1989 Tatry
| Discovery [1][2] | |
|---|---|
| Discovered by | A. Paroubek R. Podstanicka |
| Discovery site | Skalnaté Pleso Obs. |
| Discovery date | 20 March 1955 |
| Designations | |
| MPC designation | 1989 Tatry |
|
Named after
|
High Tatra Mountains[3] |
| 1955 FG · 1935 UQ 1944 DL · 1955 DY 1964 WK · 1968 YC 1971 SJ2 |
|
| main-belt · Vestian [4] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 80.09 yr (29,254 days) |
| Aphelion | 2.5297 AU |
| Perihelion | 2.1723 AU |
| 2.3510 AU | |
| Eccentricity | 0.0760 |
| 3.60 yr (1,317 days) | |
| 307.61° | |
| Inclination | 7.7642° |
| 25.316° | |
| 88.650° | |
| Physical characteristics | |
| Dimensions | 9.87±0.88 km[5] 9.603±0.063 km[6] 8.99±2.38 km[7] 17.60 km (calculated)[4] |
| 131.3 h[8] 39.9±0.1 h[9] 24 h[10] |
|
| 0.262±0.048[5] 0.1917±0.0338[6] 0.240±0.205[7] 0.057 (assumed)[4] |
|
| SMASS = C C [4] |
|
| 12.5[1] | |
1989 Tatry, provisional designation 1955 FG, is a carbonaceous vestian asteroid and slow rotator from the inner regions of the asteroid belt, about 10 kilometers in diameter. It was discovered on 20 March 1955, by the Slovakian astronomers A. Paroubek and R. Podstanicka at Skalnate Pleso Observatory, Slovakia.[2]
Based on its orbital elements, the asteroid is a member of the Vesta family. It orbits the Sun at a distance of 2.2–2.5 AU once every 3 years and 7 months (1,317 days). Its orbit shows an eccentricity of 0.08 and is tilted by 8 degrees to the plane of the ecliptic. According to the surveys carried out by the Japanese Akari satellite and the U.S. Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the body has a high albedo in the range of 0.19–0.26.[5][6][7] However, the Collaborative Asteroid Lightcurve Link (CALL) assumes the body to be a dark C-type asteroid with an albedo of 0.06. As a consequence, CALL calculates a much larger diameter of 18 kilometers for the asteroid, as the lower the albedo (reflectivity), the higher the diameter for a given absolute magnitude (brightness).[4]
Photometric measurements of the asteroid made in 2005 at the U.S. Palmer Divide Observatory showed a light-curve with a period of 39.9±0.1 hours and a brightness variation of below 0.22±0.02 in magnitude. However, the data was incomplete, so the period is considered suspect.[9] Further measurements made in 2007 at the Modra Observatory in Slovakia showed a much longer period of 131.3±0.2 hours with a brightness variation of 0.5 in magnitude.[8]
The minor planet is named after the location of the discovering observatory, High Tatras (Czech: Vysoké Tatry), the highest mountain range in former Czechoslovakia.[3]
References
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- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 4.3 4.4 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 6.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 7.0 7.1 7.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 8.0 8.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 9.0 9.1 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
- 1989 Tatry at the JPL Small-Body Database
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