 | |
| Discovery | |
|---|---|
| Discovered by | Stephen Singer-Brewster |
| Discovery date | May 3, 1986 |
| Designations | |
| Alternative designations | 1986 XI; 1992 XXVI |
| Orbital characteristics | |
| Epoch | 2011-Feb-08 (JD 2455600.5) |
| Aphelion | 4.8915 AU |
| Perihelion | 2.0502 AU |
| Semi-major axis | 3.4709 AU |
| Eccentricity | 0.40929 |
| Orbital period | 6.47 yr |
| Inclination | 9.1706° |
| Last perihelion | 2018-Aug-10 February 26, 2012 September 11, 2005 April 6, 1999 |
| Next perihelion | 2025-Jan-22 |
105P/Singer Brewster is a periodic comet in the Solar System. It was discovered in 1986, and received the name of 1986d under the old naming system.
Because 105P/Singer Brewster only comes within 2 AU of the Sun, during the 2012 perihelion passage it is only expected to brighten to about apparent magnitude 17.
The comet nucleus is estimated to be 2.2 kilometers in diameter.
The orbit of Comet Singer Brewster was altered significantly in August 1976 when it passed within 0.376 AU of Jupiter and will be altered again in August 2059.
The single discoverer bears a hyphenated surname (Singer-Brewster), but co-discovered comets bear the names of the co-discoverers linked by hyphens, e.g. Shoemaker-Levy 9, Swift-Tuttle, etc. In these cases, the IAU either removes one of the parts of the name or replaces the hyphen by a space.
References
- ^ MPC
- Seiichi Yoshida (February 19, 2011). "105P/Singer Brewster". Seiichi Yoshida's Comet Catalog. Archived from the original on April 27, 2011. Retrieved May 3, 2011.
- Syuichi Nakano (April 21, 2009). "105P/Singer Brewster (NK 1762)". OAA Computing and Minor Planet Sections. Retrieved May 3, 2011.
- Excerpts from the IAU circulars, May 3, 1986, in Stardust June 1986, issue 10, volume XLII, published by National Capital Astronomers
- ^ "JPL Small-Body Database Browser: 105P/Singer Brewster". February 5, 2011. Retrieved May 3, 2011.
- "Magnitude plot for 105P/Singer Brewster in 2012". Comet for Windows. Retrieved May 3, 2011.
- "C&MS: 105P/Singer Brewster". Retrieved January 13, 2012.
- "JPL Close-Approach Data: 105P/Singer Brewster". February 5, 2011. Retrieved February 17, 2012.
- IAU Comet-naming Guidelines, International Astronomical Union, archived from the original on March 4, 2016
- Don E. Machholz (1989), "Comet Corner", Journal of the Association of Lunar and Planetary Observers, 33 (1): 25–28, 26, Bibcode:1989JALPO..33...25M,
A hyphen (-) is used in a comet's name only to separate the discoverers. Thus, when sometimes the discover has a double name, the hyphen is dropped from the comet's name in order to show that there was only one discoverer. For example, in 1986 Stephen Singer-Brewster discovered a comet. It is known as "Comet Singer Brewster."
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 105P/Singer Brewster – Seiichi Yoshida @ aerith.net
- Elements and Ephemeris for 105P/Singer Brewster – Minor Planet Center
| Numbered comets | ||
|---|---|---|
| Previous 104P/Kowal |
105P/Singer Brewster | Next 106P/Schuster |
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