Stephen Singer-Brewster

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Stephen C. Singer-Brewster (a.k.a. Stephen C. Brewster) is an American astronomer.[1]

Mr. Brewster is a member of the American Association of Variable Star Observers. He participated in the Palomar Planet Crossing Asteroid Survey (PCAS) as an observer and astrometrist under the direction of Dr. Eleanor F. Helin (JPL/Caltech) from 1985 to 1988. During this period Mr. Brewster was credited with six new asteroid discoveries and one periodic comet discovery – comet 105P/Singer Brewster.[2]

He also discovered six asteroids:

Asteroids discovered: 6
4555 Josefapérez August 24, 1987
(5253) 1985 XB December 15, 1985
(15700) 1987 QD August 24, 1987
(24655) 1987 QH August 25, 1987
(26817) 1987 QB August 25, 1987
(26818) 1987 QM August 25, 1987

Singer-Brewster has been an active member of Stony Ridge Observatory, Inc. since 1983 and has served on its Board of Directors. He formed the Faint Object Follow Up (FOFU) project at Stony Ridge in 2000 to encourage observations of faint asteroids and comets.

Dr. Helin honored him with the naming of an asteroid, (10315) Brewster, to acknowledge his work for PCAS, Stony Ridge Observatory, and the Jet Propulsion Laboratory (JPL). Singer-Brewster is currently a retired member of the staff at JPL. At JPL, he worked on a number of spacecraft missions such as the Pluto Fast Flyby, the Outer Planets/Solar Probe Mission and the Europa Orbiter mission. At the time of his retirement in 2003 he was working in the Mars Advanced Studies Program and the Europa Orbiter/X2000 avionics development project at JPL.


  1. ^ Schmadel, Lutz D.; Union, International Astronomical (2003). Dictionary of minor planet names. Springer. pp. 352–. ISBN 978-3-540-00238-3. Retrieved 16 June 2011. 
  2. ^ "JPL Small-Body Database Browser: 105P/Singer Brewster". 2011-02-05 last obs. Retrieved 2011-05-03.  Check date values in: |date= (help)