19572+4022 BU 1474AB

Coord 2000	19572+4022		Discov num	BU 1474		Comp	AB		Coord arcsec 2000	19 57 13.87 +40 22 04.2
Date first	1893		Date last	2014		Obs	17
Pa first	318		Pa last	315		P.A. Now (θ)	315°
Sep first	65.3		Sep last	63.5		Sep. Now (ρ)	63.5"
Mag pri	5.44		Mag sec	9.31		delta mag (ΔM)	3.87		Spectral class	B5V (blue-white)
Pri motion ra	+007		Sec motion ra	-001
Pri motion dec	+000		Sec motion dec	-011
Notes	N (See Notes)

rPM=1.231 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		49011	19572+4022	BU 1474	AB	1893	2014	17	315	63.5	5.44	9.31	3.87		<===
Show			19572+4022	BU 1474	AC	1905	2002	3	343	20.5	5.44	13.00	7.56

Triple system
3 visible stars in this system

Precise pa	314.6		Precise sep	63.5		Cdsa2 id	BU 1474 AB		Constellation	Cygnus
SAO	49011		HD	189178		HR	7628		Ra deg	19.953852777777776
De deg	40.36783333333334		last precise pa	314.6		last precise sep	63.5

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19572+4022	BU 1474	AB	2002	13	316	65.2	5.44	9.31	B5V	N D	195713.87+402204.2
19572+4022	BU 1474	AB	2012	15	316	64.7	5.44	9.31	B5V	N D	195713.87+402204.2
19572+4022	BU 1474	AB	2013	16	316	64.0	5.44	9.31	B5V	N	195713.87+402204.2
19572+4022	BU 1474	AB	2014	17	315	63.5	5.44	9.31	B5V	N	195713.87+402204.2

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