15262 Abderhalden
Discovery [1] | |
---|---|
Discovered by |
F. Börngen L. D. Schmadel |
Discovery site | Tautenburg Obs. |
Discovery date | 12 October 1990 |
Designations | |
MPC designation | 15262 Abderhalden |
Named after |
Emil Abderhalden (physiologist)[2] |
1990 TG4 · 1978 PJ3 1978 RM3 · 1999 FO42 | |
main-belt (outer) · Themis [3] | |
Orbital characteristics [1] | |
Epoch 27 June 2015 (JD 2457200.5) | |
Uncertainty parameter 0 | |
Observation arc | 37.36 yr (13,644 days) |
Aphelion | 3.6813 AU |
Perihelion | 2.7386 AU |
3.2100 AU | |
Eccentricity | 0.1468 |
5.75 yr (2,101 days) | |
190.47° | |
Inclination | 0.6373° |
5.6279° | |
287.35° | |
Physical characteristics | |
Dimensions | 8.43 km (calculated)[3] |
±0.0012 3.5327h[4] | |
0.08 (assumed)[3] | |
C [3] | |
13.3[1] | |
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15262 Abderhalden, provisional designation 1990 TG4, is a carbonaceous Themistian asteroid from the outer region of the asteroid belt, about 8 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.[5]
The dark C-type asteroid is a member of the Themis family, a dynamical family of outer-belt asteroids with nearly coplanar ecliptical orbits. It orbits the Sun at a distance of 2.7–3.7 AU once every 5 years and 9 months (2,101 days). Its orbit is tilted to the plane of the ecliptic by 1 degree and shows an eccentricity of 0.15.[1] In 2013, a photometric light-curve observation at the U.S. Palomar Transient Factory survey, California, has given the asteroid a rotation period of ±0.0012 hours with a brightness amplitude of 0.21 in 3.5327magnitude.[4] The Collaborative Asteroid Lightcurve Link (CALL) assumes an albedo of 0.08, a standard albedo for carbonaceous asteroids of this family.[3]
The minor planet was named in memory of Swiss biochemist and physiologist Emil Abderhalden (1877–1950), who lectured at the University of Halle during 1911–1945. He contributed more than 1000 articles to the physiologic chemistry of metabolism, created the basis of modern dietetics, discovered the defensive enzymes against exogenous proteins and promoted social welfare.[2]
References
- 1 2 3 4 "JPL Small-Body Database Browser: 15262 Abderhalden (1990 TG4)" (2015-12-16 last obs.). Jet Propulsion Laboratory. Retrieved January 2016.
- 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (15262) Abderhalden. Springer Berlin Heidelberg. p. 822. ISBN 978-3-540-00238-3. Retrieved January 2016.
- 1 2 3 4 5 "LCDB Data for (15262) Abderhalden". Asteroid Lightcurve Database (LCDB). Retrieved January 2016.
- 1 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. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved January 2016.
- ↑ "15262 Abderhalden (1990 TG4)". Minor Planet Center. Retrieved January 2016.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (15001)-(20000) – Minor Planet Center
- 15262 Abderhalden at the JPL Small-Body Database
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