19550+0441 BAL2954AB

Coord 2000	19550+0441		Discov num	BAL2954		Comp	AB		Coord arcsec 2000	19 54 58.03 +04 40 55.4
Date first	1910		Date last	2014		Obs	6
Pa first	214		Pa last	208		P.A. Now (θ)	208°
Sep first	15.5		Sep last	13.2		Sep. Now (ρ)	13.2"
Mag pri	11.57		Mag sec	12.10		delta mag (ΔM)	0.53		Spectral class
Pri motion ra	-007		Sec motion ra	+010
Pri motion dec	-006		Sec motion dec	+003
Notes

rPM=1.842 This double is not physical.

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	2015	4	4	2.3	11.50	11.50	0.00

Triple system
3 visible stars in this system

Precise pa	208.4		Precise sep	13.2		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	AB	1910	1	214	15.5	11.57	12.40			195458.03+044055.2
19550+0441	BAL2954	AB	1999	2	209	13.9	11.57	11.50			195458.03+044055.4
19550+0441	BAL2954	AB	2000	3	209	13.5	11.57	11.50		D	195458.03+044055.4
19550+0441	BAL2954	AB	2013	4	208	13.5	11.57	12.10			195458.03+044055.4
19550+0441	BAL2954	AB	2014	5	206	14.3	11.57	12.10			195458.03+044055.4

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