Henry E. Holt (27 September 1929 - 5 May 2019)[2] was an American astronomer and prolific discoverer of minor planets and comets, who has worked as a planetary geologist at the United States Geological Survey and Northern Arizona University.[3]

Henry Holt (right) with Jack Schmitt at the Arizona Bank Building
Minor planets discovered: 689 [1]
see § List of discovered minor planets

Career edit

In the 1960s he studied the photometric properties of the lunar surface as part of the Surveyor and Apollo programs.[3]

Between 1989 and 1993, he has discovered nearly 700 minor planets, and ranks among the Top 30 discoverers in MPC's list.[1] His discoveries including the potentially hazardous asteroid 4581 Asclepius, the numbered asteroid that has made the closest approach to Earth at the time,[3] as well as the near-Earth asteroid 4544 Xanthus, and the main-belt asteroid 6312 Robheinlein, which he named after famous science fiction author, Robert Heinlein.[4] He is also a co-discoverer of the three periodic comets 121P/Shoemaker-Holt, 127P/Holt–Olmstead (discovered with C. Michelle Olmstead), and 128P/Shoemaker-Holt.[5]

Awards and honors edit

The Mars-crossing asteroid 4435 Holt was named in his honor.[3] The official naming citation was published by the Minor Planet Center on 30 January 1991 (M.P.C. 17656).[6]

Minor planet 4582 Hank is named after his son, Henry Reid Holt. [7]

List of discovered minor planets edit

Henry Holt made some of his discoveries in collaboration with: A Norman G. Thomas, B David Levy, C Jeffery A. Brown, D , and Carolyn Shoemaker

4502 Elizabethann 29 May 1989 list
4544 Xanthus 31 March 1989 list[A]
4581 Asclepius 31 March 1989 list[A]
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(43801) 1991 PL15 8 August 1991 list
(43802) 1991 PY18 10 August 1991 list
(43805) 1991 RQ5 13 September 1991 list
(43807) 1991 RC11 13 September 1991 list
(43808) 1991 RF11 13 September 1991 list
(43809) 1991 RE14 13 September 1991 list
(43810) 1991 RJ20 14 September 1991 list
(43811) 1991 RA24 11 September 1991 list
(43812) 1991 RJ29 13 September 1991 list
(43823) 1992 SV24 29 September 1992 list
(43824) 1992 SY24 30 September 1992 list
(46552) 1990 RM1 14 September 1990 list
(46564) 1991 RA11 10 September 1991 list
(46565) 1991 RF17 15 September 1991 list
(46566) 1991 RW21 11 September 1991 list
(46567) 1991 RV23 11 September 1991 list
(46569) 1991 SY1 16 September 1991 list
(48446) 1990 RB1 14 September 1990 list
(48454) 1991 PP12 5 August 1991 list
(48455) 1991 PK13 5 August 1991 list
(48459) 1991 RO5 13 September 1991 list
(48460) 1991 RH6 13 September 1991 list
(48463) 1991 RH14 13 September 1991 list
(48464) 1991 RA17 15 September 1991 list
(48465) 1991 RS20 14 September 1991 list
(48466) 1991 RY29 12 September 1991 list
(48542) 1993 TN13 14 October 1993 list
(52286) 1990 QT1 22 August 1990 list
(52287) 1990 QP4 23 August 1990 list
(52299) 1991 NJ1 12 July 1991 list
(52302) 1991 RL8 12 September 1991 list
(52303) 1991 RU9 10 September 1991 list
(52304) 1991 RB10 12 September 1991 list
(52305) 1991 RR10 10 September 1991 list
(52306) 1991 RF20 14 September 1991 list
(52401) 1993 SS15 19 September 1993 list
(55741) 1990 QZ3 22 August 1990 list
(55752) 1991 PD12 7 August 1991 list
(55754) 1991 RP18 13 September 1991 list
(55792) 1993 SV3 18 September 1993 list
(58166) 1990 OF3 29 July 1990 list
(58167) 1990 QM3 28 August 1990 list
(58169) 1990 SD3 18 September 1990 list
(58173) 1990 SS10 16 September 1990 list
(58174) 1990 SZ10 20 September 1990 list
(58175) 1990 SE15 17 September 1990 list
(58176) 1990 SN16 17 September 1990 list
(58265) 1993 TJ12 14 October 1993 list
(65682) 1990 QU2 24 August 1990 list
(65683) 1990 QW5 29 August 1990 list
(65684) 1990 QY5 29 August 1990 list
(65691) 1991 PT10 7 August 1991 list
(69315) 1992 UR2 20 October 1992 list
(69329) 1993 GH1 15 April 1993 list
(73683) 1990 RV3 14 September 1990 list
(73684) 1990 SV 16 September 1990 list
(73694) 1991 RL15 15 September 1991 list
(73695) 1991 RL17 11 September 1991 list
(73696) 1991 RQ19 14 September 1991 list
(73697) 1991 RT29 12 September 1991 list
(73714) 1992 SW14 30 September 1992 list
(79137) 1991 PD15 6 August 1991 list
(85176) 1990 RP2 15 September 1990 list
(85177) 1990 SE3 18 September 1990 list
(85187) 1991 PC12 7 August 1991 list
(85188) 1991 PK12 7 August 1991 list
(85193) 1991 RD19 14 September 1991 list
(85254) 1993 TG12 14 October 1993 list
(90719) 1991 RZ5 13 September 1991 list
(90720) 1991 RS19 14 September 1991 list
(90721) 1991 RC29 13 September 1991 list
(96184) 1990 QH3 28 August 1990 list
(100020) 1990 QH4 23 August 1990 list
(100035) 1991 PO8 5 August 1991 list
(100036) 1991 PM14 6 August 1991 list
(100038) 1991 RD13 13 September 1991 list
(100039) 1991 RO16 15 September 1991 list
(100040) 1991 RQ17 11 September 1991 list
(100042) 1991 SJ2 16 September 1991 list
(118174) 1991 RO24 12 September 1991 list
(120457) 1990 QZ2 28 August 1990 list
(129460) 1992 PW2 6 August 1992 list
(147957) 1993 TM21 10 October 1993 list
(160510) 1990 RG1 14 September 1990 list
(160511) 1990 SD11 16 September 1990 list
(160514) 1991 PQ9 7 August 1991 list
(168319) 1990 RW2 15 September 1990 list
(200085) 1991 RR19 14 September 1991 list
(204966) 1990 QX3 22 August 1990 list
(233972) 1992 PZ5 3 August 1992 list
(343827) 2011 HA24 11 September 1991 list
Co-discovery made with:
A N. G. Thomas
B D. H. Levy
C J. A. Brown
D C. S. Shoemaker

See also edit

References edit

  1. ^ a b "Minor Planet Discoverers (by number)". Minor Planet Center. 11 July 2018. Retrieved 18 July 2018.
  2. ^ "Henry E Holt". Find a Grave. Retrieved 1 July 2022.
  3. ^ a b c d Schmadel, Lutz D. (2007). "(4435) Holt". Dictionary of Minor Planet Names – (4435) Holt. Springer Berlin Heidelberg. p. 381. doi:10.1007/978-3-540-29925-7_4384. ISBN 978-3-540-00238-3.
  4. ^ "6312 Robheinlein (1990 RH4)". Minor Planet Center. Retrieved 25 January 2016.
  5. ^ Bowell, E.; Holt, H. E.; Olmstead, C. M.; Holt, H. R.; Brown, J. A.; Bus, S. J. (1990-09-01). "Comet Holt-Olmstead (1990k)". International Astronomical Union Circular (5093): 1. Bibcode:1990IAUC.5093....1B. ISSN 0081-0304.
  6. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 13 April 2018.
  7. ^ Discovery originally attributed to Henry E. Holt and Norman G. Thomas "(4582) Hank". (4582) Hank In: Dictionary of Minor Planet Names. Springer. 2003. p. 394. doi:10.1007/978-3-540-29925-7_4513. ISBN 978-3-540-29925-7.

External links edit