_Komarov.png) Shape model ofKomarov from itslightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | N. Chernykh |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 26 July 1971 |
| Designations | |
| (1836) Komarov | |
Named after | Vladimir Komarov(Soviet cosmonaut)[2] |
| 1971 OT · 1952 KA1 1952 MT · 1961 JG 1962 SG | |
| main-belt · (middle) Dora[3] | |
| Orbital characteristics[1] | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 63.89 yr (23,334 days) |
| Aphelion | 3.3187AU |
| Perihelion | 2.2523 AU |
| 2.7855 AU | |
| Eccentricity | 0.1914 |
| 4.65yr (1,698 days) | |
| 308.73° | |
| 0° 12m 43.2s / day | |
| Inclination | 7.0195° |
| 272.76° | |
| 12.344° | |
| Physical characteristics | |
| Dimensions | 21.16 km(calculated)[4] 21.55±6.10 km[5] 21.84±6.55 km[6] 22.240±0.304 km[7][8] 22.86±0.73 km[9] 25.40±9.32 km[10] |
| 8.8015±0.0004 h[11] 9.695±0.005h[a] | |
| 0.042±0.005[7][8] 0.043±0.019[10] 0.05±0.05[5] 0.057(assumed)[4] 0.06±0.06[6] 0.103±0.007[9] | |
| SMASS = Ch[1] · C[4][12] | |
| 11.30[9] · 11.9[7] · 11.98±0.37[12] · 12.00[6][10] · 12.1[1][4] · 12.15[5] | |
1836 Komarov (prov. designation:1971 OT) is a carbonaceous Dorianasteroid from the central region of theasteroid belt, approximately 22 kilometers in diameter. It was discovered on 26 July 1971 by Russian astronomerNikolai Chernykh atCrimean Astrophysical Observatory in Nauchnij on the Crimean peninsula.[13] It was named after Soviet cosmonautVladimir Komarov.[2]
Komarov is a member of theDora family (FIN: 512), a well-established centralasteroid family of more than 1,200 carbonaceous asteroids. The family's namesake is668 Dora. It is alternatively known as the "Zhongolovich family", named after its presumably largest member1734 Zhongolovich. The Dora family may also contain a subfamily.[3][14]: 13, 23
It orbits the Sun at a distance of 2.3–3.3 AU once every 4 years and 8 months (1,697 days). Its orbit has aneccentricity of 0.19 and aninclination of 7° with respect to theecliptic.[1]
Komarov is characterized as a darkC-type asteroid byPan-STARRS photometric survey.[12] It is also classified as a hydrated Ch-subtype in theSMASS classification scheme.[1]
According to the surveys carried out by the JapaneseAkari satellite and NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Komarov measures between 21.55 and 25.40 kilometers in diameter and its surface has analbedo between 0.042 and 0.103.[5][6][7][8][9][10] TheCollaborative Asteroid Lightcurve Link assumes a standard albedo forcarbonaceous asteroids of 0.057 and calculates a diameter of 21.16 kilometers based on anabsolute magnitude of 12.1.[4]
In July 2008, two rotationallightcurve ofKomarov were independently obtained from photometric observations by astronomers Julian Oey and Peter Caspari. Lightcurve analysis gave arotation period of 8.8015 and 9.695 hours with a brightness amplitude of 0.39 and 0.56magnitude, respectively (U=3/2+).[11][a]
Thisminor planet was named in honor ofVladimir Komarov (1927–1967), Sovietcosmonaut who headed the crewed flight on theVoskhod spacecraft. He was killed when theSoyuz 1 space capsule crashed after re-entry on 24 April 1967, due to a parachute failure.[2][15] The officialnaming citation was published by theMinor Planet Center on 1 June 1975 (M.P.C. 3825).[16]
