21555+5232 STT 456 CD

Coord 2000	21555+5232		Discov num	STT 456		Comp	CD		Coord arcsec 2000	21 55 28.78 +52 31 50.1
Date first	1881		Date last	2015		Obs	27
Pa first	136		Pa last	147.9		P.A. Now (θ)	147.9°
Sep first	46.5		Sep last	40.768		Sep. Now (ρ)	40.768"
Mag pri	10.55		Mag sec	10.96		delta mag (ΔM)	0.41		Spectral class
Pri motion ra	+083		Sec motion ra	-001
Pri motion dec	+014		Sec motion dec	-002
Notes	L (Linear solution)

rPM=1.016 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			21 55 32 +52 31 41	STT 456 AB	2019	79	38	1.6	8.25	8.93	0.68
Show			21 55 32 +52 31 41	STT 456 AC	2016	17	291	26.1	8.25	10.55	2.30
Show			21 55 32 +52 31 41	STT 456 AD	2016	16	185	25.2	8.25	10.96	2.71
Show	HD 208546		21 55 32 +52 31 41	ABH 154 AB,E	2003	5	18	54.6	7.79	12.24	4.45
Show			21 55 32 +52 31 41	ABH 154 AB,F	2003	3	104	57.5	7.79	12.42	4.63
Show			21 55 32 +52 31 41	ABH 154 AB,G	2010	11	107	111.6	7.79	9.52	1.73
Show			21 55 32 +52 31 41	ABH 154 AB,H	2003	3	183	59.1	7.79	13.73	5.94
Show			21 55 32 +52 31 41	ABH 154 AB,I	2003	3	256	101.0	7.79	13.53	5.74
Show			21 55 32 +52 31 41	ABH 154 AB,J	2003	3	46	80.4	7.79	13.68	5.89
Show			21 55 32 +52 31 41	ABH 154 AB,K	2000	2	124	72.3	7.79	14.30	6.51
Show			21 55 32 +52 31 41	ABH 154 AB,L	2003	3	118	75.7	7.79	13.90	6.11
Show			21 55 29 +52 31 50	STT 456 CD	2015	27	148	40.8	10.55	10.96	0.41		<===

12-fold system
13 estimated visually detectable stars in this system

Constellation	Cygnus		HIP	108222		Gaia DR2	1981339233365058944		Distance	264.55
Distance ly	862.96