Ernest Leonard Johnson

Minor planets discovered: 18 [1]
see § List of discovered minor planets

Ernest Leonard Johnson (died c. 1977; also cited as "Earnest L. Johnson") was a South African astronomer and a former staff member of the Union Observatory in Johannesburg, South Africa. He is known for the discovery of 18 asteroids during 1946–1951, as well as several comets.[1] On 25 August 1949, he discovered 48P/Johnson, a periodic comet of the Jupiter-family.[2] Johnson received twice the "Donohoe Comet Medal"[3]:40 before retiring in 1956. He died in 1977.

List of discoveries

Comets

Discoveries of comets include:

  • C/1935 A1 on 8 January 1935 (Comet a 1935)[4]
  • C/1948 R1 on 1 September 1948 (Comet 1948 j)[5]
  • 48P/Johnson on 25 August 1949[2]
  • C/1949 K1 on 20 May 1949 (Comet 1949 a and/or 1949 d)[3]

Asteroids

Johnson is credited by the Minor Planet Center with the discovery of 18 asteroids:.[1]

1568 Aisleen21 August 1946list
1580 Betulia22 May 1950list
1585 Union7 September 1947list
1607 Mavis3 September 1950list
1609 Brenda10 July 1951list
1618 Dawn5 July 1948list
1623 Vivian9 August 1948list
1731 Smuts9 August 1948list
1760 Sandra10 April 1950list
1819 Laputa9 August 1948list
1885 Herero9 August 1948list
1922 Zulu25 April 1949list
2546 Libitina23 March 1950list
2651 Karen28 August 1949list
2718 Handley30 July 1951list
2829 Bobhope9 August 1948list
3184 Raab22 August 1949list
5038 Overbeek31 May 1948list

See also

References

  1. 1 2 3 "Minor Planet Discoverers (by number)". Minor Planet Center. 2 April 2018. Retrieved 2 May 2018.
  2. 1 2 "JPL Small-Body Database Browser: 48P/Johnson". Jet Propulsion Laboratory. Retrieved 2 May 2018.
  3. 1 2 C. D. Shane (February 1952). "Report of the Donohoe Comet Medal Committee". Publications of the Astronomical Society of the Pacific. 64 (376): 39. Bibcode:1952PASP...64...39.. doi:10.1086/126418. Retrieved 2 May 2018.
  4. ↑ R. G Aitken (February 1936). "Report of the Comet Medal Committee with Awards of the Comet Medal". Publications of the Astronomical Society of the Pacific. 48 (281): 52. Bibcode:1936PASP...48...52.. doi:10.1086/124657. Retrieved 2 May 2018.
  5. ↑ C. D. Shane (February 1949). "Report for the Comet Metal Committee". Publications of the Astronomical Society of the Pacific. 61 (358): 51. Bibcode:1949PASP...61...51.. doi:10.1086/126123. Retrieved 2 May 2018.


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