Klim Ivanovich Churyumovand Svetlana Ivanovna Gerasimenko
September 20, 1969
designations=1982 VIII; 1982f; 1989 VI; 1988i; 1969 R1; 1969 IV; 1969h; 1975 P1; 1976 VII; 1975i
September 3, 2002(JD 2452520.5)
August 18, 2002
March 13, 2009
67P/Churyumov-Gerasimenko is the designation of a
cometwith a current orbital periodof 6.6 years. It is the destination [cite journal | author=Krolikowska, Malgorzata | title=67P/Churyumov-Gerasimenko - potential target for the Rosetta mission | journal=Acta Astronomica | year=2003 | volume=53 | pages=195–209 |id=arXiv|astro-ph|0309130 ] of the European Space Agency's Rosetta spacecraftmission, launched on March 2, 2004.
Comet physical parameters
Diameter: 4 km
, were closely analyzed. An overall 3-D model was constructed and computer generated images from various view angles are shown in this composite picture.
This comet was discovered by
Klim Ivanovich Churyumovwho examined a photographexposed for periodic comet 32P/Comas Soláby Svetlana Gerasimenko on September 11, 1969at the Alma-Ata Astrophysical Institute. He found a cometary object near the edge of the plate, but assumed that this was Comas Solá. After returning to his home institute in Kiev, all photographic plates were investigated closely.About a month after the photograph was taken ( October 22), it was discovered that the object could not be the assumed comet, because it was about 1.8 degrees off the expected position. Further scrutiny produced a faint picture of Comas Solá at its expected position on the plate, thus proving that the other object was a newly discovered comet.
Churyumov-Gerasimenko has a rather interesting
orbital history. Comets are regularly nudged from one orbit to another when they encounter Jupiter or Saturn in close proximity. For this comet it was calculated, that before the year 1840it was completely unobservable due to its periheliondistance of about 4.0 AU. At this time Jupiter shifted that distance to about 3.0 AU. Later on, in the year 1959, another encounter with Jupiter pushed it to about 1.28 AU, where it is now.
* [http://www.iac.es/galeria/mrk/comets/67p/67p.htm Detailed description of 67P with light curves and pictures]
* [http://cometography.com/pcomets/067p.html 67P on Kronk's Cometography]
* [http://www.spacetelescope.org/images/html/heic0310a.html 67P/Churymuov-Gerasimenko at ESA/Hubble]
* [http://www.astrometrica.at/images/200402.html Color image of 67P/Churymuov-Gerasimenko]
*JPL Small Body
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