1190 Pelagia
1190 Pelagia, provisional designation, is a dark Nysian asteroid from the inner regions of the asteroid belt, approximately 17 kilometers in diameter. It was discovered on 20 September 1930, by Soviet–Georgian astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after astronomer Pelageya Shajn.
Classification and orbit
Pelagia is a member of the Nysa family, a prominent family of the inner main-belt, named after 44 Nysa.It orbits the Sun at a distance of 2.1–2.8 AU once every 3 years and 9 months. Its orbit has an eccentricity of 0.13 and an inclination of 3° with respect to the ecliptic. The asteroid's observation arc begins at Heidelberg Observatory in January 1909, when it was identified as, more than 21 years prior to its official discovery observation at Simeiz.
Physical characteristics
The asteroid has been characterized as an X-type asteroid by Pan-STARRS photometric survey.Lightcurve
In December 2010, a rotational lightcurve of Pelagia was obtained from photometric observations by Japanese astronomer couple Hiromi and Hiroko Hamanowa. Lightcurve analysis gave a well-defined rotation period of 2.3661 hours with a brightness amplitude of 0.08 magnitude.While not being a fast rotator, the body has a notably short period for an asteroid of its size. Based on the lightcurve's low amplitude, it appears to have a rather spheroidal shape.