|Discovered by K. Reinmuth|
MPC designation 1048 Feodosia
Discovered 29 November 1924
Asteroid group Asteroid belt
|Discovery date 29 November 1924|
Minor planet category main-belt · (middle)
Absolute magnitude 9.75
Discoverer Karl Wilhelm Reinmuth
|Named after Feodosiya (Crimean city)|
Alternative names 1924 TP · 1942 XP 1942 XZ · 1959 SK
Discovery site Landessternwarte Heidelberg-Königstuhl
Similar 1056 Azalea, 1002 Olbersia, 1207 Ostenia, 1001 Gaussia, 1111 Reinmuthia
1048 Feodosia, provisional designation 1924 TP, is a carbonaceous asteroid from the middle region of the asteroid belt, approximately 70 kilometers in diameter. It was discovered on 29 November 1924, by German astronomer Karl Reinmuth at Heidelberg Observatory in southwest Germany.
The dark C-type asteroid is classified as a XC and Ch intermediary type in the Tholen and SMASS taxonomy, respectively. Feodosia orbits the Sun at a distance of 2.2–3.2 AU once every 4 years and 6 months (1,650 days). Its orbit has an eccentricity of 0.18 and an inclination of 16° with respect to the ecliptic. The body's observation arc begins at Johannesburg, 3 years after its official discovery observation at Heidelberg. On 22 November 2005, it occulted the star TYC 1236-138 as seen from Earth.
In March 1985, a rotational lightcurve of Feodosia was obtained by European astronomer at ESO's La Silla Observatory in Chile, using the Bochum 0.61-metre Telescope during three nights. It gave a rotation period of 10.46 hours with a brightness variaton of 0.14 magnitude (U=2). The asteroid was also observed by French amateur astronomer Pierre Antonini in January 2007, and by the Spanish Observadores de Asteroides (OBAS) group in February 2016. However, the obtained lightcurves were only fragmentary and gave a divergent period of 23 and 35.2 hours with and amplitude of 0.04 and 0.13 magnitude, respectively (U=1+/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, the asteroid measures between 54.98 and 85.14 kilometers in diameter, and its surface has an albedo between 0.031 and 0.06. The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.0452 and a diameter of 70.16 kilometers based on an absolute magnitude of 9.75.
This minor planet was named for the city Feodosiya on the Crimean peninsula. The named was proposed by I. Putilin, who computed the body's orbital elements.