136 Austria

136 Austria
	3D convex shape model of 136 Austria
Discovery
Discovered by	Johann Palisa
Discovery site	Austrian Naval Obs.
Discovery date	18 March 1874
Designations
MPC designation	(136) Austria
Named after	Austria
Alternative designations	A874 FA; 1950 HT
Minor planet category	main-belt · (inner); background
Orbital characteristics
	Epoch 23 March 2018 (JD 2458200.5)
	Uncertainty parameter 0
Observation arc	141.11 yr (51,539 d)
\|{{{apsis}}}\|helion}}	2.4812 AU
\|{{{apsis}}}\|helion}}	2.0927 AU
Semi-major axis	2.2869 AU
Eccentricity	0.0849
Orbital period	3.46 yr (1,263 d)
Mean anomaly	102.82°
Mean motion	0° 17m 6s / day
Inclination	9.5788°
Longitude of ascending node	186.46°
\|{{{apsis}}}\|helion}}	2024-Feb-24
\|{{{apsis}}}\|helion}}	132.95°
Physical characteristics
Mean diameter	40.14±1.0 km; 40.14 km
Mass	6.8×1016 kg
Rotation period	11.4969 h (0.47904 d)
Geometric albedo	0.1459±0.007; 0.1459
Spectral type	M
Absolute magnitude (H)	9.69

Short description: Main-belt asteroid

Austria (minor planet designation: 136 Austria) is a main-belt asteroid that was found by the prolific asteroid discoverer Johann Palisa on 18 March 1874, from the Austrian Naval Observatory in Pola, Istria.^[5] 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.^[6] 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.^[7]

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.^[4] As of 2013, the estimated rotation period is 11.4969^[8] hours.

References

↑ ^1.0 ^1.1 "136 Austria". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=136. Retrieved 29 May 2018.
↑ ^2.0 ^2.1 ^2.2 ^2.3 ^2.4 "JPL Small-Body Database Browser: 136 Austria". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2000136. Retrieved 29 May 2018.
↑ "Asteroid 136 Austria". Small Bodies Data Ferret. https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=136+Austria. Retrieved 29 May 2018.
↑ ^4.0 ^4.1 ^4.2 ^4.3 Schober, H. J. (January 1983), "Rotation periods and lightcurves of the asteroids 136 Austria and 238 Hypatia", Astronomy and Astrophysics 117 (2): pp. 362–364, Bibcode: 1983A&A...117..362S.
↑ Albrecht, R. et al. (July 2001), "Early asteroid research in Austria", Planetary and Space Science 49 (8): pp. 777–779, doi:10.1016/S0032-0633(01)00027-7, Bibcode: 2001P&SS...49..777A.
↑ 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 175 (1): pp. 141–158, doi:10.1016/j.icarus.2004.10.017, Bibcode: 2005Icar..175..141H.
↑ Behrend, Raoul (in French), Courbes de rotation d'astéroïdes et de comètes, Observatoire de Genève, http://obswww.unige.ch/~behrend/page_cou.html, retrieved 2013-03-30

External links

136 Austria at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
136 Austria at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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Original source: https://en.wikipedia.org/wiki/136 Austria. Read more

[MPC-object-1] 1.0 ^1.1 "136 Austria". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=136. Retrieved 29 May 2018.

[jpldata-2] 2.0 ^2.1 ^2.2 ^2.3 ^2.4 "JPL Small-Body Database Browser: 136 Austria". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2000136. Retrieved 29 May 2018.

[Ferret-3] "Asteroid 136 Austria". Small Bodies Data Ferret. https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=136+Austria. Retrieved 29 May 2018.

[Schober1983-4] 4.0 ^4.1 ^4.2 ^4.3 Schober, H. J. (January 1983), "Rotation periods and lightcurves of the asteroids 136 Austria and 238 Hypatia", Astronomy and Astrophysics 117 (2): pp. 362–364, Bibcode: 1983A&A...117..362S.

[Albrecht2001-5] Albrecht, R. et al. (July 2001), "Early asteroid research in Austria", Planetary and Space Science 49 (8): pp. 777–779, doi:10.1016/S0032-0633(01)00027-7, Bibcode: 2001P&SS...49..777A.

[Clark1994-6] 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.

[Hardersen1983-7] 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 175 (1): pp. 141–158, doi:10.1016/j.icarus.2004.10.017, Bibcode: 2005Icar..175..141H.

[Behrend-8] Behrend, Raoul (in French), Courbes de rotation d'astéroïdes et de comètes, Observatoire de Genève, http://obswww.unige.ch/~behrend/page_cou.html, retrieved 2013-03-30