20314+4131 CAN 31 AB

Coord 2000	20314+4131		Discov num	CAN  31		Comp	AB		Coord arcsec 2000	20 31 22.04 +41 31 28.4
Date first	2008		Date last	2008		Obs	2
Pa first	116		Pa last	115.5		P.A. Now (θ)	115.5°
Sep first	3.9		Sep last	3.9		Sep. Now (ρ)	3.9"
Mag pri	7.60		Mag sec	13.40		delta mag (ΔM)	5.8		Spectral class	B1I (blue-white)
Pri motion ra			Sec motion ra
Pri motion dec			Sec motion dec
Notes	V K (Proper motion indicates physical, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 31 22 +41 31 28	CAN 31 AB	2008	2	116	3.9	7.60	13.40	5.80		<===
Show			20 31 22 +41 31 28	CAN 31 AC	2008	2	30	6.0	7.60	14.50	6.90

Triple system
3 estimated visually detectable stars in this system

Constellation

Cygnus