105P/Singer Brewster
| Discovery | |
|---|---|
| Discovered by | Stephen Singer-Brewster |
| Discovery date | May 3, 1986 |
| 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 | September 11, 2005[1][2] April 6, 1999 |
| Next perihelion | February 26, 2012[1][2] |
105P/Singer Brewster is a periodic comet in our solar system. Its name is unusual: co-discovered comets bear the names of the co-discoverers linked by hyphens (e.g. Shoemaker-Levy 9, Swift-Tuttle, etc.). But the single discoverer in this case bears a hyphenated name (Stephen Singer-Brewster), so the comet's name replaces the hyphen by a space. It was discovered in 1986, and received the name of 1986d under the old naming system.[3]
Since 105P/Singer Brewster only comes within 2 AU of the Sun,[4] during the 2012 perihelion passage it is only expected to brighten to about apparent magnitude 17.[5]
The comet nucleus is estimated to be 2.2 kilometers in diameter.[4]
The orbit was altered significantly in August 1976 when it passed within .376 AU of Jupiter and will be altered again in August 2059.[6][7]
References
- ^ a b Seiichi Yoshida (2011-02-19). "105P/Singer Brewster". Seiichi Yoshida's Comet Catalog. Retrieved 2011-05-03.
- ^ a b Syuichi Nakano (2009-04-21). "105P/Singer Brewster (NK 1762)". OAA Computing and Minor Planet Sections. Retrieved 2011-05-03.
- ^ Excerpts from the IAU circulars, May 3, 1986, in Stardust June 1986, issue 10, volume XLII, published by National Capital Astronomers
- ^ a b "JPL Small-Body Database Browser: 105P/Singer Brewster". 2011-02-05 last obs. Retrieved 2011-05-03.
{{cite web}}: Check date values in:|date=(help) - ^ "Magnitude plot for 105P/Singer Brewster in 2012". Comet for Windows. Retrieved 2011-05-03.
- ^ "C&MS: 105P/Singer Brewster". Retrieved 2012-01-13.
- ^ "JPL Close-Approach Data: 105P/Singer Brewster". 2011-02-05 last obs. Retrieved 2012-02-17.
{{cite web}}: Check date values in:|date=(help)
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 105P/Singer Brewster
 | This comet-related article is a stub. You can help Wikipedia by expanding it. |