GK Persei

GK Persei ( Nova Persei also 1901) was a Nova, which lit up in 1901 in the constellation Perseus and with a maximum brightness of 0.2 like one of the brightest, latter was observed novae. As a supernova remnant, like a calm brightness of 13.5, GK Persei is a cataclysmic variables (CV), which combines a number of features in it, which rarely occur in this combination: The orbital period of GK Persei is one with 1.99 days to the longest observed in CVs, and the companion star is a subgiant, and not, as a rule, a main sequence star. The accreting white dwarf is magnetic and rotates with a period of 351 seconds, which GK Persei is attributable to the asynchronous magnetic CVs of type DQ Herculis. In addition, in GK Persei Zwergnovausbrüche be observed in which the brightness of the system increases by 2-3 mag. The outbreaks occur at intervals of about 3 years and last about 2 months.

GK Persei is surrounded by an expanding shell, which dates from the last Nova outbreak and is called Fireworks fog.

Coordinates ( equinox 2000)

  • Right Ascension: 03h31m12.0s
  • Declination: 43 ° 54'17 "
Perseus (constellation) Dwarf star Intermediate polar Dwarf nova Digital Object Identifier
267492
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