136 Austria
Discovery | |
---|---|
Discovered by | Johann Palisa |
Discovery date | March 18, 1874 |
Designations | |
Named after
|
Austria |
Main belt | |
Orbital characteristics[1] | |
Epoch December 31, 2006 (JD 2454100.5) | |
Aphelion | 371.048 Gm (2.480 AU) |
Perihelion | 313.089 Gm (2.093 AU) |
342.069 Gm (2.287 AU) | |
Eccentricity | 0.085 |
1262.933 d (3.46 a) | |
Average orbital speed
|
19.66 km/s |
14.588° | |
Inclination | 9.570° |
186.536° | |
132.638° | |
Physical characteristics | |
Dimensions | 40.14[2] km |
Mass | 6.8×1016 kg |
0.0112 m/s² | |
0.0212 km/s | |
11.4969[1] h | |
Albedo | 0.1459[2] |
Temperature | ~184 K |
Spectral type
|
M[2] |
9.69 | |
136 Austria is a main-belt asteroid that was found by the prolific asteroid discoverer Johann Palisa on March 18, 1874, from the Austrian Naval Observatory in Pola, Istria.[3] It was his first asteroid discovery and was given the Latin name of his homeland.
Based upon its spectrum, it is classified as an M-type spectrum, although Clark et al. (1994) suggest it may be more like an S-type asteroid.[4] It shows almost no absorption features in the near infrared, which may indicate an iron or enstatite chondrite surface composition. A weak hydration feature was detected in 2006.[5]
Photometric observations of this asteroid at the European Southern Observatory in 1981 gave a light curve with a period of 11.5 ± 0.1 hours and a brightness variation of 0.40 in magnitude.[2] As of 2013, the estimated rotation period is 11.4969[6] hours.
References
- ↑ 1.0 1.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 2.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
<templatestyles src="Asbox/styles.css"></templatestyles>