19579+3843 SEI 751AB

Coord 2000	19579+3843		Discov num	SEI 751		Comp	AB		Coord arcsec 2000	19 57 49.54 +38 43 37.8
Date first	1896		Date last	2017		Obs	9
Pa first	259		Pa last	259		P.A. Now (θ)	259°
Sep first	20.0		Sep last	20.4		Sep. Now (ρ)	20.4"
Mag pri	11.70		Mag sec	12.04		delta mag (ΔM)	0.34		Spectral class
Pri motion ra	-009		Sec motion ra	-008
Pri motion dec	-014		Sec motion dec	-013
Notes

rPM=0.085 (< 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			19579+3843	SEI 751	AB	1896	2017	9	259	20.4	11.70	12.04	0.34		<===
Show			19579+3843	TOB 163	AC	1929	2017	6	72	23.5	11.70	11.90	0.20
Show			19579+3843	MLB 949	CD	1934	2017	3	105	3.1	12.20	13.80	1.60

Quadruple system
4 visible stars in this system

Precise pa	258.6		Precise sep	20.374		Cdsa2 id	SEI 751 AB		Constellation	Cygnus
Ra deg	19.96376111111111		De deg	38.72716666666667		last precise pa	258.6		last precise sep	20.374

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19579+3843	SEI 751	AB	1998	6	258	20.4	11.70	12.04		D	195749.54+384337.8
19579+3843	SEI 751	AB	2002	7	258	20.4	11.70	12.04		D	195749.54+384337.8
19579+3843	SEI 751	AB	2015	8	258	20.4	11.70	12.04			195749.54+384337.8
19579+3843	SEI 751	AB	2017	9	259	20.4	11.70	12.04			195749.54+384337.8

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