.png) Lightcurve-based 3D-model ofCrimea | |
| Discovery[1] | |
|---|---|
| Discovered by | G. Neujmin |
| Discovery site | Simeiz Obs. |
| Discovery date | 30 December 1929 |
| Designations | |
| (1140) Crimea | |
Named after | Crimea (Black Sea peninsula)[2] |
| 1929 YC · A922 HA | |
| main-belt · (middle) | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 82.04 yr (29,966 days) |
| Aphelion | 3.0846AU |
| Perihelion | 2.4579 AU |
| 2.7712 AU | |
| Eccentricity | 0.1131 |
| 4.61yr (1,685 days) | |
| 64.258° | |
| 0° 12m 48.96s / day | |
| Inclination | 14.136° |
| 72.139° | |
| 310.16° | |
| Physical characteristics | |
| Dimensions | 27.75±1.1 km(IRAS:13)[3] 28.87±0.36 km[4] 29.179±0.155 km[5] 29.554±0.205 km[6] |
| 9.77±0.01h[7] 9.784±0.001 h[8] 9.7869±0.0005 h[9] | |
| 0.160±0.023[5] 0.1615±0.0193[6] 0.167±0.005[4] 0.1772±0.014(IRAS:13)[3] | |
| S(Tholen)[1] · S(SMASS)[1] S[10] · B–V = 0.916[1] | |
| 9.58±0.55[11] · 10.28[1][3][4][6][10] | |
1140 Crimea, provisional designation1929 YC, is a stonyasteroid from the middle region of theasteroid belt, approximately 28 kilometers in diameter. It was discovered on 30 December 1929, by Soviet astronomerGrigory Neujmin atSimeiz Observatory on theCrimean peninsula, after which it was named.[2][12]
Crimea is aS-type asteroid in both theTholen andSMASS taxonomic scheme. It orbits the Sun in thecentral main-belt at a distance of 2.5–3.1 AU once every 4 years and 7 months (1,685 days). Its orbit has aneccentricity of 0.11 and aninclination of 14° with respect to theecliptic.[1] First identified asA922 HA at Simeiz in 1922, the body'sobservation arc begins atUccle in 1935, or 16 years after its official discovery observation at Simeiz.[12]
In April 2005, a rotationallightcurve ofCrimea was obtained by American astronomerRobert Stephens at Santana Observatory in California. Lightcurve analysis gave a well-definedrotation period of 9.77 hours with a brightness variation of 0.30magnitude (U=3).[7] Photometric observations by amateur astronomers Federico Manzini andPierre Antonini in March 2014, gave a concurring period of 9.784 hours with an amplitude of 0.23 magnitude (U=2).[8] In addition, a modeled lightcurve using data from the Uppsala Asteroid Photometric Catalogue and other sources gave a period 9.7869 hours, as well as a spin axis of (12.0°, -73.0°) inecliptic coordinates (U=n.a.).[9]
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,Crimea measures between 27.75 and 29.18 kilometers in diameter, and its surface has analbedo between 0.160 and 0.177 (without preliminary results).[3][4][5] TheCollaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.1772 and a diameter of 27.75 kilometers with anabsolute magnitude of 10.28.[10]
Thisminor planet was named for theCrimean Peninsula on the northern coast of theBlack Sea, where the discovering Simeiz Observatory is located.[2] Naming citation was first mentioned inThe Names of the Minor Planets byPaul Herget in 1955 (H 106).[2]
