20365+5557 VBS  30AD

Coord 2000	20365+5557		Discov num	VBS  30		Comp	AD		Coord arcsec 2000	20 36 26.51 +55 56 41.3
Date first	1903		Date last	2018		Obs	9
Pa first	104		Pa last	98		P.A. Now (θ)	98°
Sep first	27.3		Sep last	29.6		Sep. Now (ρ)	29.6"
Mag pri	11.21		Mag sec	11.88		delta mag (ΔM)	0.67		Spectral class
Pri motion ra	-008		Sec motion ra	+017
Pri motion dec	-007		Sec motion dec	+017
Notes

rPM=1.441 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 36 27 +55 56 41	VBS 30 AB	2018	8	142	4.6	11.21	12.20	0.99
Show			20 36 27 +55 56 41	HJ 1556 AC	2018	9	222	6.6	11.21	12.80	1.59
Show			20 36 27 +55 56 41	VBS 30 AD	2018	9	98	29.6	11.21	11.88	0.67		<===

Quadruple system
4 visible stars in this system

Precise pa	97.5		Precise sep	29.56		Constellation	Cygnus		Tycho2	3954-00542-1
Gaia DR2	2187061054378531968

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20365+5557	VBS 30	AD	1999	6	98	29.2	11.21	11.88		D	203626.51+555641.3
20365+5557	VBS 30	AD	2003	7	98	29.2	11.21	11.88		D	203626.51+555641.3
20365+5557	VBS 30	AD	2015	8	97	29.5	11.21	11.88			203626.51+555641.3
20365+5557	VBS 30	AD	2018	9	98	29.6	11.21	11.88			203626.51+555641.3

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