20326+4041 CAN 18 AF

Coord 2000	20326+4041		Discov num	CAN  18		Comp	AF		Coord arcsec 2000	20 32 38.44 +40 40 44.5
Date first	1998		Date last	2014		Obs	5
Pa first	131		Pa last	131.5		P.A. Now (θ)	131.5°
Sep first	9.4		Sep last	9.351		Sep. Now (ρ)	9.351"
Mag pri	7.40		Mag sec	12.80		delta mag (ΔM)	5.4		Spectral class	O8III (blue)
Pri motion ra			Sec motion ra
Pri motion dec			Sec motion dec
Notes	K (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 Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 32 38 +40 40 44	CAN 18 AB	2008	1	63	7.5	7.40	15.90	8.50
Show			20 32 38 +40 40 44	CAN 18 AC	2008	1	130	8.1	7.40	16.20	8.80
Show			20 32 38 +40 40 44	CAN 18 AD	2008	1	117	8.8	7.40	15.60	8.20
Show			20 32 38 +40 40 44	CAN 18 AE	2008	1	179	9.1	7.40	15.00	7.60
Show			20 32 38 +40 40 44	CAN 18 AF	2014	5	132	9.4	7.40	12.80	5.40		<===
Show			20 32 38 +40 40 44	CAN 18 AG	2008	1	305	10.8	7.40	15.80	8.40

Septuple system
7 estimated visually detectable stars in this system

Constellation

Cygnus