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Doubles in session

Current system

19291+3740
KOI 113 AF

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Binocular doubles
Binary Systems
Triple Systems
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

19291+3740 KOI 113 AF

19^h 29^m 05.70^s +37° 40' 17.6" P.A. 179.00 sep 5.8 mag 12.39,19.70

Coord 2000	19291+3740		Discov num	KOI 113		Comp	AF		Coord arcsec 2000	19 29 05.70 +37 40 17.6
Date first	2010		Date last	2014		Obs	4
Pa first	177		Pa last	178.7		P.A. Now (θ)	178.7°
Sep first	5.6		Sep last	5.843		Sep. Now (ρ)	5.843"
Mag pri	12.39		Mag sec	19.70		delta mag (ΔM)	7.31		Spectral class
Pri motion ra	+009		Sec motion ra
Pri motion dec	+003		Sec motion dec
Notes	N R (See Notes, Red magnitudes)

Nature of this double is uncertain.

19291+3740 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			19 29 06 +37 40 18	KOI 113 AB	2014	8	169	0.2	12.70	14.60	1.90
Show			19 29 06 +37 40 18	KOI 113 AC	2014	5	293	3.2	12.39	20.20	7.81
Show			19 29 06 +37 40 18	KOI 113 AD	2014	5	48	3.6	12.39	20.70	8.31
Show			19 29 06 +37 40 18	KOI 113 AE	2015	4	264	5.2	12.39	18.50	6.11
Show			19 29 06 +37 40 18	KOI 113 AF	2014	4	179	5.8	12.39	19.70	7.31		<===
Show			19 29 06 +37 40 18	KOI 113 AG	2014	1	123	1.3	10.70	17.60	6.90
Show			19 29 06 +37 40 18	KOI 113 AH	2015	3	164	6.5	10.70	15.80	5.10

Octuple system
8 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Gaia DR2

2051837651199491968