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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.[4]

105P/Singer Brewster
Discovery
Discovered byStephen Singer-Brewster
Discovery dateMay 3, 1986
Alternative
designations		1986 XI; 1992 XXVI
Orbital characteristics A
Epoch2011-Feb-08
(JD 2455600.5)
Aphelion4.8915 AU
Perihelion2.0502 AU
Semi-major axis3.4709 AU
Eccentricity0.40929
Orbital period6.47 yr
Inclination9.1706°
Last perihelion2018-Aug-10[1]
February 26, 2012[2][3]
September 11, 2005
April 6, 1999
Next perihelion2025-Jan-22[1]

Because 105P/Singer Brewster only comes within 2 AU of the Sun,[5] during the 2012 perihelion passage it is only expected to brighten to about apparent magnitude 17.[6]

The comet nucleus is estimated to be 2.2 kilometers in diameter.[5]

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.[7][8]

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.[9][10]


References


  1. MPC
  2. 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.
  3. Syuichi Nakano (April 21, 2009). "105P/Singer Brewster (NK 1762)". OAA Computing and Minor Planet Sections. Retrieved May 3, 2011.
  4. Excerpts from the IAU circulars, May 3, 1986, in Stardust June 1986, issue 10, volume XLII, published by National Capital Astronomers
  5. "JPL Small-Body Database Browser: 105P/Singer Brewster". February 5, 2011. Retrieved May 3, 2011.
  6. "Magnitude plot for 105P/Singer Brewster in 2012". Comet for Windows. Retrieved May 3, 2011.
  7. "C&MS: 105P/Singer Brewster". Retrieved January 13, 2012.
  8. "JPL Close-Approach Data: 105P/Singer Brewster". February 5, 2011. Retrieved February 17, 2012.
  9. IAU Comet-naming Guidelines, International Astronomical Union, archived from the original on March 4, 2016
  10. 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."


Numbered comets
Previous
104P/Kowal		 105P/Singer Brewster Next
106P/Schuster

На других языках

- [en] 105P/Singer Brewster

[ru] 105P/Сингер Брюстера

Комета Сингер Брюстера (105P/Singer Brewster) — короткопериодическая комета из семейства Юпитера, которая была обнаружена 3 марта 1986 года американским астрономом Stephen Singer-Brewster в Паломарской обсерватории с помощью 0,46-метрового телескопа системы Шмидта[4]. Она была описана как диффузный объект 15,0 m звёздной величины с небольшой конденсацией в центре. Комета обладает довольно длинным периодом обращения вокруг Солнца — чуть менее 6,47 года.


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