332P/Ikeya–Murakami
comet
332P/Ikeya–Murakami (P/2010 V1) is a short-period comet with period of approximately 5.4 years first identified independently by the two Japanese amateur astronomers Kaoru Ikeya and Shigeki Murakami on November 3, 2010. As 332P/Ikeya–Murakami only approaches within 1.57 AU of the Sun, roughly Mars distance from the Sun, the fragmentation events may be a result of rapid rotation. The comet was last observed in October 2020 as during the 2021 perihelion passage the comet was only 7 degrees from the Sun. The comet will next come to perihelion in January 2027 when it will have a solar elongation of 100 degrees.
Observational history
Ikeya identified the comet using a 25-centimeter (10-inch) reflector at 39×, while Murakami used a 46 cm (18-inch) reflector at 78×. Photographic confirmation of the comet was obtained by Ernesto Guido and Giovanni Sostero using a Global-Rent-a-Scope (GRAS) telescope in New Mexico. Both Ikeya and Murakami discovered the comet using manual observation through optical telescopes. Such visual discoveries have become rare in recent years.
At the start of November 2010, a few weeks past perihelion passage, it was discovered the comet had undergone a major outburst between October 31 and November 3. After the 2010 perihelion passage, the comet only had about an 80-day observation arc.
The public source identifies “332P/Ikeya–Murakami” as comet. This brief keeps that definition visible, then builds a research path around 332P, Ikeya and Murakami.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Oct 16, 2025. The linked authority identifier is Q3887904. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2010, 2020, 2021 and 2027.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “332P/Ikeya–Murakami” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.