Английская Википедия:1277 Dolores
Шаблон:Use dmy dates Шаблон:Infobox planet
1277 Dolores (prov. designation: Шаблон:Mp) is a carbonaceous background asteroid from the central regions of the asteroid belt, approximately Шаблон:Convert in diameter. It was discovered on 18 April 1933, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula.[1] The asteroid was named after Spanish communist Dolores Ibárruri.[2]
Orbit and classification
Dolores is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.[3] It orbits the Sun in the central main belt at a distance of 2.1–3.3 AU once every 4 years and 5 months (1,621 days). Its orbit has an eccentricity of 0.24 and an inclination of 7° with respect to the ecliptic.[4] The asteroid was first identified as Шаблон:Mp at Simeiz Observatory in September 1925. The body's observation arc begins at Yerkes Observatory (or Simeiz) in June 1933, approximately 2 months after its official discovery observation.[1]
Naming
This minor planet was named after Spanish communists Dolores Ibárruri (1895–1989). Known as "La Pasionária" (Passionflower), she co-founded the communist party in Spain in 1920, and lead the party while in exile. Dolores Ibárruri returned to Spain in 1977, and became a member of the parliament. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (Шаблон:Small).[2]
Physical characteristics
In the Tholen classification, Dolores is a carbonaceous C-type asteroid, while in the SMASS classification, it is classified as a Cb-subtype, that transitions to the brighter B-type asteroids.[4] It has also been characterized as a C-type by Pan-STARRS photometric survey.[5]
Rotation period
In July 2000, a rotational lightcurve of Dolores was obtained from photometric observations by American astronomer Robert Stephens. Lightcurve analysis gave a well-defined rotation period of 17.19 hours with a brightness amplitude of 0.45 magnitude (Шаблон:Small), indicative of a somewhat elongated shape.[6]
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Dolores measures between 23.72 and 32.59 kilometers in diameter and its surface has an albedo between 0.063 and 0.095.[7][8][9][10] The Collaborative Asteroid Lightcurve Link adopts the result obtained by IRAS, that is, an albedo of 0.0879 and a diameter of 27.64 kilometers based on an absolute magnitude of 11.05.[11][9]
References
External links
- Lightcurve Database Query (LCDB), at www.minorplanet.info
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies
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- Английская Википедия
- Background asteroids
- Discoveries by Grigory Neujmin
- Named minor planets
- C-type asteroids (Tholen)
- Cb-type asteroids (SMASS)
- Astronomical objects discovered in 1933
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