[11]
Geometric albedo0.057 (assumed)[3]
0.1067±0.0173[4][5]
C (assumed)[3]
Absolute magnitude (H)11.1[1][3][5] · 11.14±0.34[12]


3015 Candy (prov. designation: 1980 VN) is a background asteroid from the outer regions of the asteroid belt, approximately 25 kilometers (16 miles) in diameter. It was discovered on 9 November 1980, by British-American astronomer Edward Bowell at Anderson Mesa Station in Flagstaff, Arizona.[13] The asteroid was named after British astronomer Michael P. Candy.[2]

Orbit and classification

Candy is a background asteroid that does not belong to any known asteroid family. It orbits the Sun in the outer main-belt at a distance of 2.8–4.0 AU once every 6 years and 3 months (2,276 days). Its orbit has an eccentricity of 0.17 and an inclination of 17° with respect to the ecliptic.[1] The body's observation arc begins with a precovery taken at Goethe Link Observatory in May 1965, more than 15 years prior to its official discovery observation at Anderson Mesa.[13]

Naming

This minor planet was named after Michael P. Candy (1928–1994) a British astronomer and discoverer of minor planets and comets, who was a director of the Royal Greenwich Observatory and Perth Observatory.[2] As a long-time astrometrist and orbit computer, he discovered comet C/1960 Y1 (Candy) at Greenwich, as well as the minor planet 3898 Curlewis, 3893 DeLaeter and 3894 Williamcooke. He was also president of IAU's Commission VI.[2] The official naming citation was published by the Minor Planet Center on 22 June 1986 (M.P.C. 10845).[14]

Physical characteristics

Candy is an assumed carbonaceous C-type asteroid.[3]

Lightcurves

Several rotational lightcurves of Candy were obtained from photometric observations by astronomer Maurice Clark. Lightcurve analysis gave a well-defined rotation period between 4.6249 and 4.62516 hours with a brightness variation between 0.50 and 1.05 magnitude ({{{1}}}). (A high brightness amplitude typically indicates that a body has a non-spheroidal shape.)[6][7][8][9][10]

A 2016-published lightcurve, using modeled photometric data from the Lowell Photometric Database (LPD), gave a concurring period of 4.625223 hours ({{{1}}}), as well as two spin axis of (142.0°, −26.0°) and (346.0°, −70.0°) in ecliptic coordinates (λ, β).[11] Clark's spin modeling also suggests that Candy has a retrograde rotation, and a spin axis of (306.0°, 43.0.0°), that is nearly aligned with the body's shortest axis.[10]

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Candy measures 24.517 kilometers in diameter and its surface has an albedo of 0.1067,[4][5] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous of 0.057, and calculates a diameter of 33.54 kilometers based on an absolute magnitude of 11.1.[3]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 "JPL Small-Body Database Browser: 3015 Candy (1980 VN)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2003015. 
  2. ↑ 2.0 2.1 2.2 2.3 Schmadel, Lutz D. (2007). "(3015) Candy". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 248. doi:10.1007/978-3-540-29925-7_3016. ISBN 978-3-540-00238-3. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 "LCDB Data for (3015) Candy". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=3015%7CCandy. 
  4. ↑ 4.0 4.1 4.2 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J. et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal 741 (2): 20. doi:10.1088/0004-637X/741/2/68. Bibcode: 2011ApJ...741...68M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M. Retrieved 4 September 2017. 
  5. ↑ 5.0 5.1 5.2 5.3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D. et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal 741 (2): 25. doi:10.1088/0004-637X/741/2/90. Bibcode: 2011ApJ...741...90M. 
  6. ↑ 6.0 6.1 Clark, Maurice (April 2012). "Asteroid Lightcurves from the Preston Gott Observatory". Minor Planet Bulletin 39 (2): 63–65. ISSN 1052-8091. Bibcode: 2012MPBu...39...63C. http://www.minorplanet.info/MPB/issues/MPB_39-2.pdf. Retrieved 18 March 2020. 
  7. ↑ 7.0 7.1 Clark, Maurice (March 2007). "Lightcurve Results for 1318 Nerina, 222 Lermontov 3015 Candy, 3089 Oujianquan, 3155 Lee, 6410 Fujiwara, 6500 Kodaira, (8290) 1992 NP, 9566 Rykhlova, (42923) 1999 SR18, and 2001 FY". Minor Planet Bulletin 34 (1): 19–22. ISSN 1052-8091. Bibcode: 2007MPBu...34...19C. http://www.minorplanet.info/MPB/issues/MPB_34-1.pdf. Retrieved 18 March 2020. 
  8. ↑ 8.0 8.1 Clark, Maurice (January 2016). "Asteroid Photometry from the Preston Gott Observatory". Minor Planet Bulletin 43 (1): 2–5. ISSN 1052-8091. Bibcode: 2016MPBu...43....2C. http://www.minorplanet.info/MPB/issues/MPB_43-1.pdf. Retrieved 18 March 2020. 
  9. ↑ 9.0 9.1 Clark, Maurice (January 2015). "Asteroid Photometry from the Preston Gott Observatory". Minor Planet Bulletin 42 (1): 15–20. ISSN 1052-8091. Bibcode: 2015MPBu...42...15C. http://www.minorplanet.info/MPB/issues/MPB_42-1.pdf. Retrieved 18 March 2020. 
  10. ↑ 10.0 10.1 10.2 Clark, Maurice (January 2016). "Shape Modelling of Asteroids 1708 Polit, 2036 Sheragul, and 3015 Candy". Minor Planet Bulletin 43 (1): 80–86. ISSN 1052-8091. Bibcode: 2016MPBu...43...80C. http://www.minorplanet.info/MPB/issues/MPB_43-1.pdf. Retrieved 18 March 2020. 
  11. ↑ 11.0 11.1 11.2 11.3 Durech, J.; Hanus, J.; Oszkiewicz, D.; Vanco, R. (March 2016). "Asteroid models from the Lowell photometric database". Astronomy and Astrophysics 587: 6. doi:10.1051/0004-6361/201527573. Bibcode: 2016A&A...587A..48D. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016A&A...587A..48D. Retrieved 4 September 2017. 
  12. ↑ 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. doi:10.1016/j.icarus.2015.08.007. Bibcode: 2015Icar..261...34V. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V. Retrieved 4 September 2017. 
  13. ↑ 13.0 13.1 "3015 Candy (1980 VN)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=3015. 
  14. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html. 

External links



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