20338+4133 CIA 35 Aa,Ab

Coord 2000	20338+4133		Discov num	CIA  35		Comp	Aa,Ab		Coord arcsec 2000	20 33 46.10 +41 33 01.1
Date first	2018		Date last	2018		Obs	1
Pa first	339		Pa last	338.5		P.A. Now (θ)	338.5°
Sep first	0.0		Sep last	0.007		Sep. Now (ρ)	0.007"
Mag pri	5.90		Mag sec	8.40		delta mag (ΔM)	2.5		Spectral class	O9I (blue)
Pri motion ra	-003		Sec motion ra
Pri motion dec	-003		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 46 +41 33 01	CIA 35 Aa,Ab	2018	1	339	0.0	5.90	8.40	2.50		<===
Show			20 33 46 +41 33 01	CAN 9 AB	2008	3	246	0.2	10.00	12.00	2.00
Show			20 33 46 +41 33 01	CAN 65 AC	2008	1	179	0.7	5.60	10.80	5.20
Show			20 33 46 +41 33 01	CAN 65 AD	2008	2	351	4.2	5.60	11.60	6.00

Quintuple system
4 estimated visually detectable stars in this system

Constellation

Cygnus

Tycho2

3161-01084-1