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David's Comet hunting achievements

David began his telescopic comet search, called CN3, on December 17, 1965.  It has resulted in 9 visual comet discoveries, 13 photographic comet discoveries shared with Gene and Carolyn Shoemaker, 7 books, and a catalogue of more than 300 deep sky objects found on the road to comets.


The 23 comet discoveries tie David for third place in history for the largest number of comet finds by an individual.  Also included is one comet independently discovered and two in which David aided in discovery.

Visually, with backyard telescope:

Comet Levy-Rudenko, 1984t, C/1984 V1, Nov 14, 1984
Comet Levy, 1987a, C/1987 A1, January 5, 1987
Comet Levy, 1987y, C/1987 T1,  October 11, 1987
Comet Levy, 1988e, C/1988 F1,  March 19, 1988
Comet Okazaki-Levy-Rudenko, 1989r, C/1989 Q1, August 25, 1989
Comet Levy, 1990c, C/1990 K1,  May 20, 1990 (This widely visible object was considered the most spectacular  since Halley in 1986)
Periodic Comet Levy, P/1991 L3,  June 14, 1991
Comet Takamizawa-Levy, C/1994 G1, April 15, 1994

Periodic Comet Levy, P/2006 T1, October 2, 2006

Photographically, as part of team of Eugene and Carolyn Shoemaker and David Levy:

Periodic Comet Shoemaker-Levy 1, 1990o, P/1990 V1

Periodic Comet Shoemaker-Levy 2, 1990p, 137 P/1990 UL3

Comet Shoemaker-Levy, 1991d C/1991 B1

Periodic Comet Shoemaker-Levy 3, 1991e, 129P/1991 C1

Periodic Comet Shoemaker-Levy 4, 1991f, 118P/1991 C2

Periodic Comet Shoemaker-Levy 5, 1991z, 145P/1991 T1

Comet Shoemaker-Levy, 1991a1, C/1991 T2

Periodic Comet Shoemaker-Levy 6, 1991b1, P/1991 V1

Periodic Comet Shoemaker-Levy 7, 1991d1, 138P/1991 V2

Periodic Comet Shoemaker-Levy 8, 1992f, 135P/1992 G2

Periodic Comet Shoemaker-Levy 9, 1993e, D/1993 F2 (This comet crashed into Jupiter in 1994, resulting in the most dramatic events ever seen on another world)

Comet Shoemaker-Levy, 1993h, C/1993 K1

Comet Shoemaker-Levy, 1994d,   C/1994 E2

Comet Jarnac; CCD Discovery by Tom Glinos, Wendee Levy and David Levy   C/2010 E2

Other discoveries

Comet Hartley-IRAS, 1983v, P/1983 V1, November 1983 (independent discovery)

Comet Shoemaker 1992y, C/1992 U1 (aided in discovery)

Periodic Comet Shoemaker 4, 1994k, P/1994 J3 (aided in discovery)

Discovered Asteroid 5261 Eureka, the first Martian Trojan asteroid (shares Mars’s orbit), with Henry Holt, June 1990

With Tom Glinos and Wendee, discovered more than 150 asteroids.