19568+4416 STU  12AC

Coord 2000	19568+4416		Discov num	STU  12		Comp	AC		Coord arcsec 2000	19 56 50.15 +44 16 16.0
Date first	1892		Date last	2015		Obs	11
Pa first	135		Pa last	133		P.A. Now (θ)	133°
Sep first	34.5		Sep last	33.2		Sep. Now (ρ)	33.2"
Mag pri	7.91		Mag sec	12.73		delta mag (ΔM)	4.82		Spectral class	A0p (white)
Pri motion ra	+004		Sec motion ra	+002
Pri motion dec	+002		Sec motion dec	+007
Notes

rPM=0.74 Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		49005	19 56 50 +44 16 16	STT 391 AB	2015	20	51	17.9	7.91	10.55	2.64
Show		49005	19 56 50 +44 16 16	STU 12 AC	2015	11	133	33.2	7.91	12.73	4.82		<===

Triple system
3 visible stars in this system

Precise pa	133.3		Precise sep	33.212		Constellation	Cygnus		SAO	49005
HIP	98156		Tycho2	3149-01558-1		Gaia DR2	2079024622387491712		HD	189160
BD	BD+43 3422		Distance	357.14		Distance ly	1164.99

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19568+4416	STU 12	AC	2000	5	133	33.4	7.92		A0p	D	195650.15+441616.0
19568+4416	STU 12	AC	2003	6	133	33.1	7.90	12.70	A0p	D	195650.15+441616.0
19568+4416	STU 12	AC	2013	7	134	33.0	7.91	12.73	A0p		195650.15+441616.0
19568+4416	STU 12	AC	2015	11	133	33.2	7.91	12.73	A0p		195650.15+441616.0

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