397 Vienna

Vienna (minor planet designation: 397 Vienna) is a typical Main belt asteroid. The Tholen spectral type is S and the SMASSII spectral type is K.

397 Vienna

Discovery
Discovered by	Auguste Charlois
Discovery date	19 December 1894
Designations
MPC designation	(397) Vienna
Pronunciation	/viˈɛnə/[1]
Named after	Vienna
Alternative designations	1894 BM
Minor planet category	Main belt
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	117.48 yr (42909 d)
Aphelion	3.28657 AU (491.664 Gm)
Perihelion	1.98686 AU (297.230 Gm)
Semi-major axis	2.63671 AU (394.446 Gm)
Eccentricity	0.24646
Orbital period	4.28 yr (1563.8 d)
Mean anomaly	202.358°
Mean motion	0° 13^m 48.731^s / day
Inclination	12.8534°
Longitude of ascending node	227.935°
Argument of perihelion	139.975°
Physical characteristics
Dimensions	43.34±1.8 km
Rotation period	15.48 h (0.645 d)
Geometric albedo	0.1776±0.015
Absolute magnitude (H)	9.31

It was discovered by Auguste Charlois on 19 December 1894 in Nice.

References

1. "Vienna". Lexico UK Dictionary. Oxford University Press.
2. "397 Vienna (1894 BM)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 10 May 2016.

• Yeomans, Donald K. (2 May 2007). "397 Vienna (1894 BM)". JPL Small-Body Database Browser. Retrieved 2 May 2007.

External links

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