| Discovery[1] | |
|---|---|
| Discovered by | Indiana University (Indiana Asteroid Program) |
| Discovery site | Goethe Link Obs. |
| Discovery date | 8 October 1953 |
| Designations | |
| (1762) Russell | |
Named after | Henry Norris Russell[2] (American astronomer)[2] |
| 1953 TZ · 1947 LM 1953 TW2 · 1956 GF 1963 VN | |
| main-belt · (outer) Koronis[3][4] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 69.52 yr (25,393 days) |
| Aphelion | 3.0998AU |
| Perihelion | 2.6514 AU |
| 2.8756 AU | |
| Eccentricity | 0.0780 |
| 4.88yr (1,781 days) | |
| 21.771° | |
| 0° 12m 7.56s / day | |
| Inclination | 2.2793° |
| 160.64° | |
| 233.54° | |
| Physical characteristics | |
| Dimensions | 15.61 km(calculated)[3] 16.576±0.195 km[5] 16.93±0.97 km[6] 17.03±0.21 km[7] 17.033±0.209 km[7] |
| 12.797±0.007h[8] | |
| 0.118±0.015[6] 0.1227±0.0369[5] 0.201±0.022[7] 0.24(assumed)[3] | |
| S[3] | |
| 11.20[7][1][3] · 11.69±0.12[9] · 11.80[6][5] | |
1762 Russell, provisional designation1953 TZ, is a stony Koronianasteroid from the outer regions of theasteroid belt, approximately 16 kilometers in diameter. It was discovered by theIndiana Asteroid Program atGoethe Link Observatory near Brooklyn, Indiana, on 8 October 1953.[10] The asteroid was named after American astronomerHenry Norris Russell.[2]
Russell is a member of theKoronis family (605), a very large outerasteroid family with nearly co-planar ecliptical orbits.[3][4] It orbits the Sun in theouter main-belt at a distance of 2.7–3.1 AU once every 4 years and 11 months (1,781 days). Its orbit has aneccentricity of 0.08 and aninclination of 2° with respect to theecliptic.[1]
The asteroid was first identified as1947 LM atLowell Observatory in June 1947.The body'sobservation arc begins with aprecovery at Goethe Link Observatory in February 1950, more than 3 years prior to its official discovery observation.[10]
Russell is an assumed stonyS-type asteroid, which agrees with the overallspectral type of the Koronis family.[3][11]: 23
In April 2014, a rotationallightcurve ofRussell was obtained from photometric observations at the Sonoita Research Observatory (G93) and Etscorn Campus Observatory (719). Lightcurve analysis gave arotation period of 12.797 hours with a brightness variation of 0.46magnitude (U=3-).[8]
According to the surveys carried out by the JapaneseAkari satellite and theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Russell measures between 16.576 and 17.033 kilometers in diameter and its surface has analbedo between 0.118 and 0.201.[5][6][7]
TheCollaborative Asteroid Lightcurve Link assumes an albedo of 0.24 and calculates a diameter of 15.61 kilometers based on anabsolute magnitude of 11.2.[3]
Thisminor planet was named after distinguished American astronomerHenry Norris Russell (1877–1957), noted for theH–R diagram and research on a variety of topics in fundamental astronomy, astrophysics, and the analysis of atomic spectra(seeRussell–Saunders coupling).[2]
The officialnaming citation was published by theMinor Planet Center on 20 February 1971 (M.P.C. 3143).[12] Russell is also honored by botha lunar anda Martian crater.[2]
