b
Cephei (Alfirk)
component
year
position angle
angular separation
magnitude of 1st component
magnitude of 2nd component
spectral class(es)
Aa
1971
48°
0,3''
3,2
-
B2III
1990
51°
0,1''
Aa-B
1832
251°
13,4''
3,2
7,8
-
1975
249°
-
HR 8238 (Component A)