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 5.25 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.