{{Short description|Main-belt asteroid}} {{Use dmy dates|date=October 2019}} {{Infobox planet | minorplanet = yes | background = #D6D6D6 | name = 305 Gordonia | image = 305 Gordonia.png | caption = Lightcurve-base 3D-model of 305 Gordonia. | discoverer = Auguste Charlois | discovered = 16 February 1891 | mpc_name = (305) Gordonia | pronounced = {{IPAc-en|g|ɔr|'|d|oʊ|n|i|ə}} | alt_names = A891 DA; {{mp|1938 SC|1}}<br/>{{mp|1970 SP|1}} | mp_category = Main belt | epoch = 31 July 2016 (JD 2457600.5) | semimajor = {{Convert|3.09407|AU|Gm|abbr=on}} | perihelion = {{Convert|2.49627|AU|Gm|abbr=on}} | aphelion = {{Convert|3.69187|AU|Gm|abbr=on|lk=on}} | eccentricity = 0.19321 | period = 5.44 yr (1987.9 d) | inclination = 4.44401° | asc_node = 207.494° | arg_peri = 261.346° | mean_anomaly = 43.0648° | dimensions = {{val|49.17|1.5|ul=km}} | mass = | density = | rotation = {{Convert|12.893|h|d|abbr=on|lk=on}}<ref name="jpldata"/><br />{{nowrap|12.89 ± 0.01 hours}}<ref name=mpb35_4_155/> | spectral_type = | abs_magnitude = 8.77 | albedo = {{val|0.2269|0.014}} | mean_motion = {{Deg2DMS|0.181096|sup=ms}} / day | orbit_ref = <ref name="jpldata">{{Cite web |url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=305;cad=1 |title=305 Gordonia |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=11 May 2016}}</ref> | observation_arc = 123.90 yr (45255 d) | uncertainty = 0 }}
'''305 Gordonia''' is a fairly typical, although sizeable Main belt asteroid.<ref name = comet>Dynamics of comets and asteroids and their role in earth history. Shin Yabushita, J. Henrard. p.243</ref>
It was discovered by Auguste Charlois on 16 February 1891 in Nice and named after James Gordon Bennett Jr., his patron.
The light curve of 305 Gordonia shows a periodicity of {{nowrap|12.89 ± 0.01 hours}}, during which time the brightness of the object varies by {{nowrap|0.17 ± 0.03}} in magnitude.<ref name=mpb35_4_155/>
==References== <references>
<ref name=mpb35_4_155>{{citation | display-authors=1 | last1=Menke | first1=John | last2=Cooney | first2=Walt | last3=Gross | first3=John | last4=Terrell | first4=Dirk | last5=Higgins | first5=David | title=Asteroid Lightcurve Analysis at Menke Observatory | journal=The Minor Planet Bulletin | volume=35 | issue=4 | pages=155–160 | bibcode=2008MPBu...35..155M |date=October 2008}}</ref>
</references> <!-- end of reflist -->
== External links == * {{AstDys|305}} * {{JPL small body}}
{{Minor planets navigator |304 Olga |number=305 |306 Unitas}} {{Small Solar System bodies}} {{Authority control}}
{{DEFAULTSORT:Gordonia}} 000305 Category:Discoveries by Auguste Charlois Category:Named minor planets 000305 18910216
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