| Discovery[1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 29 November 1924 |
| Designations | |
| (1048) Feodosia | |
Named after | Feodosiya(Crimean city)[2] |
| 1924 TP · 1942 XP 1942 XZ · 1959 SK | |
| main-belt · (middle)[3] | |
| Orbital characteristics[1] | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 91.51 yr (33,425 days) |
| Aphelion | 3.2268AU |
| Perihelion | 2.2377 AU |
| 2.7323 AU | |
| Eccentricity | 0.1810 |
| 4.52yr (1,650 days) | |
| 352.46° | |
| 0° 13m 5.52s / day | |
| Inclination | 15.809° |
| 52.766° | |
| 183.31° | |
| Physical characteristics | |
| Dimensions | 54.98±22.14 km[4] 58.31±12.99 km[5] 62.218±1.596 km[6] 70.16±1.8 km(IRAS:9)[7] 85.14±1.17 km[8] |
| 10.46h[9] 23±1 h[10] 35.20±0.23 h[11] | |
| 0.031±0.001[8] 0.0452±0.002(IRAS:9)[7] 0.05±0.04[4] 0.057±0.008[6] 0.06±0.04[5] | |
| B–V = 0.709[1] U–B = 0.309[1] XC(Tholen)[1] · Ch(SMASS)[1] · C[3] | |
| 9.66[5] · 9.75[1][3][4][6][7][8] | |
1048 Feodosia, provisional designation1924 TP, is a carbonaceousasteroid from the middle region of theasteroid belt, approximately 70 kilometers in diameter.
It was discovered on 29 November 1924, by German astronomerKarl Reinmuth atHeidelberg Observatory in southwest Germany, and named for the Crimean city ofFeodosiya.[2][12]
Feodosia orbits the Sun in themiddle main-belt at a distance of 2.2–3.2 AU once every 4 years and 6 months (1,650 days). Its orbit has aneccentricity of 0.18 and aninclination of 16° with respect to theecliptic.[1] The body'sobservation arc begins atJohannesburg, 3 years after its official discovery observation at Heidelberg.[12] On 22 November 2005, itocculted the starTYC 1236-138 as seen from Earth.[13]
The darkC-type asteroid is classified as a XC and Ch intermediary type in theTholen andSMASS taxonomy, respectively.[1]
In March 1985, a rotationallightcurve ofFeodosia was obtained by European astronomer at ESO'sLa Silla Observatory in Chile, using theBochum 0.61-metre Telescope during three nights. It gave arotation period of 10.46 hours with a brightness variation of 0.14magnitude (U=2).[9]
The asteroid was also observed by French amateur astronomerPierre Antonini in January 2007, and by the SpanishObservadores 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).[10][11]
According to the surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite, and NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission, the asteroid measures between 54.98 and 85.14 kilometers in diameter, and its surface has analbedo between 0.031 and 0.06.[4][5][6][7][8] TheCollaborative 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 anabsolute magnitude of 9.75.[3]
Thisminor planet was named for the cityFeodosiya on the Crimean peninsula. The named was proposed by I. Putilin, who computed the body'sorbital elements.[2]
