19418+5032 STFA 46AB (16 Cyg)

Coord 2000	19418+5032		Discov num	STFA 46		Comp	AB		Coord arcsec 2000	19 41 49.09 +50 31 31.6
Date first	1800		Date last	2017		Obs	584
Pa first	141		Pa last	134		P.A. Now (θ)	134°
Sep first	37.0		Sep last	39.8		Sep. Now (ρ)	39.8"
Mag pri	6.00		Mag sec	6.23		delta mag (ΔM)	0.23		Spectral class	G1.5V (yellow)
Pri motion ra	-148		Sec motion ra	-135
Pri motion dec	-159		Sec motion dec	-164
Notes	N O V (See Notes, Orbital solution, Proper motion indicates physical)

rPM=0.064 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		31898	19418+5032	TRN 4	Aa,Ab	1998	2009	11	208	3.2	5.99	13.00	7.01	Y
Show	16 Cyg	31898	19418+5032	STFA 46	AB	1800	2017	584	134	39.8	6.00	6.23	0.23		<===
Show			19418+5032	PAT 48	BC	1998	1998	2	76	15.8	4.65	11.91	7.26

Quadruple system
3 visible stars in this system

Precise pa	133.6		Precise sep	39.829		Name	16 Cyg		Other name	c Cyg
Constellation	Cygnus		SAO	31898		HD	186408		HR	7503
Flamsteed	16 Cygni		Flamsteed name	16 Cyg		last precise pa	133.6		last precise sep	39.829

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19418+5032	STFA 46	AB	2006	535	133	40.5	6.00	6.23	G1.5V	NODV	194149.09+503131.6
19418+5032	STFA 46	AB	2008	536	133	39.6	6.00	6.23	G1.5V	NODV	194149.09+503131.6
19418+5032	STFA 46	AB	2009	539	133	39.9	6.00	6.23	G1.5V	NOD	194149.09+503131.6
19418+5032	STFA 46	AB	2010	540	133	39.7	6.00	6.23	G1.5V	NODV	194149.09+503131.6
19418+5032	STFA 46	AB	2011	569	130	42.9	6.00	6.23	G1.5V	NODV	194149.09+503131.6
19418+5032	STFA 46	AB	2012	575	133	39.7	6.00	6.23	G1.5V	NODV	194149.09+503131.6
19418+5032	STFA 46	AB	2014	580	133	39.7	6.00	6.23	G1.5V	NODV	194149.09+503131.6
19418+5032	STFA 46	AB	2015	583	133	39.8	6.00	6.23	G1.5V	NO V	194149.09+503131.6
19418+5032	STFA 46	AB	2016	583	133	40.0	6.00	6.23	G1.5V	NO V	194149.09+503131.6
19418+5032	STFA 46	AB	2017	584	134	39.8	6.00	6.23	G1.5V	NO V	194149.09+503131.6

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