• Source: 1306 Scythia

1306 Scythia, provisional designation 1930 OB, is a dark Ursula asteroid from the outer regions of the asteroid belt, approximately 72 kilometers in diameter. It was discovered on 22 July 1930, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The asteroid was named for the historic region of Scythia.




Orbit and classification


Scythia is a member of the Ursula family (631), a mid-sized asteroid family in the outer main-belt.: 23  It orbits the Sun at a distance of 2.9–3.4 AU once every 5 years and 7 months (2,041 days; semi-major axis of 3.15 AU). Its orbit has an eccentricity of 0.09 and an inclination of 15° with respect to the ecliptic. The body's observation arc begins with its official discovery observation at Simeiz in July 1930.




Physical characteristics


In the Tholen classification, Scythia is a stony S-type asteroid, unlike the overall spectral type of the Ursula family which is that of a C- and X-type.: 23 




= Rotation period

=
In September 2003, a rotational lightcurve of Scythia was obtained from photometric observations by Robert Stephens at the Santana Observatory in California. Lightcurve analysis gave a rotation period of 15.05 hours with a brightness variation of 0.15 magnitude (U=2). In August 2008, Pierre Antonini measured a better period solution of 7.525 hours (or half the period) and an amplitude of 0.25 magnitude (U=3).




= Diameter and albedo

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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, Scythia measures between 66.780 and 83.65 kilometers in diameter and its surface has a low albedo between 0.034 and 0.052.
The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.0512 and a diameter of 67.14 kilometers based on an absolute magnitude of 9.71.




Naming


This minor planet was named after the ancient region of Scythia, located east of the Black Sea. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 119).




References






External links


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
1306 Scythia at AstDyS-2, Asteroids—Dynamic Site
Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
1306 Scythia at the JPL Small-Body Database

Kata Kunci Pencarian:

• 1306 Scythia
• Scythia (disambiguation)
• Meanings of minor-planet names: 1001–2000
• Grigory Neujmin
• List of minor planets: 1001–2000
• 1305 Pongola
• 1307 Cimmeria
• Russian names in space
• 2074 Shoemaker
• List of named minor planets: S