b Cygni (Albiero)

component year position angle angular separation magnitude of 1st component magnitude of 2nd component spectral class(es) Aa 1976 190° 0,4'' 3,08 - K3II+B0V 1992 150° - Aa-B 1822 54° 34,5'' 3,08 5,11 - b1 Cyg HR 4717 (Component A) b2 Cyg HR 4718 (Component B)

o¹ Cygni

component year position angle angular separation magnitude of 1st component magnitude of 2nd component spectral class(es) Aa 1949 140° 0,1'' 3,78 - K2II+B3V 1985 111° 0'' Aa-B 1878 331° 36,6'' 3,78 13,3 - Aa-C 1836 173° 107'' 3,78 6,99 - Aa-D 1835 323° 337,5'' 3,78 5 - Aa-F 1878 170° 43,2'' 3,78 - - CG 1878 92° 40,1'' - - - CH 1878 62° 60,5'' - - - CI 1878 136° 60,5'' - - - DC 1901 150° 433,6'' 4,83 6,9 A5IIIn DE 1900 252° 32,9'' 4,83 13,2 - 1912 251° 34,3'' HR 7735 (Component Aa) HR 7730 (Component D)

61 Cygni

component year position angle angular separation magnitude of 1st component magnitude of 2nd component spectral class(es) AB 1822 86° 14,9'' 5,23 6,05 K5V K7V 1993 149° 30,4'' AC 1907 196° 306,1'' 5,6 - - 1914 195° 321,4'' AD 1918 282° 304,9'' 5,7 8,6 - AE 1918 12° 306'' 5,7 8,1 - Aa 1918 31° 157,1'' 5,6 10,5 - 1921 30° 140,6'' BC 1902 198° 277,7'' 6,3 - K7V 1924 208° 375,8'' 61 Cyg HR 8085 (Component A) 61 Cyg HR 8086 (Component B)