1340 Yvette, provisional designation1934 YA, is a carbonaceous Themistianasteroid from the outer regions of theasteroid belt, approximately 29 kilometers in diameter. It was discovered on 27 December 1934, by astronomerLouis Boyer at theAlgiers Observatory, who named it after his niece, Yvette.[2][14]
Yvette is a Themistian asteroid that belongs to theThemis family (602),[3][4] a very largefamily of nearly 5,000 member asteroids, named after24 Themis.[15]: 23 It orbits the Sun in theouter 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 aneccentricity of 0.13 and aninclination of 0° with respect to theecliptic.[1]
The asteroid was first identified as1930 DO atHeidelberg Observatory in February 1930. The body'sobservation arc begins with its official discovery observation at Algiers in 1934.[14]
Published in 2004, a first rotationallightcurve ofYvette was obtained from photometric observations by Brazilian and Argentinian astronomers. Lightcurve analysis gave a relatively shortrotation period of 3.525 hours with a brightness amplitude of 0.16magnitude (U=2).[12]
TheCollaborative 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 anabsolute 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.
