|Born||Donald Edward Machholz
October 7, 1952
Portsmouth, Virginia, United States
|Spouse(s)||Michele AnneLouise Machholz|
He is the most successful living visual comet hunter in the world, being credited with the discovery of 11 comets, including the periodic comets 96P/Machholz, 141P/Machholz, the non-periodic C/2004 Q2 (Machholz) that was easily visible in binoculars in the northern sky in 2004 and 2005, and most recently, C/2010 F4 (Machholz). In 1985, comet Machholz 1985-e, was discovered using a homemade cardboard telescope with a wide aperture, 10 inches across, that gave it a broader field of view than most commercial telescopes. Amateur astronomer Machholz utilizes a variety of methods in his comet discoveries, in 1986 using 29×130 binoculars he discovered 96P/Machholz. 
- 1978 Tuthill Comet Award Roger Tuthill for discovering Comet Machholz (1978L)
- 1985 Tuthill Comet Award Roger Tuthill for discovering Comet Machholz (1986e)
- 1986 Tuthill Comet Award Roger Tuthill for discovering Periodic Comet Machholz 1 (1986e)
- 1994 Walter H. Haas Award Association of Lunar and Planetary Observers
- 2000 Peggy Haas Service Award Association of Lunar and Planetary Observers Service to Association of Lunar and Planetary Observers
- 2005 Edgar Wilson Award Harvard's Smithsonian Astrophysical Observatory for discovering Comet Machholz C/2004 Q2
- 2010 Edgar Wilson Award Harvard's Smithsonian Astrophysical Observatory for discovering Comet Machholz C/2010 F4
- The Observing Guide to the Messier Marathon: A Handbook and Atlas
- Decade of Comets: A Study of the 33 Comets Discovered by Amateur Astronomers Between 1975 and 1984
- An observer's guide to comet Hale-Bopp: Making the most of Comet Hale-Bopp : when and where to observe Comet Hale-Bopp and what to look for
- Gus Thomson (March 30, 2010). "Patience leads to new comet discovery by Colfax amateur astronomer". Auburn Journal. Retrieved March 30, 2010.
- Roger W. Sinnott (March 27, 2010). "New Comet Machholz". Sky & Telescope. Retrieved March 30, 2010.
- Associated Press (June 16, 1985). "Amateur Astronomer Nails Down His Second Comet". Los Angeles Times. Retrieved June 16, 1985. Check date values in:
- Alan MacRobert (December 2, 2008). "A Very Oddball Comet". Sky & Telescope. Retrieved December 2, 2008.
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