Alfirk

Alfirk (β Cephei) is a blue-white subgiant star in the constellation Cepheus. With an apparent magnitude of 3.23 it is the 218th-brightest star in the night sky.

Finder chart showing where Alfirk is in the constellation Cepheus
Alfirk (circled) in Cepheus, with the surrounding constellations and bright stars.
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Facts

ConstellationCepheus
Designationβ Cephei (Beta Cephei), HR 8238
Apparent magnitude3.23 (218th brightest)
Spectral typeB1IV
Colorblue-white (B−V -0.22)
Distance—
Right ascension21 h 28.7 min
Declination+70.56°
Best monthSeptember (at about 9 pm)

Sources: star positions, magnitudes and colors from the Yale Bright Star Catalogue; constellation boundaries and star names from the IAU; areas and distances from Wikidata; stick figures by M. van der Sluys. How the maps are made.

How to find Alfirk

Alfirk is in Cepheus. From 40° N it never sets; it is highest in the north, about 59° up. From 35° S it stays below the horizon. Nearby bright stars: Alderamin (8° away), Polaris (19° away) and Caph (20° away).

Cepheus constellation →

Other named stars in Cepheus

AlderaminErraiKurhah

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