265 Anna

265 Anna is a typical Main belt asteroid.

DiscoveredbyJohann Palisa

Discoverydate25 February 1887

MPCdesignation

(265) Anna

Pronunciation/ˈænə/^[1]

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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/[1]
Named after	Anny Weiss
Alternative designations	A887 DA, 1933 QN 1933 RC
Minor planet category	Main belt
Orbital characteristics[2]
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° 15m 42.3s / 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

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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.^[3]