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265 Anna

A three-dimensional model of 265 Anna based on its light curve
Discovery
Discovered by	Johann Palisa
Discovery date	25 February 1887
Designations
MPC designation	(265) Anna
Pronunciation	/ˈænə/
Named after	Anny Weiss
Alternative designations	A887 DA, 1933 QN 1933 RC
Minor planet category	Main belt
Orbital characteristics
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	115.71 yr (42263 d)
Aphelion	3.06672 AU (458.775 Gm)
Perihelion	1.77398 AU (265.384 Gm)
Semi-major axis	2.42035 AU (362.079 Gm)
Eccentricity	0.26706
Orbital period (sidereal)	3.77 yr (1375.4 d)
Mean anomaly	84.9293°
Mean motion	0° 15 42.3 / day
Inclination	25.6443°
Longitude of ascending node	335.566°
Argument of perihelion	251.567°
Physical characteristics
Dimensions	23.66±3.0 km
Synodic rotation period	11.681 h (0.4867 d)
Geometric albedo	0.1045±0.033
Absolute magnitude (H)	11.9

265 Anna is a typical Main belt asteroid.

It was discovered by Johann Palisa on 25 February 1887 in Vienna and was probably named after Anny Weiss (née Kretschmar), the daughter-in-law of astronomer Edmund Weiss.

References

1. Noah Webster (1884) A Practical Dictionary of the English Language
2. "265 Anna". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
3. Schmadel, Lutz (5 August 2003). Dictionary of Minor Planet Names. Springer Science & Business Media. ISBN 9783540002383 – via Google Books.

External links

• The Asteroid Orbital Elements Database
• Minor Planet Discovery Circumstances
• Minor Planet Lightcurve Parameters
• 265 Anna at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 265 Anna at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

• Minor planet object articles (numbered)
• Background asteroids
• Named minor planets
• Astronomical objects discovered in 1887
• Discoveries by Johann Palisa