20289+5655 TOB 187AD

Coord 2000	20289+5655		Discov num	TOB 187		Comp	AD		Coord arcsec 2000	20 28 52.84 +56 55 23.0
Date first	1983		Date last	2015		Obs	9
Pa first	189		Pa last	189		P.A. Now (θ)	189°
Sep first	28.8		Sep last	31.2		Sep. Now (ρ)	31.2"
Mag pri	9.73		Mag sec	11.80		delta mag (ΔM)	2.07		Spectral class	K0 (yellow-orange)
Pri motion ra	+022		Sec motion ra	-002
Pri motion dec	+039		Sec motion dec	+004
Notes

rPM=0.948 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		32618	20 28 53 +56 55 23	STI 2535 AB	2016	15	227	13.6	9.73	10.57	0.84
Show		32618	20 28 53 +56 55 23	TOB 187 AC	2015	12	132	26.9	9.73	11.34	1.61
Show		32618	20 28 53 +56 55 23	TOB 187 AD	2015	9	189	31.2	9.73	11.80	2.07		<===

Quadruple system
4 visible stars in this system

Precise pa	188.7		Precise sep	31.217		Constellation	Cygnus		SAO	32618
Tycho2	3958-00952-1		Gaia DR2	2187035044058553728		HD	239426

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20289+5655	TOB 187	AD	1999	2	188	30.6	9.73	11.80	K0	D	202852.84+565523.0
20289+5655	TOB 187	AD	2003	3	188	30.7	9.73	11.80	K0	D	202852.84+565523.0
20289+5655	TOB 187	AD	2013	4	188	31.3	9.73	11.80	K0		202852.84+565523.0
20289+5655	TOB 187	AD	2015	5	189	31.2	9.73	11.80	K0	W	202852.84+565523.0

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