|Discovered by||Minoru Honda|
|Discovery date||December 3, 1948|
|Orbital characteristics A|
|Semi-major axis||3.0205 AU|
|Orbital period||5.25 yr|
|Last perihelion||September 28, 2011
June 29, 2006
March 29, 2001
December 25, 1995
45P/Honda–Mrkos–Pajdušáková is a short-period comet discovered by Minoru Honda December 3, 1948. The comet is named after Minoru Honda, Antonín Mrkos, and Ľudmila Pajdušáková. The comet is on an elliptical orbit with a period of 5.26 years. The comet nucleus is estimated to be 0.5-1.6 kilometers in diameter. During the 2011 perihelion passage the comet was recovered on 5 June 2011 at apparent magnitude 21. On 8 July 2011 the comet had a magnitude of approximately 18, and as of 22 July 2011 the comet's nuclear condensation had a magnitude of approximately 16. The comet is expected to reach a peak magnitude of around 7.3 in late September when it is near perihelion.
The comet made a close approach of only 0.0600 AU (8,980,000 km; 5,580,000 mi) from the Earth on August 15, 2011, and was studied by the Goldstone Deep Space Network on August 19 and 20. Goldstone radar observations on 2011 August 19 and 20 detected echoes from the nucleus and coma. This is only the fifteenth comet that has been detected with radar. The comet will also pass close to Earth on February 11, 2017.
- "JPL Small-Body Database Browser: 45P/Honda-Mrkos-Pajdusakova". Jet Propulsion Laboratory. 2011-06-12 last obs. Retrieved 2011-06-11. Check date values in:
- Seiichi Yoshida (2007-04-19). "45P/Honda-Mrkos-Pajdusakova". Seiichi Yoshida's Comet Catalog. Retrieved 2010-03-01.
- Syuichi Nakano (2006-06-30). "45P/Honda-Mrkos-Pajdusakova (NK 1357)". OAA Computing and Minor Planet Sections. Retrieved 2010-03-01.
- Syuichi Nakano (2011-09-10). "45P/Honda-Mrkos-Pajdusakova (NK 2118)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-18.
- "45P/Honda-Mrkos-Pajdusakova". Gary W. Kronk's Cometography. Retrieved 2007-03-25.
- Dr. Lance A. M. Benner (2011-07-22). "45P Honda-Mrkos-Pajdusakova Goldstone Radar Observations Planning". NASA/JPL Asteroid Radar Research. Retrieved 2011-07-22.
- "MPEC 2011-L51 : OBSERVATIONS AND ORBITS OF COMETS". IAU Minor Planet Center. 2011-06-12. Retrieved 2011-06-13.
- "MPEC 2011-N34 : OBSERVATIONS AND ORBITS OF COMETS". IAU Minor Planet Center. 2011-07-08. Retrieved 2011-07-09.
- "MPEC 2011-O24 : OBSERVATIONS AND ORBITS OF COMETS". IAU Minor Planet Center. 2011-07-22. Retrieved 2011-07-23.
- "Elements and Ephemeris for 45P/Honda-Mrkos-Pajdusakova". Comet Ephemeris Service @ IAU Minor Planet Center. Retrieved 2011-07-23. (0045P)
- "JPL Close-Approach Data: 45P/Honda-Mrkos-Pajdusakova". 2011-06-08 last obs. Retrieved 2011-06-11. Check date values in:
- "Comet Orbit Home Page". Kazuo Kinoshita. Retrieved 2007-03-25.
- "Goldstone Radar Detection of Comet HMP (Honda–Mrkos–Pajdušáková)". NASA/JPL Asteroid Radar Research. Retrieved 2011-09-28.
|Wikimedia Commons has media related to Comets.|
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- Elements and Ephemeris for 45P/Honda-Mrkos-Pajdusakova – Minor Planet Center
- 45P/Honda-Mrkos-Pajdusakova / 2011 – Seiichi Yoshida @ aerith.net
- 45P/Honda-Mrkos-Pajdušáková @ Royal Astronomical Society of New Zealand
- 45P/Honda-Mrkos-Pajdusakova 2001 passage at Astrosite Groningen (magnitude and coma estimates)
- 45P/H-M-P as seen by STEREO HI2A Comet Al (September 29, 2011)
- 45P as seen by STEREO-A HI-2
- 45P as seen on 2011-Jul-27 by Ernesto Guido, Giovanni Sostero & Nick Howes (GRAS 0.51m f/6.9 reflector)
- Michael Jäger color photo of 45P/Honda on 2011-09-29
- 45P as seen by SOHO on 1996/01/16 00:58 (visible half way between the Sun and the top of the frame)
|Periodic comets (by number)|
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