CzSkY

WDS ID	19450+4508
Common catalogue ID	STF 2579
Components	AB
Other Designation	18 del Cyg (Rukh)
Position angle	217
Separation	2.7
Mag First	2.89
Mag Second	6.27
Delta mag	3.38
Spectral Type	B9.5IV
Constellation	Cygnus
RA	19:44:58.4
Dec	+45:07:50.5