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19428+3741
STU 11 AF

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

19428+3741 STU 11 AF

19^h 42^m 48.56^s +37° 41' 12.5" P.A. 191.00 sep 46.2 mag 7.71,12.32 Sp K2 dist. 709.22 pc (2313.48 l.y.)

Coord 2000	19428+3741		Discov num	STU 11		Comp	AF		Coord arcsec 2000	19 42 48.56 +37 41 12.5
Date first	1896		Date last	2015		Obs	7
Pa first	193		Pa last	190.9		P.A. Now (θ)	190.9°
Sep first	45.9		Sep last	46.183		Sep. Now (ρ)	46.183"
Mag pri	7.71		Mag sec	12.32		delta mag (ΔM)	4.61		Spectral class	K2 (yellow-orange)
Pri motion ra	-011		Sec motion ra	-001
Pri motion dec	+007		Sec motion dec	-001
Notes	N (See Notes)

rPM=0.982

This double is not physical.

19428+3741 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 186429	68737	19 42 49 +37 41 12	STTA 188 AB	2017	32	121	61.1	7.71	7.98	0.27
Show		68737	19 42 49 +37 41 12	STU 11 AC	2013	14	228	146.0	7.71	8.14	0.43
Show		68737	19 42 49 +37 41 12	STU 11 AE	2015	10	196	101.4	7.71	11.39	3.68
Show		68737	19 42 49 +37 41 12	STU 11 AF	2015	7	191	46.2	7.71	12.32	4.61		<===
Show		68737	19 42 49 +37 41 12	STTA 188 AG	2015	3	120	29.8	7.71	13.50	5.79
Show		68739	19 42 53 +37 40 42	STU 11 BD	2015	19	173	60.4	7.98	9.64	1.66
Show		68739	19 42 53 +37 40 42	STTA 188 BG	2015	7	302	30.8	7.98	13.50	5.52

Septuple system
7 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Cygnus		SAO	68737		HIP	96986		Tycho2	3136-00664-1
Gaia DR2	2049034102716764800		HD	186429		BD	BD+37 3577		Distance	709.22
Distance ly	2313.48