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30P/Reinmuth
	The comet on 18 February 2010 by Palomar Transient Factory
Discovery
Discovered by	Karl Reinmuth
Discovery date	February 22, 1928
Designations
Alternative designations	1928 D1, 1934 V1
Orbital characteristics
Epoch	July 1, 2009 (2455013.5)
Aphelion	5.664 AU
Perihelion	1.884 AU
Semi-major axis	3.774 AU
Eccentricity	0.5008
Orbital period	7.33 yr
Inclination	8.13°
Last perihelion	2017-Aug-19; April 19, 2010; December 24, 2002
Next perihelion	2024-Aug-17
Jupiter MOID	0.159 AU (23,800,000 km)

Comet 30P/Reinmuth, also known as Comet Reinmuth 1, is a periodic comet in the Solar System, first discovered by Karl Reinmuth (Landessternwarte Heidelberg-Königstuhl, Germany) on February 22, 1928.

First calculations of orbit concluded a period of 25 years, but this was revised down to seven years and speculation this was the same comet as Comet Taylor, which had been lost since 1915. Further calculations by George van Biesbroeck concluded they were different comets.

The 1935 approach was observed though not as favourable, in 1937 the comet passed close to Jupiter which increased the perihelion distance and orbital period.

Due to miscalculations, the 1942 appearance was missed, but it has been observed on every subsequent appearance since.

The comet nucleus is estimated to be 7.8 kilometers in diameter.^[4]

References

^ ^a ^b Seiichi Yoshida (2009-09-30). "30P/Reinmuth 1". Seiichi Yoshida's Comet Catalog. Retrieved 2010-03-01.
^ ^a ^b Syuichi Nakano (2003-12-08). "30P/Reinmuth 1 (NK 1011)". OAA Computing and Minor Planet Sections. Retrieved 2010-03-01.
^ MPC
^ ^a ^b "JPL Small-Body Database Browser: 30P/Reinmuth 1". Jet Propulsion Laboratory. 2010-01-04. Retrieved 2010-02-26.