Beta Cephei

Starbox begin
name=Beta CepheiStarbox image


caption = Beta Cephei Starbox observe
epoch=J2000
ra=21h 28m 39.5971s
dec=+70° 33' 38.578"'
appmag_v=3.216
constell=Cepheus Starbox character
class=B2IIIV
b-v=?
u-b=?
variable=Variable Star of beta Cep type Starbox astrometry
radial_v=-8.2
prop_mo_ra=12.60
prop_mo_dec=8.73
parallax=5.48
p_error=0.47
absmag_v=3.015
dist_ly=600 ± 50
dist_pc=180 ± 20Starbox detail
mass=12
radius=?
luminosity=14.600
temperature=?
metal=?
rotation=?
age=? Starbox catalog
names= FK5 809, SBC7 859, * 8 Cep, GC 30118, ADS 15032 A, GCRV 13520, MCW 989, TD1 28199, AG+70° 738, N30 4748, TYC 4465-2643-1, BD+69 1173, GSC 04465-02643, ALFIRK, HD 205021, PLX 5192, CSI+69° 1173 1, HGAM 1007, 2E 2128.0+7020, HIC 106032, PPM 10863, AAVSO 2127+70, 2E 4480, HIP 106032, ROT 3532, EUVE J2128+70.5, HR 8238, SAO 10057. Starbox reference
Simbad=Beta+Cephei

Beta Cephei (β Cep / β Cephei) is a star in the constellation Cepheus. It also has the traditional name Alfirk (Arabic الفرقة "al-firqah"), meaning "The Flock" (referring to a flock of sheep).

Beta Cephei is the prototype of the Beta Cephei variable stars. Its magnitude varies between +3.15 and +3.21 with a period of 0.1904844 days. It belongs to the spectral class B2IIIev and is 595 light years from Earth.

References

* http://jumk.de/astronomie/prototype-stars/beta-cephei.shtml
*

External links

* [http://www.alcyone.de/SIT/bsc/ Yale Bright Star Catalog; click on Cepheus]