Reference articles on history, science, culture and more
Encyclopedia

4429 Chinmoy

Main-belt asteroid

Image credit is listed at the end of this article.

4429 Chinmoy, provisional designation 1978 RJ2, is an 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. The likely S-type asteroid was named after Indian spiritual leader Sri Chinmoy.

01Orbit and classification

Chinmoy is a member of the Nysa-Polana complex, a collection of overlapping asteroid families. 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.

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.

02Physical characteristics

Chinmoy has an absolute magnitude of 14.6. While its spectral type has not been determined, it is assumed to be likely a stony S-type asteroid based on its albedo (see below). 4429 Chinmoy appears to be in non-principal axis rotation ("tumbling") with P1= 44.99 ±0.05h main period and P2= 50.35 ±0.08h secondary period (Center for Solar System Studies Observatory, August 2022).

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.

03Naming

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

Watch videos about 4429 ChinmoyExplainers and documentaries on YouTube (opens in a new tab)

Sources and credits

This article is adapted from the Wikipedia article 4429 Chinmoy, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

Images, from Wikimedia Commons:

Fathomly is not affiliated with or endorsed by the Wikimedia Foundation. Spotted a problem? Tell us.