Discovered by E. Delporte MPC designation 1341 Edmee Orbital period 1,658 days Orbits Sun Discoverer Eugène Joseph Delporte | Discovery date 27 January 1935 Minor planet category main-belt · (middle) Discovered 27 January 1935 Spectral type X-type asteroid | |
Named after Edmée Chandon (astronomer) Alternative names 1935 BA · 1929 WB1
1932 NK · 1957 YK
1963 KJ · A917 DA Discovery site Royal Observatory of Belgium Similar 1221 Amor, 2101 Adonis, Sun | ||
1341 Edmée, provisional designation 1935 BA, is a rare-type metallic asteroid from the middle region of the asteroid belt, approximately 27 kilometers in diameter. It was discovered on 27 January 1935, by Belgian astronomer Eugène Joseph Delporte at Uccle Observatory in Belgium.
Edmée is classified as a rare XB-type in the Tholen taxonomy, an intermediary between the X and B type asteroids. It orbits the Sun at a distance of 2.5–3.0 AU once every 4 years and 6 months (1,658 days). Its orbit has an eccentricity of 0.08 and an inclination of 13° with respect to the ecliptic. It was first identified as A917 DA at Heidelberg Observatory in 1917. The body's observation arc begins at Uccle, on the night following its official discovery observation in 1935.
American astronomer Robert Stephens obtained several rotational light-curves of Edmée between 2004 and 2014. Best rated results include an observation taken at the Goat Mountain Research Observatory (G79) during the body's 2009-opposition, which gave a rotation period of 23.745 hours with a brightness variation of 0.05 magnitude (U=2+), superseding an alternative period solution of 11.89 (U=2). Because Edmée's rotation is similar to that of Earth, photometric observations are challenging. In 2013, a much shorter period was derived from a fragmentary light-curve obtained at the Palomar Transient Factory in California (U=1).
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Edmée measures between 23.86 and 27.49 kilometers in diameter, and its surface has an albedo between 0.137 and 0.182. The Collaborative Asteroid Lightcurve Link adopt the results from IRAS, that is, an albedo of 0.1371 and a diameter of 27.49 kilometers using an absolute magnitude of 10.58.
This minor planet was named in honour of French astronomer Edmée Chandon. Naming citation was first mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 122).