astro.wikisort.org - Asteroid

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.[6] The asteroid was named after American amateur astronomer Leslie Peltier.[2]

3850 Peltier

Discovery [1]
Discovered by	E. Bowell
Discovery site	Anderson Mesa Stn.
Discovery date	7 October 1986
Designations
MPC designation	(3850) Peltier
Named after	Leslie Peltier (American amateur astronomer)[2]
Alternative designations	1986 TK2 · 1949 PC 1969 OC1 · 1979 OX13 1982 OW
Minor planet category	main-belt · Flora [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	47.47 yr (17,339 days)
Aphelion	2.5967 AU
Perihelion	1.8718 AU
Semi-major axis	2.2342 AU
Eccentricity	0.1622
Orbital period (sidereal)	3.34 yr (1,220 days)
Mean anomaly	126.84°
Mean motion	0° 17m 42.36s / day
Inclination	5.2687°
Longitude of ascending node	124.13°
Argument of perihelion	207.30°
Physical characteristics
Dimensions	4.00 km (calculated)[3]
Synodic rotation period	2.4287±0.0002 h[lower-alpha 1] 2.4289±0.0001 h[4]
Geometric albedo	0.4 (assumed)[3]
Spectral type	SMASS = V [1] · V [3]
Absolute magnitude (H)	13.6[1][3] · 13.62±0.37[5]

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.[1] 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.[6]

Physical characteristics

Rotation period

A rotational lightcurve of Peltier was obtained by Czech astronomer Petr Pravec at Ondřejov Observatory in October 2006.[lower-alpha 2] Lightcurve analysis gave a rotation period of 2.4287 hours with a brightness variation of 0.09 magnitude (U=2).[lower-alpha 1] 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).[4]

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.[3]

Naming

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.[2] Naming citation was provided by David H. Levy and published by the MPC on 20 May 1989 (M.P.C. 14633).[7]

Notes

References

External links

• Nova Herculis 1963, October 1963, SAO/NASA ADS Astronomy Abstract Service
• Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
• 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 AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 3850 Peltier at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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- [en] 3850 Peltier

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[ru] (3850) Пельтье

(3850) Пельтье (англ. Peltier) — астероид из группы главного пояса. Его открыл 7 октября 1986 года американский астроном Эдвард Боуэлл в обсерватории Андерсон Меса и назвал в честь другого американского астронома Лесли Пельтье  (англ.) (рус.[1].

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