105P/Singer Brewster

105P/Singer Brewster
Discovery
Discovered by: Stephen Singer-Brewster
Discovery date: May 3, 1986
Alternate designations: 1986 XI; 1992 XXVI
Orbital characteristics A
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 commonly bear the names of the co-discoverers linked by hyphens rather than dashes (e.g., Shoemaker-Levy 9 for Comet Shoemaker–Levy 9, Swift-Tuttle for 109P/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.

Since 105P/Singer Brewster only comes within 2 AU of the Sun,[3] during the 2012 perihelion passage it is only expected to brighten to about apparent magnitude 17.[4]

The comet nucleus is estimated to be 2.2 kilometers in diameter.[3]

References

  1. ^ a b Seiichi Yoshida (2011-02-19). "105P/Singer Brewster". Seiichi Yoshida's Comet Catalog. http://www.aerith.net/comet/catalog/0105P/index.html. Retrieved 2011-05-03. 
  2. ^ a b Syuichi Nakano (2009-04-21). "105P/Singer Brewster (NK 1762)". OAA Computing and Minor Planet Sections. http://www.oaa.gr.jp/~oaacs/nk/nk1762.htm. Retrieved 2011-05-03. 
  3. ^ a b "JPL Small-Body Database Browser: 105P/Singer Brewster". 2011-02-05 last obs. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=105P. Retrieved 2011-05-03. 
  4. ^ "Magnitude plot for 105P/Singer Brewster in 2012". Comet for Windows. http://www.aerith.net/comet/catalog/0105P/2012-mag.gif. Retrieved 2011-05-03. 

External links

Periodic comets (by number)
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