19523+1021 STF2590AB (V1466 Aql)

Coord 2000	19523+1021		Discov num	STF2590		Comp	AB		Coord arcsec 2000	19 52 15.58 +10 21 05.8
Date first	1781		Date last	2017		Obs	36
Pa first	307		Pa last	308		P.A. Now (θ)	308°
Sep first	12.0		Sep last	13.6		Sep. Now (ρ)	13.6"
Mag pri	6.50		Mag sec	10.31		delta mag (ΔM)	3.81		Spectral class	B7V (blue-white)
Pri motion ra	-002		Sec motion ra	-002
Pri motion dec	-012		Sec motion dec	-012
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	V1466 Aql	105355	19523+1021	STF2590	AB	1781	2017	36	308	13.6	6.50	10.31	3.81		<===
Show		105355	19523+1021	STF2590	AC	2000	2015	5	310	115.0	6.50	12.47	5.97
Show		105355	19523+1021	GMC 1	AE	2000	2015	5	343	15.1	6.50	13.50	7.00
Show		105355	19523+1021	STF2590	CD	1909	2015	13	273	8.4	11.60	12.20	0.60

Quintuple system
5 visible stars in this system

Precise pa	308.4		Precise sep	13.575		Var name	V1466 Aql		Constellation	Aquila
SAO	105355		HIP	97787		Tycho2	1062-02702-1		Gaia DR2	58419825664
HD	187961		HR	7572		BD	BD+09 4295		Distance	325.73
Distance ly	1062.53

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19523+1021	STF2590	AB	2007	25	309	13.5	6.50	10.31	B7V	N D	195215.58+102105.8
19523+1021	STF2590	AB	2011	27	310	13.6	6.50	10.31	B7V	N D	195215.58+102105.8
19523+1021	STF2590	AB	2012	30	310	13.6	6.50	10.31	B7V	N D	195215.58+102105.8
19523+1021	STF2590	AB	2015	31	310	13.7	6.50	10.31	B7V	N	195215.58+102105.8
19523+1021	STF2590	AB	2017	36	308	13.6	6.50	10.31	B7V	N	195215.58+102105.8

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