e Bootis (Izar)

component year position angle angular separation magnitude of 1st component magnitude of 2nd component spectral class(es) AB 1822 321° 2.6'' 2.7 5.1 K0II-III 1988 343° - AC 1912 257° 178.7'' 2.7 12 - 1988 256° 176.4'' HR 5505 (Component A) HR 5506 (Component B)

m Bootis (Alkalurops)

component year position angle angular separation magnitude of 1st component magnitude of 2nd component spectral class(es) Aa 1988 350° 0,1'' 4,31 - F2IVa 1993 280° - Aa-BC 1834 171° 108,4'' 4,31 6,5 F2IVa G0V BC 1826 327° 1,3'' 7,2 7,8 G0V 1994 10° 2,1'' m1 Boo HR 5733 (Component A) m2 Boo HR 5734 (Component BC)