Alfirk (Beta Cephei)
X-ray image of Alfirk (Chandra)
The second brightest star in the constellation Cepheus and the prototype Beta Cephei star.
Beta Cephei is called Alfirk ("The Herd"). This is a visual binary as well as a variable (see below).
Gamma Cephei is Er Rai (Shepherd). Long before Aldemarin becomes the Pole Star, this one will assume that title (around 4000 AD).
see Beta Cephei Star. [H76]
VY Canis Majoris
A peculiar cM3e irregular variable with an extremely strong infrared excess, presumably due to a circumstellar dust shell.
[2323] beta Cephei or Alfirk ("the herd" or "the flock") is the second brightest star in the constellation. It is a pulsating variable, a triple star that appears as a visual binary comprised of a blue giant and a faint companion star.
ALFIRK (Beta Cephei). In mythology, Cepheus (the King) pales beside Cassiopeia (the Queen), who is central to the story of Andromeda. And so does his constellation, which is among the fainter of those of the Perseus myth.
7 magnitude or so every 1 to 2 hours.
Bluewhite variables with early spectra (O and B)
Bluewhite stars, often giants, with small brightness variations and short periods.
= Beta Cephei variables
= ...
The primary star is also a beta Cephei variable star.[1] [2] The pre-main sequence star has an orbital period of 6 days and the B companion has a period of 1053 days.
It lies in the east central part (23:39:20.8+77:37:56.2, ICRS 2000.0) of Constellation Cepheus, the King and father of Andromeda -- southeast of Polaris (Alpha Ursae Minorus), northeast of Pi Cephei, Alfirk (Beta Cephei), Alderamin (Alpha Cephei), ...
Bluewhite stars, often giants, with small brightness variations and short periods. Beta Cephei variables ...
 See also: Light, Star, Distance, Sun, Dwarf
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