19550+0441 BAL2954AC

Coord 2000	19550+0441		Discov num	BAL2954		Comp	AC		Coord arcsec 2000	19 54 58.03 +04 40 55.4
Date first	1910		Date last	2015		Obs	5
Pa first	212		Pa last	210		P.A. Now (θ)	210°
Sep first	17.0		Sep last	12.3		Sep. Now (ρ)	12.3"
Mag pri	11.57		Mag sec	11.50		delta mag (ΔM)	0.07		Spectral class
Pri motion ra	-007		Sec motion ra
Pri motion dec	-006		Sec motion dec
Notes

Nature of this double is uncertain.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			19550+0441	BAL2954	AB	1910	2014	6	208	13.2	11.57	12.10	0.53
Show			19550+0441	BAL2954	AC	1910	2015	5	210	12.3	11.57	11.50	0.07		<===
Show			19550+0441	BAL2954	BC	1910	2014	3	0	1.9	11.50	11.50	0.00

Triple system
3 visible stars in this system

Precise pa	210.3		Precise sep	12.311		Constellation	Aquila		Tycho2	0489-00967-1
Gaia DR2	75710392960

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19550+0441	BAL2954	AC	1910	1	212	17.0	11.57	12.50			195458.03+044055.2
19550+0441	BAL2954	AC	1990	3	210	13.8	11.57	11.50			195458.03+044055.4
19550+0441	BAL2954	AC	2000	2	209	13.5	11.57	11.50			195458.03+044055.4
19550+0441	BAL2954	AC	2014	4	210	12.4	11.57	11.50			195458.03+044055.4
19550+0441	BAL2954	AC	2015	5	210	12.3	11.57	11.50			195458.03+044055.4

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