20334+4109 WSI  67AB

Coord 2000	20334+4109		Discov num	WSI  67		Comp	AB		Coord arcsec 2000	20 33 23.46 +41 09 12.9
Date first	2005		Date last	2008		Obs	7
Pa first	325		Pa last	324		P.A. Now (θ)	324°
Sep first	0.7		Sep last	0.7		Sep. Now (ρ)	0.7"
Mag pri	12.50		Mag sec	12.90		delta mag (ΔM)	0.4		Spectral class	O5.5V (blue)
Pri motion ra	+001		Sec motion ra
Pri motion dec	-001		Sec motion dec
Notes	V (Proper motion indicates physical)

Visually invisible, K-band or other infrared star This double is physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20334+4109	WSI 67	AB	2005	2008	7	324	0.7	12.50	12.90	0.40		<===
Show			20334+4109	CAN 56	AC	2005	2005	3	308	4.4	6.10	9.20	3.10
Show			20334+4109	CAN 56	AD	1998	2014	7	269	11.7	6.10	11.30	5.20

Quadruple system
4 visible stars in this system

Precise pa

323.9

Precise sep

0.713

Constellation

Cygnus

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20334+4109	WSI 67	AB	2008	7	324	0.7	12.50	12.90	O5.5V	V	203323.46+410912.9

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