Eric J. Christensen discovered the comet on 26 May 2003 in images taken with the 0.7-m Schmidt telescope of the Catalina Sky Survey. The comet had an estimated magnitude of 14.6 and a coma with an estimated diameter between 10 and 35 arcseconds and a faint tail.[1] Further observations revealed the comet had a short orbital period.[6]
In mid December 2008, Australian comet-hunter Alan Watson spotted in the STEREO/SECCHI Heliospheric Imager ("HI") HI-1B data a cometary object. Veteran German comet hunter Rainer Kracht recorded a few positions of the comet in the data and produced a set of very approximate orbital elements for it.[5] Maik Meyer noticed the similarity of these orbital elements to those of P/2003 K2 and the link was confirmed by Brian Marsden.[5][7] This was the first recovery by a spacecraft of a single-apparition comet (a comet that had only been observed to pass the Sun once) by a spacecraft.[5] The comet was observed from the ground on 31 November 2008, with an estimated magnitude of 11.[8]
The comet has been locked in a 2:1 orbital resonance with Jupiter for the last 10,000 years and could be of asteroidal origin.[4]
Referencesedit
^ abcGreen, Daniel (27 May 2003). "IAUC 8136: C/2003 K2; 2003ej, 2003ek,, 2003el". www.cbat.eps.harvard.edu. Retrieved 12 December 2023.
^"210P/Christensen". www.aerith.net. Retrieved 12 December 2023.
^ ab"Small-Body Database Lookup: 210P/IRAS". ssd.jpl.nasa.gov. Retrieved 20 July 2023.
^ abFernández, Julio A.; Sosa, Andrea (1 December 2015). "Jupiter family comets in near-Earth orbits: Are some of them interlopers from the asteroid belt?". Planetary and Space Science. 118: 14–24. doi:10.1016/j.pss.2015.07.010.
^ abcd"SECCHI Makes a Fantastic Recovery!". stereo.gsfc.nasa.gov. NASA. 17 December 2008. Retrieved 12 December 2023.
^Green, Daniel (7 June 2003). "IAUC 8145: C/2003 L1; P/2003 K2; C/2003 K4". www.cbat.eps.harvard.edu. Retrieved 12 December 2023.
^Battams, K.; Watson, A.; Kracht, R.; Meyer, M.; Marsden, B. G. (1 December 2008). "Comet P/2008 X4 = P/2003 K2 (Christensen)". International Astronomical Union Circular. 9005: 1. ISSN 0081-0304.
^Kadota, K.; Marsden, B. G. (1 January 2009). "Comet P/2008 X4 (Christensen)". International Astronomical Union Circular. 9008: 2. ISSN 0081-0304.
210p, christensen, jupiter, family, periodic, comet, with, orbital, period, years, discovered, eric, christensen, 2003, images, taken, catalina, survey, recovered, images, obtained, stereo, first, time, single, apparition, comet, recovered, spacecraft, recover. 210P Christensen is a Jupiter family periodic comet with an orbital period of 5 7 years It was discovered by Eric J Christensen on 26 May 2003 in images taken by the Catalina Sky Survey 1 and recovered in images obtained by STEREO the first time a single apparition comet was recovered by a spacecraft 5 210P ChristensenThe recovery image of the comet by STEREO on 13 December 2008Discovery 1 Discovered byEric J ChristensenDiscovery date26 May 2003DesignationsAlternative designationsP 2003 K2 P 2008 X4Orbital characteristics 3 Epoch3 February 2010Aphelion5 817 AUPerihelion0 534 AUSemi major axis3 176 AUEccentricity0 8317Orbital period5 659 yearsInclination10 217 Longitude ofascending node93 872 Argument ofperiapsis345 766 Last perihelion7 April 2020Next perihelion22 November 2025 2 TJupiter2 492Earth MOID0 170 AUJupiter MOID0 018 AUPhysical characteristicsDimensions 1 74 km 4 Comet totalmagnitude M1 14 9 3 Eric J Christensen discovered the comet on 26 May 2003 in images taken with the 0 7 m Schmidt telescope of the Catalina Sky Survey The comet had an estimated magnitude of 14 6 and a coma with an estimated diameter between 10 and 35 arcseconds and a faint tail 1 Further observations revealed the comet had a short orbital period 6 In mid December 2008 Australian comet hunter Alan Watson spotted in the STEREO SECCHI Heliospheric Imager HI HI 1B data a cometary object Veteran German comet hunter Rainer Kracht recorded a few positions of the comet in the data and produced a set of very approximate orbital elements for it 5 Maik Meyer noticed the similarity of these orbital elements to those of P 2003 K2 and the link was confirmed by Brian Marsden 5 7 This was the first recovery by a spacecraft of a single apparition comet a comet that had only been observed to pass the Sun once by a spacecraft 5 The comet was observed from the ground on 31 November 2008 with an estimated magnitude of 11 8 The comet has been locked in a 2 1 orbital resonance with Jupiter for the last 10 000 years and could be of asteroidal origin 4 References edit a b c Green Daniel 27 May 2003 IAUC 8136 C 2003 K2 2003ej 2003ek 2003el www cbat eps harvard edu Retrieved 12 December 2023 210P Christensen www aerith net Retrieved 12 December 2023 a b Small Body Database Lookup 210P IRAS ssd jpl nasa gov Retrieved 20 July 2023 a b Fernandez Julio A Sosa Andrea 1 December 2015 Jupiter family comets in near Earth orbits Are some of them interlopers from the asteroid belt Planetary and Space Science 118 14 24 doi 10 1016 j pss 2015 07 010 a b c d SECCHI Makes a Fantastic Recovery stereo gsfc nasa gov NASA 17 December 2008 Retrieved 12 December 2023 Green Daniel 7 June 2003 IAUC 8145 C 2003 L1 P 2003 K2 C 2003 K4 www cbat eps harvard edu Retrieved 12 December 2023 Battams K Watson A Kracht R Meyer M Marsden B G 1 December 2008 Comet P 2008 X4 P 2003 K2 Christensen International Astronomical Union Circular 9005 1 ISSN 0081 0304 Kadota K Marsden B G 1 January 2009 Comet P 2008 X4 Christensen International Astronomical Union Circular 9008 2 ISSN 0081 0304 External links edit210P Christensen at the JPL Small Body DatabaseClose approach Discovery Ephemeris Orbit diagram Orbital elements Physical parameters Numbered cometsPrevious209P LINEAR 210P Christensen Next211P Hill Retrieved from https en wikipedia org w index php title 210P Christensen amp oldid 1191614616, wikipedia, wiki, book, books, library,
