1648 Shajna
Discovery [1] | |
---|---|
Discovered by | P. Shajn |
Discovery site | Simeiz Observatory |
Discovery date | 5 September 1935 |
Designations | |
MPC designation | 1648 Shajna |
Named after
|
Couple of astronomers (Pelageya and Grigory)[2] |
1935 RF · 1934 CK1 1938 MC · 1941 FD 1948 LC · 1951 EX2 1952 SX · 1952 UW 1955 QT · 1955 RP A921 GB · A924 EQ |
|
main-belt · (inner) [3] | |
Orbital characteristics [1] | |
Epoch 27 June 2015 (JD 2457200.5) | |
Uncertainty parameter 0 | |
Observation arc | 94.55 yr (34,535 days) |
Aphelion | 2.6968 AU |
Perihelion | 1.7750 AU |
2.2359 AU | |
Eccentricity | 0.2061 |
3.34 yr (1,221 days) | |
15.040° | |
Inclination | 4.5721° |
130.42° | |
134.73° | |
Physical characteristics | |
Dimensions | 9.450±0.141 km[4] 8.30±0.30 km[5] 9.23 km (calculated)[3] |
6.4140 h[6][7] | |
0.1906±0.0165[4] 0.247±0.049[5] 0.20 (assumed)[3] |
|
B–V = 0.792 U–B = 0.497 Tholen = S S [3] |
|
12.54 | |
1648 Shajna, provisional designation 1935 RF, is a stony asteroid from the inner regions of the asteroid belt, about 9 kilometers in diameter. It was discovered by Russian female astronomer Pelageya Shajn at the Simeiz Observatory in Crimea on 5 September 1935.[8] Two weeks later, it was independently discovered by Cyril Jackson at Johannesburg Observatory, South Africa.[2]
The asteroid orbits the Sun at a distance of 1.8–2.7 AU once every 3.34 years (1,221 days). Its orbit shows an eccentricity of 0.21 and is tilted by 5 degrees to the plane of the ecliptic. It has a rotation period of 6.4 hours.[6][7] The S-type asteroid's albedo was measured by the WISE/NEOWISE mission and lies in between 0.20 and 0.25.[4][5]
The minor planet was named in honor of the late couple of Russian astronomers Grigory Abramovich Shajn (1892–1956) and the discoverer herself, Pelageya Shajn (1894–1956), first woman ever to discover a minor planet. The asteroid 1190 Pelagia is also named after her, while her husband is honored by the lunar crater Shayn.[2]
References
- ↑ 1.0 1.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 3.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 5.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 7.0 7.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1648 Shajna at the JPL Small-Body Database
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