20338+4120 CAN 66 AC

Coord 2000	20338+4120		Discov num	CAN  66		Comp	AC		Coord arcsec 2000	20 33 47.84 +41 20 41.5
Date first	2008		Date last	2008		Obs	1
Pa first	190		Pa last	190.3		P.A. Now (θ)	190.3°
Sep first	1.7		Sep last	1.73		Sep. Now (ρ)	1.73"
Mag pri	7.20		Mag sec	15.00		delta mag (ΔM)	7.8		Spectral class	B1III (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 33 48 +41 20 42	CAN 66 AB	2008	2	42	0.3	7.20	12.40	5.20
Show			20 33 48 +41 20 42	CAN 66 AC	2008	1	190	1.7	7.20	15.00	7.80		<===
Show			20 33 48 +41 20 42	CAN 66 AD	2008	2	200	5.8	7.20	14.00	6.80
Show			20 33 48 +41 20 42	CAN 66 AE	2008	2	49	14.6	7.20	14.90	7.70

Quintuple system
5 estimated visually detectable stars in this system

Constellation

Cygnus