 Comet Johnson (top) by Spitzer Space Telescope | |
| Discovery | |
|---|---|
| Discovered by | Ernest Leonard Johnson |
| Discovery date | August 25, 1949 |
| Designations | |
| 1949 II; 1956 V; 1963 IV; 1970 IV; 1977 I; 1983 XVIII; 1990 XXIII | |
| Orbital characteristics | |
| Epoch | March 6, 2006 |
| Aphelion | 4.983 AU |
| Perihelion | 2.309 AU |
| Semi-major axis | 3.646 AU |
| Eccentricity | 0.3667 |
| Orbital period | 6.963 a |
| Inclination | 13.6589° |
| Last perihelion | 2018-Aug-12[1] September 29, 2011[2][3] October 11, 2004 |
| Next perihelion | 2025-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]
- ^ MPC
- ^ Seiichi Yoshida (2008-10-12). "48P/Johnson". Seiichi Yoshida's Comet Catalog. Retrieved 2010-03-01.
- ^ Syuichi Nakano (2008-05-06). "48P/Johnson (NK 1610)". OAA Computing and Minor Planet Sections. Retrieved 2010-03-01.
- ^ Cite error: The named reference
Horizons2025was invoked but never defined (see the help page). - ^ "JPL Small-Body Database Browser: 48P/Johnson" (2005-11-10 last obs). Jet Propulsion Laboratory. Retrieved 2010-03-01.
- ^ 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.