136 Austria
 3D convex shape model of 136 Austria | |
| Discovery[1] | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery site | Austrian Naval Obs. |
| Discovery date | 18 March 1874 |
| Designations | |
| (136) Austria | |
Named after | Austria |
| A874 FA; 1950 HT | |
| main-belt[1][2]·(inner) background[3] | |
| Orbital characteristics[2] | |
| Epoch23 March 2018 (JD2458200.5) | |
| Uncertainty parameter0 | |
| Observation arc | 141.11yr(51,539 d) |
| Aphelion | 2.4812AU |
| Perihelion | 2.0927 AU |
| 2.2869 AU | |
| Eccentricity | 0.0849 |
| 3.46 yr (1,263 d) | |
| 102.82° | |
| 0° 17m6s/ day | |
| Inclination | 9.5788° |
| 186.46° | |
| 2024-Feb-24 | |
| 132.95° | |
| Physical characteristics | |
| 40.14±1.0km[2] 40.14 km[4] | |
| Mass | 6.8×1016kg |
| 11.4969h(0.47904d)[2] | |
| 0.1459±0.007[2] 0.1459[4] | |
| M[4] | |
| 9.69 | |
Austria(minor planet designation:136 Austria) is amain-beltasteroidthat was found by the prolific asteroid discovererJohann Palisaon 18 March 1874, from theAustrian Naval ObservatoryinPola,Istria.[5]It was his first asteroid discovery and was given the Latin name of hishomeland.
Based upon its spectrum, it is classified as anM-type spectrum,although Clark et al. (1994) suggest it may be more like anS-type asteroid.[6]It shows almost no absorption features in the near infrared, which may indicate an iron orenstatite chondritesurface composition. A weak hydration feature was detected in 2006.[7]
Photometricobservations of this asteroid at theEuropean Southern Observatoryin 1981 gave alight curvewith a period of 11.5 ± 0.1 hours and a brightness variation of 0.40 inmagnitude.[4]As of 2013, the estimated rotation period is 11.4969[8]hours.
References[edit]
- ^ab"136 Austria".Minor Planet Center.Retrieved29 May2018.
- ^abcde"JPL Small-Body Database Browser: 136 Austria"(2018-02-26 last obs.).Jet Propulsion Laboratory.Retrieved29 May2018.
- ^"Asteroid 136 Austria".Small Bodies Data Ferret.Retrieved29 May2018.
- ^abcdSchober, H. J. (January 1983), "Rotation periods and lightcurves of the asteroids 136 Austria and 238 Hypatia",Astronomy and Astrophysics,vol. 117, no. 2, pp. 362–364,Bibcode:1983A&A...117..362S.
- ^Albrecht, R.; et al. (July 2001), "Early asteroid research in Austria",Planetary and Space Science,vol. 49, no. 8, pp. 777–779,Bibcode:2001P&SS...49..777A,doi:10.1016/S0032-0633(01)00027-7.
- ^Clark, B. E.; et al. (March 1994), "Infrared Spectral Observations of Smaller (50 km) Main Belt S, K, and M Type Asteroids",Abstracts of the 25th Lunar and Planetary Science Conference, held in Houston, TX, 14–18 March 1994,pp. 265–266,Bibcode:1994LPI....25..265C.
- ^Hardersen, Paul S.; Gaffey, Michael J.; Abell, Paul A. (January 1983), "Near-IR spectral evidence for the presence of iron-poor orthopyroxenes on the surfaces of six M-type asteroids",Icarus,vol. 175, no. 1, pp. 141–158,Bibcode:2005Icar..175..141H,doi:10.1016/j.icarus.2004.10.017.
- ^Behrend, Raoul,Courbes de rotation d'astéroïdes et de comètes(in French),Observatoire de Genève,retrieved30 March2013
External links[edit]
- 136 AustriaatAstDyS-2, Asteroids—Dynamic Site
- 136 Austriaat theJPL Small-Body Database
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