View source for 203 Pompeja

<!-- Additional parameters for this template  are available at [[Template:Infobox Planet]]. -->{{Infobox planet
 | discovery=yes
 | physical_characteristics = yes | bgcolour=#FFFFC0
 | name=203 Pompeja
 | discoverer=[[Christian Heinrich Friedrich Peters|C. H. F. Peters]]
 | discovered=September 25, 1879
 | alt_names=A895 EA
 | named_after = [[Pompeii]]
 | mp_category=[[Asteroid belt|Main belt]]
 | epoch=30 January 2005 ([[Julian day|JD]] 2453400.5)
 | semimajor=2.736 [[Astronomical unit|AU]]
 | perihelion=2.57 AU
 | aphelion=2.902 AU
 | eccentricity=0.061
 | period=1653.102 d (4.53 [[Julian year (astronomy)|a]])
 | inclination=3.185°
 | asc_node=348.019°
 | arg_peri=59.83°
 | mean_anomaly=210.675°
 | avg_speed=18.01 km/s
 | dimensions=116.0 km
 | mass=
 | density=
 | surface_grav=
 | escape_velocity=
 | rotation=24.052<ref name="mpb39_3_99"/> h
 | spectral_type=DCX:
 | abs_magnitude=8.76
 | albedo=0.041
 | single_temperature=
}}

'''203 Pompeja''' is a quite large [[Asteroid belt|main-belt]] [[asteroid]].

It was discovered by [[Christian Heinrich Friedrich Peters|C. H. F. Peters]] on September 25, 1879, in [[Clinton, Oneida County, New York|Clinton, New York]], and named after [[Pompeii]], the [[Roman Empire|Roman]] town destroyed in [[volcano|volcanic]] eruption in [[79|79 AD]].

Based upon [[Photometry (astronomy)|Photometric]] observations taken during 2011, it has a synodic [[rotation period]] of 24.052 ± 0.001 h, with a peak-to-peak amplitude of 0.10 ± 0.01 in [[Magnitude (astronomy)|magnitude]]. Because the rotation period nearly matches that of the Earth, it required coordinated observations from multiple observatories at widely spaced latitudes to produce a complete [[light curve]].<ref name="mpb39_3_99"/>

== References ==
{{Reflist|refs=

<ref name="mpb39_3_99">{{citation | display-authors=1
 | last1=Pilcher | first1=Frederick
 | last2=Ferrero | first2=Andrea
 | last3=Hamanowa | first3=Hiromi
 | last4=Hamanowa | first4=Hiroko
 | title=Rotation Period Determination for 203 Pompeja - Another Triumph of Global Collaboration
 | journal=The Minor Planet Bulletin | volume=39 | issue=3
 | page=99 | date=July 2012 | bibcode=2012MPBu...39...99P
}}</ref>

}}
*[ftp://ftp.lowell.edu/pub/elgb/astorb.html The Asteroid Orbital Elements Database]
*[http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html Minor Planet Discovery Circumstances]
*[http://www.psi.edu/pds/archive/lc.html Asteroid Lightcurve Parameters]
*[http://www.psi.edu/pds/archive/albedo.html Asteroid Albedo Compilation]

{{Minor planets navigator|202 Chryseïs|204 Kallisto}}
{{Small Solar System bodies}}

{{DEFAULTSORT:000203}}
[[Category:Main-belt asteroids]]
[[Category:Asteroids named for places|Pompeja]]
[[Category:Astronomical objects discovered in 1879|18790925]]
[[Category:Discoveries by Christian Peters]]
[[Category:Numbered asteroids]]
[[Category:Dcx:-type asteroids (Tholen)]]

{{beltasteroid-stub}}