Pretty doubles in CORONA BOREALIS Other constellations:
Scope
Name
 Magn. Sep.
RA
Dec
 Remarks
Real favourites:
AT80
MK67
Zeta CrB
 5.1 - 6 6" 15:39.4 +36:38 A bright and coloful double: Light-yellow - blue-white.  With low power in same FOV with Struve 1964
MK67
Sigma CrB
 5.2 - 6.6 7" 16:14.7 +33:52 A bright and coloful double: Yellow - blue-white 
GS80
Struve 1964
 7.7 - 7.6 15" 15:39.4 +36:38 Same FOV with Zeta CrB
Better than average:
GS80 CG11
 Nu CrB
 5.3 - 5.4 - 10.2 200" - 100" 16:22.6 +33:42 Primary is yellow, a fourth component of mag. 11 @ 70". A-B is bright and easy bino-target
CG11
Gamma CrB
 3.8 - 5.4 0.7" 15:42.9 +26:17 A challenge that needs good seeing! Difficult because of difference in magnitudes. Secondary shows a yellowish color
CG11
Eta CrB
 5.7 - 5.9 0.6" 15:23.3 +30:17 A challenge that needs good seeing! Separation is decreasing, 0.55" in 2003!