20333+4117 CAN 79 AI

Coord 2000	20333+4117		Discov num	CAN  79		Comp	AI		Coord arcsec 2000	20 33 17.48 +41 17 09.3
Date first	2008		Date last	2014		Obs	4
Pa first	204		Pa last	204.7		P.A. Now (θ)	204.7°
Sep first	10.5		Sep last	10.145		Sep. Now (ρ)	10.145"
Mag pri	7.60		Mag sec	13.60		delta mag (ΔM)	6		Spectral class	O7V (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 33 17 +41 17 09	CAN 79 AB	2008	1	201	3.7	7.60	16.30	8.70
Show			20 33 17 +41 17 09	CAN 79 AC	2008	1	320	4.2	7.60	14.50	6.90
Show			20 33 17 +41 17 09	CAN 79 AD	2008	1	52	5.7	7.60	16.20	8.60
Show			20 33 17 +41 17 09	CAN 79 AE	2008	1	46	6.0	7.60	16.00	8.40
Show			20 33 17 +41 17 09	CAN 79 AF	2008	1	2	6.5	7.60	15.90	8.30
Show			20 33 17 +41 17 09	CAN 79 AG	2008	2	151	8.8	7.60	13.80	6.20
Show			20 33 17 +41 17 09	CAN 79 AH	2008	1	52	9.3	7.60	14.40	6.80
Show			20 33 17 +41 17 09	CAN 79 AI	2014	4	205	10.1	7.60	13.60	6.00		<===
Show			20 33 17 +41 17 09	CAN 79 AJ	2015	5	242	11.4	7.60	11.90	4.30
Show			20 33 17 +41 17 09	CAN 79 AK	2014	2	231	15.0	7.60	13.60	6.00

11-fold system
11 estimated visually detectable stars in this system

Constellation

Cygnus