| Discovery[1] | |
|---|---|
| Discovered by | L. Chernykh |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 24 January 1968 |
| Designations | |
| (1771) Makover | |
Named after | Samuel Makover(astronomer)[2] |
| 1968 BD · 1937 LM 1938 QJ · 1941 FH 1950 XW · 1952 FU 1958 HF · 1961 XV 1966 UC | |
| main-belt · (outer)[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 78.58 yr (28,700 days) |
| Aphelion | 3.6697AU |
| Perihelion | 2.5742 AU |
| 3.1219 AU | |
| Eccentricity | 0.1755 |
| 5.52yr (2,015 days) | |
| 59.003° | |
| 0° 10m 43.32s / day | |
| Inclination | 11.249° |
| 86.335° | |
| 316.67° | |
| Physical characteristics | |
| Dimensions | 46.886±0.293 km[4] 51.202±0.294 km[5] 56.59 km(derived)[3] 63.59±19.06 km[6] |
| 11.26±0.01h[7] | |
| 0.025±0.019[6] 0.0382(derived)[3] 0.0614±0.0097[5] 0.072±0.008[4] | |
| C[3][8] | |
| 10.1[5] · 10.4[1][3] · 10.59[6] · 10.60±0.27[8] | |
1771 Makover, provisional designation1968 BD, is a carbonaceousasteroid from the outer region of theasteroid belt, approximately 50 kilometers in diameter.
It was discovered on 24 January 1968, by Russian astronomerLyudmila Chernykh at theCrimean Astrophysical Observatory in Nauchnyj on the Crimean peninsula.[9] It was named after Russian astronomerSamuel Makover.[2]
The darkC-type asteroid orbits the Sun in theouter main-belt at a distance of 2.6–3.7 AU once every 5 years and 6 months (2,015 days). Its orbit has aneccentricity of 0.18 and aninclination of 11° with respect to theecliptic.[1] AtJohannesburg Observatory,Makover was first identified as1937 LM in 1937. Its first used observation was made at the same observatory one year later, when it was identified as1938 QJ, extending the body'sobservation arc by 30 years prior to its official discovery observation.[9]
In December 2011, a rotationallightcurve ofMakover was obtained by astronomer Andrea Ferrero from photometric observation. It gave a well-definedrotation period of 11.26 hours with a brightness variation of 0.25magnitude (U=3).[7]
According to the survey carried out by NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Makover measures between 46.89 and 63.59 kilometers in diameter, and its surface has analbedo between 0.025 and 0.072.[4][5][6] TheCollaborative Asteroid Lightcurve Link derives an albedo of 0.0382 and a diameter of 56.59 kilometers with anabsolute magnitude of 10.4.[3]
Thisminor planet was named in honor of Russian astronomer Samuel Gdalevich Makover (1908–1970), who studied extensively the orbit ofEncke's Comet (referred to as Comet Encke-Backlund in Russia), and pioneered in the use of electronic calculators for computing planetaryperturbations and orbit improvements. He was head of the Institute of Theoretical Astrophysics's (ITA) department of minor planets and comets, and editor of the annual volume of Minor Planet Ephemerides. He was also a vice-president ofIAU's commission 20,Positions & Motions of Minor Planets, Comets & Satellites, in the 1960s.[2] The officialnaming citation was published by theMinor Planet Center on 25 September 1971 (M.P.C. 3185).[10]
