Editing 264 Libussa (section)

{{Short description|Main belt asteroid}}
{{Use dmy dates|date=October 2019}}
{{Infobox planet
 | minorplanet=yes
 | background=#D6D6D6
 | name=264 Libussa
 | image=264Libussa (Lightcurve Inversion).png
 | image_scale =
 | caption=A three-dimensional model of 264 Libussa based on its light curve
 | discoverer=[[Christian Heinrich Friedrich Peters|C. H. F. Peters]]
 | discovered=22 December 1886
 | mpc_name=(264) Libussa
 | pronounced= {{IPA|de|ˈliːbʊsaː|lang}}
 | alt_names=A886 YA
 | named_after=[[Libuše]]
 | mp_category=[[Asteroid belt|Main belt]]
 | epoch=31 July 2016 ([[Julian day|JD]] 2457600.5)
 | orbit_ref=<ref name="JPL"/>
 | semimajor={{Convert|2.79681|AU|Gm|abbr=on}}
 | perihelion={{Convert|2.41375|AU|Gm|abbr=on}}
 | aphelion={{Convert|3.1799|AU|Gm|abbr=on|lk=on}}
 | eccentricity=0.13696
 | period=4.68 [[Julian year (astronomy)|yr]] (1708.4 [[Julian year (astronomy)|d]])
 | inclination=10.426°
 | asc_node=49.608°
 | arg_peri=340.891°
 | mean_anomaly=254.88[[Degree (angle)|°]]
 | avg_speed=17.81 km/s
 | dimensions={{val|50.48|2.7|ul=km}}
 | mass=
 | density=
 | rotation={{Convert|9.2276|h|d|abbr=on|lk=on}}<ref name="JPL"/><ref name="Pilcher2009"/>
 | spectral_type=[[S-type asteroid|S]]
 | abs_magnitude=8.42
 | albedo={{val|0.2971|0.034}}
 | single_temperature=
 | mean_motion={{Deg2DMS|0.21072|sup=ms}} / day
 | observation_arc=123.02 yr (44934 d)
 | uncertainty=0
}}

'''264 Libussa''' is a [[Asteroid belt|Main belt]] [[asteroid]] that was discovered by [[Christian Heinrich Friedrich Peters|C. H. F. Peters]] on December 22, 1886, in [[Clinton, Oneida County, New York|Clinton, New York]] and was named after [[Libuše|Libussa]], the legendary founder of [[Prague]].<ref>{{cite book | chapter=(264) Libussa | title=Dictionary of Minor Planet Names – (264) Libussa | publisher=[[Springer Berlin Heidelberg]] | date=2007 | last=Schmadel | first=Lutz D. | page=38 | isbn=978-3-540-00238-3 | doi=10.1007/978-3-540-29925-7_265}}</ref> It is classified as an [[S-type asteroid]].

[[Photometry (astronomy)|Photometric]] observations of this asteroid at the Organ Mesa Observatory in [[Las Cruces, New Mexico]], in 2008 gave an asymmetrical, bimodal [[light curve]] with a period of 9.2276 ± 0.0002 hours and a brightness variation of 0.33 ± 0.03 in [[Magnitude (astronomy)|magnitude]].<ref name="Pilcher2009"/> Observation from the [[W. M. Keck Observatory]] show an [[angular size]] of 57 mas, which is close to the resolution limit of the instrument. The estimated maximum size of the asteroid is about 66 ± 7&nbsp;km. It has an asymmetrical shape with a size ratio of more than 1.22 between the major and minor axes.<ref name="Marchis2006"/>

Between 2005 and 2021, 264 Libussa has been observed to [[Occultation|occult]] five stars.