48P/Johnson

48P/Johnson
Comet Johnson (top) by Spitzer Space Telescope
Discovery
Discovered byErnest Leonard Johnson
Discovery dateAugust 25, 1949
Designations
1949 II; 1956 V; 1963 IV;
1970 IV; 1977 I; 1983 XVIII;
1990 XXIII
Orbital characteristics
EpochMarch 6, 2006
Aphelion4.983 AU
Perihelion2.309 AU
Semi-major axis3.646 AU
Eccentricity0.3667
Orbital period6.963 a
Inclination13.6589°
Last perihelion2018-Aug-12[1]
September 29, 2011[2][3]
October 11, 2004
Next perihelion2025-Mar-02[4]

48P/Johnson is a periodic comet in the Solar System.

The comet nucleus is estimated to be 5.7 kilometers in diameter by Lamy, Fernandez, and Weaver.[5] David C. Jewitt and Scott S. Sheppard estimate the nucleus to have dimensions of 6.0 x 4.4 km.[6]

References

  1. ^ MPC
  2. ^ Seiichi Yoshida (2008-10-12). "48P/Johnson". Seiichi Yoshida's Comet Catalog. Retrieved 2010-03-01.
  3. ^ Syuichi Nakano (2008-05-06). "48P/Johnson (NK 1610)". OAA Computing and Minor Planet Sections. Retrieved 2010-03-01.
  4. ^ "Horizons Batch for 48P/Johnson (90000566) on 2025-Mar-02" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Archived from the original on 2022-06-27. Retrieved 2023-07-06. (JPL#69 Soln.date: 2023-Mar-29)
  5. ^ "JPL Small-Body Database Browser: 48P/Johnson" (2005-11-10 last obs). Jet Propulsion Laboratory. Retrieved 2010-03-01.
  6. ^ David C. Jewitt & Scott S. Sheppard (2004). "The nucleus of comet 48P/Johnson". The Astronomical Journal. 127 (3): 1784–1790. Bibcode:2004AJ....127.1784J. doi:10.1086/382097.


Numbered comets
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