20255+4006 D    22AC

Coord 2000	20255+4006		Discov num	D    22		Comp	AC		Coord arcsec 2000	20 25 31.16 +40 05 50.8
Date first	1905		Date last	1998		Obs	5
Pa first	92		Pa last	114		P.A. Now (θ)	114°
Sep first	17.8		Sep last	18.1		Sep. Now (ρ)	18.1"
Mag pri	8.15		Mag sec	13.20		delta mag (ΔM)	5.05		Spectral class	F8V (yellow-white)
Pri motion ra	+092		Sec motion ra
Pri motion dec	+019		Sec motion dec
Notes

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		70001	20 25 31 +40 05 51	D 22 AB	2016	72	163	2.9	8.15	9.48	1.33
Show		70001	20 25 31 +40 05 51	D 22 AC	1998	5	114	18.1	8.15	13.20	5.05		<===
Show		70001	20 25 31 +40 05 51	POP 224 AD	2009	6	98	71.2	8.15	11.58	3.43

Quadruple system
4 visible stars in this system

Precise pa	114.1		Precise sep	18.11		Constellation	Cygnus		SAO	70001
Tycho2	3156-00437-1		Gaia DR2	2067478101017759616		HD	194685

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20255+4006	D 22	AC	1998	5	114	18.1	8.15	13.20	F8V	D	202531.14+400553.7

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