1540 Kevola
1540 Kevola, provisional designation , is a dark background asteroid from the outer regions of the asteroid belt, approximately 42 kilometers in diameter. It was discovered on 16 November 1938, by astronomer Liisi Oterma at the Iso-Heikkilä Observatory in Turku, Finland. The asteroid was named after the Finnish Kevola Observatory. Orbit and classification Kevola is a non-family asteroid of the main belt's background population. It orbits the Sun in the outer asteroid belt at a distance of 2.6–3.1 AU once every 4 years and 10 months (1,758 days). Its orbit has an eccentricity of 0.09 and an inclination of 12° with respect to the ecliptic. The body's observation arc begins with its first identification as at Heidelberg Observatory in April 1926, more than 12 years prior to its official discovery observation at Turku. Naming This minor planet was named for the Finnish Kevola Observatory . The official was published by the Minor Planet Center on 20 February 1976 (). Physical characteristics Kevola is an assumed carbonaceous C-type asteroid. Rotation period In February 2007, a rotational lightcurve of Kevola was obtained from photometric observations by French amateur astronomer Pierre Antonini. Lightcurve analysis gave a rotation period of 20.082 hours with a