1340 Yvette, provisional designation 1934 YA, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 29 kilometers in diameter. It was discovered on 27 December 1934, by astronomer Louis Boyer at the Algiers Observatory, who named it after his niece, Yvette.[2][14]
Orbit and classification
Yvette is a Themistian asteroid that belongs to the Themis family (602),[3][4] a very large family of nearly 5,000 member asteroids, named after 24 Themis.[15]: 23 It orbits the Sun in the outer main belt at a distance of 2.8–3.6 AU once every 5 years and 8 months (2,075 days; semi-major axis of 3.18 AU). Its orbit has an eccentricity of 0.13 and an inclination of 0° with respect to the ecliptic.[1]
The asteroid was first identified as 1930 DO at Heidelberg Observatory in February 1930. The body's observation arc begins with its official discovery observation at Algiers in 1934.[14]
Published in 2004, a first rotational lightcurve of Yvette was obtained from photometric observations by Brazilian and Argentinian astronomers. Lightcurve analysis gave a relatively short rotation period of 3.525 hours with a brightness amplitude of 0.16 magnitude (U=2).[12]
The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is an albedo of 0.0958 and a diameter of 25.87 kilometers based on an absolute magnitude of 11.1.[3][5]
^ abcMasiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121.