19576+4402 KOI 18 AD

Coord 2000	19576+4402		Discov num	KOI  18		Comp	AD		Coord arcsec 2000	19 57 37.68 +44 02 06.1
Date first	2009		Date last	2010		Obs	2
Pa first	211		Pa last	211		P.A. Now (θ)	211°
Sep first	5.1		Sep last	4.94		Sep. Now (ρ)	4.94"
Mag pri	13.37		Mag sec	20.30		delta mag (ΔM)	6.93		Spectral class
Pri motion ra	-004		Sec motion ra
Pri motion dec	-002		Sec motion dec
Notes	N R (See Notes, Red magnitudes)

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			19 57 38 +44 02 06	KOI 18 AB	2010	2	167	0.9	13.37	18.70	5.33
Show			19 57 38 +44 02 06	KOI 18 AC	2015	5	111	3.5	13.37	19.80	6.43
Show			19 57 38 +44 02 06	KOI 18 AD	2010	2	211	4.9	13.37	20.30	6.93		<===
Show			19 57 38 +44 02 06	KOI 18 AE	2009	1	106	5.9	12.10	19.80	7.70
Show			19 57 38 +44 02 06	KOI 18 AF	2009	1	219	7.1	12.10	20.30	8.20
Show			19 57 38 +44 02 06	KOI 18 AG	2017	5	146	7.3	13.40	18.30	4.90
Show			19 57 38 +44 02 06	KOI 18 AH	2009	1	78	7.3	12.10	19.40	7.30
Show			19 57 38 +44 02 06	KOI 18 AI	2011	2	345	9.7	12.10	18.40	6.30
Show			19 57 38 +44 02 06	KOI 18 AJ	2009	1	339	9.7	12.10	20.10	8.00
Show			19 57 38 +44 02 06	KOI 18 AK	2009	1	222	10.8	12.10	19.80	7.70

11-fold system
11 estimated visually detectable stars in this system

Constellation

Cygnus

Gaia DR2

2079018300195390464

discov_num	notes	refcode
KOI 18	AD: Adams et al. (2012) theta values corrected to 360-theta	Adm2012
	(reported by Dressing et al. (2014).	Dre2014

refcode	metd	author	reference
Adm2012	A -	Adams, E.R., Ciardi, D.R., Dupree, A.K., Gautier, T.N., III, Kulesa, C., &	2012AJ....144...42A
Adm2012	+E2	McCarthy, D.
Adm2012		AJ 144, 42, 2012 (sep/mag limits replaced: see Adm2013b for errata)	2013AJ....146...71A
Dre2014	A j	Dressing, C.D., Adams, E.R., Dupree, A.K., Kulesa, C., & McCarthy, D.	2014AJ....148...78D
Dre2014		AJ 148, 78, 2014 (additional info from Furlan et al. 2017)	2017AJ....153...71F

idgroup	discov	author
1	KOI	"Kepler Object of Interest" (transiting exoplanet candidate of Kepler mission.
19	KOI	Hirsch, L.A., Ciardi, D.R., Howard, A.W., Everett, M.E., Furlan, E., Saylors, M.,
19	KOI	Horch, E.P., Howell, S.B., Teske, J., & Marcy, G.W.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19576+4402	KOI 18	AD	2010	1	211	4.9	13.37	20.30		R	195737.68+440206.1

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

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