105P/Singer Brewster

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105P/Singer Brewster
Discovery
Discovered by: Stephen Singer-Brewster
Discovery date: May 3, 1986
Alternate designations: 1986 XI; 1992 XXVI
Orbital characteristics A
Epoch: March 6, 2006
Aphelion distance: 4.887 AU
Perihelion distance: 2.041 AU
Semi-major axis: 3.464 AU
Eccentricity: 0.4108
Orbital period: 6.448 a
Inclination: 9.1795°
Last perihelion: September 11, 2005
Next perihelion: 2012

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, Helin-Roman-Alu 1, 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.

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