Astronomy:15262 Abderhalden

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15262 Abderhalden
Discovery[1]
Discovered byF. Börngen
L. D. Schmadel
Discovery siteTautenburg Obs.
Discovery date12 October 1990
Designations
(15262) Abderhalden
Named afterEmil Abderhalden
(Swiss physiologist)[2]
1990 TG4 · 1978 PJ3
1978 RM3 · 1999 FO42
Minor planet categorymain-belt · Themis[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc38.82 yr (14,178 days)
|{{{apsis}}}|helion}}3.6694 AU
|{{{apsis}}}|helion}}2.7536 AU
3.2115 AU
Eccentricity0.1426
Orbital period5.76 yr (2,102 days)
Mean anomaly326.73°
Mean motion0° 10m 16.68s / day
Inclination0.6286°
Longitude of ascending node5.7800°
287.51°
Physical characteristics
Dimensions8.43 km (calculated)[3]
12.201±0.545 km[4][5]
Rotation period3.5327±0.0012 h[6]
Geometric albedo0.062±0.029[4][5]
0.08 (assumed)[3]
C[3]
Absolute magnitude (H)13.2[4] · 13.282±0.004 (R)[6] · 13.3[1] · 13.43±0.23[7] · 13.73[3]


15262 Abderhalden, provisional designation 1990 TG4, is a carbonaceous Themistian asteroid from the outer region of the asteroid belt, approximately 12 kilometers in diameter.

It was discovered by German astronomers Freimut Börngen and Lutz Schmadel at the Karl Schwarzschild Observatory in Tautenburg, eastern Germany, on 12 October 1990.[8] The asteroid was named after Swiss physiologist and biochemist Emil Abderhalden.[2]

Orbit and classification

Abderhalden is a member of the Themis family, a dynamical family of outer-belt asteroids with nearly coplanar ecliptical orbits. It orbits the Sun in the outer main-belt at a distance of 2.8–3.7 AU once every 5 years and 9 months (2,102 days). Its orbit has an eccentricity of 0.14 and an inclination of 1° with respect to the ecliptic.[1] The first precovery was obtained at Crimea–Nauchnij in 1978, extending the asteroid's observation arc by 12 years prior to its discovery.[8]

Physical characteristics

Rotation period

In October 2013, a rotational lightcurve of Abderhalden was obtained from photometric observation taken by astronomers at the Palomar Transient Factory in California. Lightcurve analysis gave a rotation period of 3.5327 hours with a brightness variation of 0.21 magnitude ({{{1}}}).[6]

Diameter and albedo

The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.08, a standard albedo for carbonaceous asteroids of the Themis family, and calculates a diameter of 8.4 kilometers,[3] while the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer finds an albedo of 0.062 with a corresponding diameter of 12.2 kilometers and an absolute magnitude of 13.2.[4]

Naming

This minor planet was named in memory of Swiss biochemist and physiologist Emil Abderhalden (1877–1950). He was a researcher in the field of physiological chemistry, founder of modern dietetics, and promoter of public welfare. Abderhalden taught physiology at the Martin Luther University of Halle-Wittenberg from 1911 until the end of World War II.[2] The approved naming citation was published by the Minor Planet Center on 13 October 2000 (M.P.C. 41387).[9]

References

  1. ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 15262 Abderhalden (1990 TG4)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2015262. 
  2. ↑ 2.0 2.1 2.2 Schmadel, Lutz D. (2007). "(15262) Abderhalden". Dictionary of Minor Planet Names – (15262) Abderhalden. Springer Berlin Heidelberg. p. 822. doi:10.1007/978-3-540-29925-7_9115. ISBN 978-3-540-00238-3. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "LCDB Data for (15262) Abderhalden". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=15262%7CAbderhalden. 
  4. ↑ 4.0 4.1 4.2 4.3 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. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...90M. Retrieved 26 April 2016. 
  5. ↑ 5.0 5.1 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 3 December 2016. 
  6. ↑ 6.0 6.1 6.2 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. doi:10.1088/0004-6256/150/3/75. Bibcode: 2015AJ....150...75W. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W. Retrieved 26 April 2016. 
  7. ↑ 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 26 April 2016. 
  8. ↑ 8.0 8.1 "15262 Abderhalden (1990 TG4)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=15262. 
  9. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html. 

External links



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