20289+5655 STI2535AB

Coord 2000	20289+5655		Discov num	STI2535		Comp	AB		Coord arcsec 2000	20 28 52.84 +56 55 23.0
Date first	1899		Date last	2016		Obs	15
Pa first	229		Pa last	227		P.A. Now (θ)	227°
Sep first	13.4		Sep last	13.6		Sep. Now (ρ)	13.6"
Mag pri	9.73		Mag sec	10.57		delta mag (ΔM)	0.84		Spectral class	K0 (yellow-orange)
Pri motion ra	+023		Sec motion ra	+022
Pri motion dec	+038		Sec motion dec	+037
Notes	T (Parallax indicates physical)

rPM=0.032 (< 0.3, Physical double) This double is 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	227		Precise sep	13.612		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	STI2535	AB	2002	5	227	13.7	9.73	10.57	K0	D	202852.84+565523.0
20289+5655	STI2535	AB	2003	6	227	13.6	9.73	10.57	K0	D	202852.84+565523.0
20289+5655	STI2535	AB	2012	7	227	13.8	9.73	10.57	K0	D	202852.84+565523.0
20289+5655	STI2535	AB	2013	8	226	13.7	9.73	10.57	K0		202852.84+565523.0
20289+5655	STI2535	AB	2015	9	227	13.6	9.73	10.57	K0	W	202852.84+565523.0

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