19449+1047 STF2570AB,C

Coord 2000	19449+1047		Discov num	STF2570		Comp	AB,C		Coord arcsec 2000	19 44 56.78 +10 46 30.6
Date first	1825		Date last	2016		Obs	46
Pa first	277		Pa last	277		P.A. Now (θ)	277°
Sep first	4.0		Sep last	4.3		Sep. Now (ρ)	4.3"
Mag pri	7.62		Mag sec	9.81		delta mag (ΔM)	2.19		Spectral class	B3IV-V (blue-white)
Pri motion ra	+001		Sec motion ra	+001
Pri motion dec	-002		Sec motion dec	-002
Notes	N (See Notes)

Visually invisible, K-band or other infrared star 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		105207	19449+1047	AGC 10	AB	1878	2000	40	140	0.2	8.43	8.42	0.01
Show		105207	19449+1047	STF2570	AB,C	1825	2016	46	277	4.3	7.62	9.81	2.19		<===

Triple system
4 visible stars in this system

Precise pa	276.7		Precise sep	4.281		Constellation	Aquila		SAO	105207
HIP	97162		Tycho2	1061-01778-1		Gaia DR2	10903478912		HD	186587
BD	BD+10 4036		Distance	170.94		Distance ly	557.61

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19449+1047	STF2570	AB,C	2001	42	283	4.6	7.62	9.81	B3IV-V	D	194456.78+104630.6
19449+1047	STF2570	AB,C	2012	45	280	4.5	7.62	9.81	B3IV-V	N	194456.78+104630.6
19449+1047	STF2570	AB,C	2015	45	276	4.3	7.62	9.81	B3IV-V	N	194456.78+104630.6
19449+1047	STF2570	AB,C	2016	46	277	4.3	7.62	9.81	B3IV-V	N	194456.78+104630.6

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