astro.wikisort.org - Asteroid

4429 Chinmoy, provisional designation 1978 RJ₂, is a Nysian asteroid from the inner regions of the asteroid belt, approximately 3.5 kilometers (2.2 miles) in diameter. It was discovered on 12 September 1978, by Soviet astronomer Nikolai Chernykh at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean Peninsula.[1] The likely S-type asteroid was named after Indian spiritual leader Sri Chinmoy.[1]

4429 Chinmoy

Chinmoy imaged in November 2015
Discovery [1]
Discovered by	N. Chernykh
Discovery site	Crimean Astrophysical Obs.
Discovery date	12 September 1978
Designations
MPC designation	(4429) Chinmoy
Named after	Sri Chinmoy [1] (Indian spiritual leader)
Alternative designations	1978 RJ2 · 1978 RN1 1978 RR4 · 1980 FP2 1980 FX6 · 1987 DL2
Minor planet category	main-belt [1][2] · (inner) Nysa [3]
Orbital characteristics [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc	63.18 yr (23,076 d)
Aphelion	2.8874 AU
Perihelion	1.8728 AU
Semi-major axis	2.3801 AU
Eccentricity	0.2131
Orbital period (sidereal)	3.67 yr (1,341 d)
Mean anomaly	249.44°
Mean motion	0° 16m 6.24s / day
Inclination	1.4590°
Longitude of ascending node	326.92°
Argument of perihelion	68.070°
Physical characteristics
Mean diameter	3.498±0.959 km[4]
Geometric albedo	0.229±0.145[4]
Spectral type	S (Nysian member)[3]
Absolute magnitude (H)	14.6[1][2]

Orbit and classification

Chinmoy is a member of the Nysa family (405),[3] one of the largest asteroid families and part of the Nysa–Polana complex with nearly 20 thousand identified members.[5]

It orbits the Sun in the inner main-belt at a distance of 1.9–2.9 AU once every 3 years and 8 months (1,341 days; semi-major axis of 2.38 AU). Its orbit has an eccentricity of 0.21 and an inclination of 1° with respect to the ecliptic.[2]

The body's observation arc begins with a precovery taken at Palomar Observatory in February 1954, more than 24 years prior to its official discovery observation at Nauchnij.[1]

Physical characteristics

Chinmoy has an absolute magnitude of 14.6.[2] While its spectral type has not been determined, it is likely a stony S-type asteroid based on its membership to the Nysa family and its albedo (see below).[2][3] As of 2018, no rotational lightcurve of Chinmoy has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.[2]

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Chinmoy measures 3.498 kilometers in diameter and its surface has an albedo of 0.229.[4]

Naming

This minor planet was named after Indian spiritual leader Sri Chinmoy (1931–2007).[1] The official naming citation was published by the Minor Planet Center on 25 April 1994 (M.P.C. 23351).[6]

References

External links

• (4429) Chinmoy, at astrode.de (2015), (in German)
• (4429) Chinmoy, orbit at astronomia.zcu.cz
• Dictionary of Minor Planet Names, Google books
• Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
• 4429 Chinmoy at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 4429 Chinmoy at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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[de] (4429) Chinmoy

(4429) Chinmoy ist ein Asteroid des Hauptgürtels, der am 12. September 1978 vom russischen Astronomen Nikolai Stepanowitsch Tschernych am Krim-Observatorium in Nautschnyj (IAU-Code 095) entdeckt wurde.[1]

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- [en] 4429 Chinmoy

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