20178+3956 FOX9014AC

Coord 2000	20178+3956		Discov num	FOX9014		Comp	AC		Coord arcsec 2000	20 17 49.63 +39 55 33.9
Date first	1912		Date last	2015		Obs	8
Pa first	60		Pa last	61		P.A. Now (θ)	61°
Sep first	22.0		Sep last	24.4		Sep. Now (ρ)	24.4"
Mag pri	8.80		Mag sec	13.50		delta mag (ΔM)	4.7		Spectral class	A2V (white)
Pri motion ra	-009		Sec motion ra	+002
Pri motion dec	-010		Sec motion dec	-007
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=0.847 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		69777	20178+3956	HJ 2951	AB	1831	2015	32	125	10.8	8.80	9.54	0.74
Show		69777	20178+3956	FOX9014	AC	1912	2015	8	61	24.4	8.80	13.50	4.70		<===

Triple system
3 visible stars in this system

Precise pa	61.4		Precise sep	24.385		Constellation	Cygnus		SAO	69777
Tycho2	3155-01860-1		Gaia DR2	24850585472		HD	193247

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20178+3956	FOX9014	AC	2000	2	62	24.3	8.80	13.50			201749.63+395533.9
20178+3956	FOX9014	AC	2002	4	61	24.4	8.80	13.50		D	201749.63+395533.9
20178+3956	FOX9014	AC	2015	4	61	24.4	8.80	13.50	A2V	N	201749.63+395533.9

If you need more information about this double, apply for a data request form to the WDS.