19457+3605 STF2578AF

Coord 2000	19457+3605		Discov num	STF2578		Comp	AF		Coord arcsec 2000	19 45 39.65 +36 05 27.6
Date first	1823		Date last	2013		Obs	23
Pa first	252		Pa last	251		P.A. Now (θ)	251°
Sep first	139.8		Sep last	144.5		Sep. Now (ρ)	144.5"
Mag pri	6.37		Mag sec	9.22		delta mag (ΔM)	2.85		Spectral class	B9.5V (blue-white)
Pri motion ra	+002		Sec motion ra	-006
Pri motion dec	+007		Sec motion dec	-005
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=1.847 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		68805	19457+3605	STF2578	AB	1823	2019	90	125	14.9	6.37	7.04	0.67
Show		68805	19457+3605	STF2578	AC	1894	2006	9	356	44.3	6.37	12.49	6.12
Show		68805	19457+3605	STF2578	AD	1900	2006	7	70	95.0	6.37	12.39	6.02
Show		68805	19457+3605	STF2578	AF	1823	2013	23	251	144.5	6.37	9.22	2.85		<===
Show		68806	19457+3605	STF2578	BE	1908	2015	4	75	11.4	7.04	14.00	6.96

Sextuple system
6 visible stars in this system

Precise pa	251.3		Precise sep	144.5		Constellation	Cygnus		SAO	68805
HIP	97228		Tycho2	2668-00996-1		Gaia DR2	02517982592		HD	186901
HR	7529		BD	BD+35 3786		Distance	300.3		Distance ly	979.58

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19457+3605	STF2578	AF	2007	20	251	143.8	6.37	9.22	B9.5V	N D	194539.65+360527.6
19457+3605	STF2578	AF	2013	23	251	144.5	6.37	9.22	B9.5V	N	194539.65+360527.6

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