265 Anna

{{Short description|Main-belt asteroid}}

{{Use dmy dates|date=June 2017}}

{{Infobox planet

| minorplanet=yes

| background=#D6D6D6

| name=265 Anna

| image=265Anna (Lightcurve Inversion).png

| image_size =

| caption=A three-dimensional model of 265 Anna based on its light curve

| discoverer=Johann Palisa

| discovered=25 February 1887

|named_after=Anny Weiss

| mpc_name=(265) Anna

| alt_names=A887 DA, 1933 QN
1933 RC

| pronounced={{IPAc-en|'|æ|n|ə}}Noah Webster (1884) A Practical Dictionary of the English Language

| mp_category=Main belt

| epoch=31 July 2016 (JD 2457600.5)

| semimajor={{Convert|2.42035|AU|Gm|abbr=on}}

| perihelion={{Convert|1.77398|AU|Gm|abbr=on}}

| aphelion={{Convert|3.06672|AU|Gm|abbr=on|lk=on}}

| eccentricity=0.26706

| period=3.77 yr (1375.4 d)

| inclination=25.6443°

| asc_node=335.566°

| arg_peri=251.567°

| mean_anomaly=84.9293°

| dimensions={{val|23.66|3.0|ul=km}}

| mass=

| density=

| rotation={{Convert|11.681|h|d|abbr=on|lk=on}}

| spectral_type=

| abs_magnitude=11.9

| albedo={{val|0.1045|0.033}}

| mean_motion={{Deg2DMS|0.261750|sup=ms}} / day

| orbit_ref={{Cite web |url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=265;cad=1 |title=265 Anna |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=11 May 2016}}

| observation_arc=115.71 yr (42263 d)

| uncertainty=0

}}

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.{{Cite book|url=https://books.google.com/books?id=VoJ5nUyIzCsC&q=Anny&pg=PA36|title=Dictionary of Minor Planet Names|first=Lutz|last=Schmadel|date=5 August 2003|publisher=Springer Science & Business Media|isbn=9783540002383 |via=Google Books}}