|Discovered by||E. Bowell|
|Discovery site||Anderson Mesa Stn.|
|Discovery date||7 October 1986|
|MPC designation||(3850) Peltier|
(American amateur astronomer)
|1986 TK2 · 1949 PC|
1969 OC1 · 1979 OX13
|main-belt · Flora |
|Orbital characteristics |
|Epoch 4 September 2017 (JD 2458000.5)|
|Uncertainty parameter 0|
|Observation arc||47.47 yr (17,339 days)|
|3.34 yr (1,220 days)|
|0° 17m 42.36s / day|
|Dimensions||4.00 km (calculated)|
±0.0001 h 2.4289
|SMASS = V  · V |
|13.6 · ±0.3713.62|
3850 Peltier, provisional designation 1986 TK2, is a Florian asteroid and suspected interloper from the inner regions of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 7 October 1986, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station, near Flagstaff, Arizona. The asteroid was named after American amateur astronomer Leslie Peltier.
Orbit and classification
In the SMASS taxonomy, Peltier is a V-type asteroid but possesses the orbital characteristics of a member of the Flora family, which is one of the largest groups of stony S-type asteroids in the main-belt. It is therefore thought to be an unrelated interloper that does not origin from the Flora family's parent body. Peltier orbits the Sun in the inner main-belt at a distance of 1.9–2.6 AU once every 3 years and 4 months (1,220 days). Its orbit has an eccentricity of 0.16 and an inclination of 5° with respect to the ecliptic. In 1949, it was first identified as 1949 PC at Johannesburg. The body's observation arc begins at Crimea-Nauchnij in 1979, when it was identified as 1979 OX13, 10 years prior to its official discovery observation at Anderson Mesa.
A rotational lightcurve of Peltier was obtained by Czech astronomer Petr Pravec at Ondřejov Observatory in October 2006.[b] Lightcurve analysis gave a rotation period of 2.4287 hours with a brightness variation of 0.09 magnitude (U=2).[a] In December 2013, photometric observations by Australian amateur astronomer Julian Oey gave a concurring period of 2.4289 hours and an amplitude of 0.10 magnitude (U=3).
Diameter and albedo
Peltier has not been observed by any space-based surveys such as the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, or NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for V-type asteroids of 0.40 and calculates a diameter of 4.00 kilometers using an absolute magnitude of 13.6.
This minor planet was named in memory of American amateur astronomer Leslie Peltier (1900–1980), who has discovered 12 comets and several novae including Nova Herculis 1963. Naming citation was provided by David H. Levy and published by the MPC on 20 May 1989 (M.P.C. 14633).
- Pravec (2013) web: rotation period ±0.0002 hours with a brightness amplitude of 2.4287 mag. Summary figures for (3850) Peltier at 0.09Collaborative Asteroid Lightcurve Link (CALL) and Pravec, P.; Wolf, M.; Sarounova, L. (2013)
- Rotational lightcurve plot of (3850) Peltier by Petr Pravec, Ondrejov Asteroid Photometry Project
- "JPL Small-Body Database Browser: 3850 Peltier (1986 TK2)" (2017-01-27 last obs.). Jet Propulsion Laboratory. Retrieved 19 June 2017.
- Schmadel, Lutz D. (2007). "(3850) Peltier". Dictionary of Minor Planet Names – (3850) Peltier. Springer Berlin Heidelberg. pp. 326–327. doi:10.1007/978-3-540-29925-7_3842. ISBN 978-3-540-00238-3.
- "LCDB Data for (3850) Peltier". Asteroid Lightcurve Database (LCDB). Retrieved 5 February 2017.
- Oey, Julian; Vilagi, J.; Gajdos, S.; Kornos, L.; Galad, A. (September 2007). "Light curve Analysis of 8 Asteroids from Leura and Other Collaborating Observatories". The Minor Planet Bulletin. 34 (3): 81–83. Bibcode:2007MPBu...34...81O. ISSN 1052-8091. Retrieved 5 February 2017.
- 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 5 February 2017.
- "3850 Peltier (1986 TK2)". Minor Planet Center. Retrieved 5 February 2017.
- "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 5 February 2017.
- Nova Herculis 1963, October 1963, SAO/NASA ADS Astronomy Abstract Service
- 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 (1)-(5000) – Minor Planet Center
- 3850 Peltier at the JPL Small-Body Database