The comet required binoculars to be seen because of the low surface brightness. By February 4, 2017, it was around magnitude 7 and the coma was about 100,000 km across. 2017 passage Ĥ5P/Honda–Mrkos–Pajdušáková came to perihelion on December 31, 2016. Radar observations on August 19 and 20 detected echoes from the nucleus and coma. On August 15, 2011, the comet made a close approach of only 0.0600 AU (8,980,000 km 5,580,000 mi) from the Earth and it was studied by the Goldstone Deep Space Network. It was expected to reach a peak magnitude of around 7.3 in late September near perihelion. On 8 July, the comet had a magnitude of approximately 18, and, as of 22 July, nuclear condensation was noticed around magnitude 16. 2011 passage ĭuring the 2011 perihelion passage, the comet was recovered on 5 June at magnitude 21. It is green because it emits diatomic carbon which glows green in the near vacuum of space. ĭuring the 1995 perihelion passage, the comet was visible to Solar and Heliospheric Observatory (SOHO) on January 16, 1996, when the comet was around apparent magnitude 7 and 4.3° from the Sun. On August 19 and 20, 2011, it became the fifteenth comet detected by ground radar telescope. The nucleus is 1.3 kilometers in diameter. The object revolves around the Sun on an elliptical orbit with a period of 5.25 years. It is named after Minoru Honda, Antonín Mrkos, and Ľudmila Pajdušáková. Comet Honda–Mrkos–Pajdušáková on February 10, 2017Ĥ5P/Honda–Mrkos–Pajdušáková is a short-period comet discovered by Minoru Honda December 3, 1948.
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