| Discovery[1] | |
|---|---|
| Discovered by | L. Chernykh |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 13 October 1966 |
| Designations | |
| (1737) Severny | |
Named after | Andrei Severny (observatory's director)[2] |
| 1966 TJ · 1942 CA 1944 OF · 1950 TM 1950 TP4 · 1951 YF2 1963 DH | |
| main-belt · Eos[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 65.83 yr (24,044 days) |
| Aphelion | 3.1578AU |
| Perihelion | 2.8644 AU |
| 3.0111 AU | |
| Eccentricity | 0.0487 |
| 5.23yr (1,908 days) | |
| 112.51° | |
| Inclination | 9.3772° |
| 327.44° | |
| 221.77° | |
| Physical characteristics | |
| Dimensions | 21.334±0.158[4] 21.40 km(calculated)[3] 21.61±2.7 km[5] 22.793±0.122 km[6] 24.83±1.47 km[7] |
| 9.2481±0.0625h[8] 14.11±0.07 h[9] | |
| 0.1363±0.0267[6] 0.139±0.018[7] 0.14(assumed)[3] 0.175±0.031[4] 0.1811±0.057[5] | |
| S[3] | |
| 10.67±0.58[10] · 10.8[5][7] · 11.0[6] · 11.018±0.002(R)[8] · 11.1[1][3] | |
1737 Severny, provisional designation1966 TJ, is a stony Eoanasteroid from the outer region of theasteroid belt, approximately 21 kilometers in diameter.
It was discovered on 13 October 1966, by Russian astronomerLyudmila Chernykh at theCrimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula, who named after Soviet astronomerAndrei Severny.[2][11]
Severny is a member of theEos family. It orbits the Sun in theouter main-belt at a distance of 2.9–3.2 AU once every 5 years and 3 months (1,908 days). Its orbit has aneccentricity of 0.05 and aninclination of 9° with respect to theecliptic.[1] First identified as1942 CA atTurku, the asteroid's first used observation was made atHeidelberg Observatory in 1950, extendingSeverny'sobservation arc by 16 years prior to its official discovery observation.[11]
Severny has been characterized as a common stonyS-type asteroid.[3]
A rotationallightcurve ofSeverny was obtained by French amateur astronomerLaurent Bernasconi in March 2005. It gave arotation period of 14.11 hours with a brightness variation of 0.14magnitude (U=2).[9]
In September 2013, photometric observations in the R-band at thePalomar Transient Factory, California, gave a shorter period of 9.2481 hours with an amplitude of 0.17 magnitude (U=2).[8]
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,Severny measures between 21.33 and 24.83 kilometers in diameter, and its surface has analbedo between 0.136 and 0.181.[4][5][6][7]
TheCollaborative Asteroid Lightcurve Link assumes a standard albedo for Eoan asteroids of 0.14 and calculates a diameter of 21.40 kilometers with anabsolute magnitude of 11.1.[3]
Thisminor planet was named by the discoverer in honor of Soviet astronomerAndrei Severny (1913–1987), who was the Director of the Crimean Astrophysical Observatory[2] and known for his work onsolar flares and astronomical observations from artificial satellites. The officialnaming citation was published by theMinor Planet Center on 1 October 1969 (M.P.C. 2971).[12]
