19556+5226 STF2605AB (Psi Cyg)

Coord 2000	19556+5226		Discov num	STF2605		Comp	AB		Coord arcsec 2000	19 55 37.82 +52 26 20.5
Date first	1822		Date last	2017		Obs	131
Pa first	187		Pa last	175		P.A. Now (θ)	175°
Sep first	3.6		Sep last	2.9		Sep. Now (ρ)	2.9"
Mag pri	5.03		Mag sec	7.52		delta mag (ΔM)	2.49		Spectral class	A4Vn (white)
Pri motion ra	-034		Sec motion ra
Pri motion dec	-022		Sec motion dec
Notes	N (See Notes)

Visually invisible, K-band or other infrared star Nature of this double is uncertain.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		32114	19556+5226	YR 2	Aa,Ab	1996	2010	16	235	0.1	5.60	6.10	0.50	Y
Show	Psi Cyg	32114	19556+5226	STF2605	AB	1822	2017	131	175	2.9	5.03	7.52	2.49		<===
Show		32114	19556+5226	STF2605	AC	1908	2003	5	53	23.9	5.03	13.80	8.77
Show		32114	19556+5226	STF2605	AD	1880	2003	8	60	169.8	5.03	11.31	6.28

Quintuple system
4 visible stars in this system

Precise pa	175.1		Precise sep	2.86		Name	Psi Cyg		Constellation	Cygnus
SAO	32114		HIP	98055		Tycho2	3570-02426-1		Gaia DR2	84718210432
HD	189037		HR	7619		GC	27618		BD	BD+52 2572
Bayer	Psi Cygni		Bayer name	Psi Cyg		Flamsteed	24 Cygni		Flamsteed name	24 Cyg
Distance	86.28		Distance ly	281.45

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19556+5226	STF2605	AB	2006	111	174	3.0	5.03	7.52	A4Vn	N D	195537.82+522620.5
19556+5226	STF2605	AB	2008	112	178	3.0	5.03	7.52	A4Vn	N D	195537.82+522620.5
19556+5226	STF2605	AB	2010	122	176	2.9	5.03	7.52	A4Vn	N D	195537.82+522620.5
19556+5226	STF2605	AB	2013	128	177	2.7	5.03	7.52	A4Vn	N D	195537.82+522620.5
19556+5226	STF2605	AB	2014	129	177	2.8	5.03	7.52	A4Vn	N D	195537.82+522620.5
19556+5226	STF2605	AB	2017	131	175	2.9	5.03	7.52	A4Vn	N	195537.82+522620.5

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