19553+0624 STT 532AB (Alshain)

Coord 2000	19553+0624		Discov num	STT 532		Comp	AB		Coord arcsec 2000	19 55 18.79 +06 24 24.3
Date first	1838		Date last	2015		Obs	31
Pa first	24		Pa last	0		P.A. Now (θ)	0°
Sep first	11.8		Sep last	13.4		Sep. Now (ρ)	13.4"
Mag pri	3.81		Mag sec	11.40		delta mag (ΔM)	7.59		Spectral class	G8IV+M3 (yellow/red)
Pri motion ra	+048		Sec motion ra
Pri motion dec	-482		Sec motion dec
Notes	N (See 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	Alshain	125235	19553+0624	STT 532	AB	1838	2015	31	0	13.4	3.81	11.40	7.59		<===
Show		125235	19553+0624	STT 532	AC	1834	2008	12	349	214.8	3.81	11.24	7.43

Triple system
3 visible stars in this system

Precise pa	359.7		Precise sep	13.414		Common name	Alshain		Meaning	Falcon
Other names	Alschairn		Constellation	Aquila		SAO	125235		HIP	98036
Tycho2	0493-03355-1		HD	188512		HR	7602		GC	27587
GL	Gl 771A		BD	BD+06 4357		Bayer	Beta Aquilae		Bayer name	Bet Aql
Flamsteed	60 Aquilae		Flamsteed name	60 Aql		Distance	13.7		Distance ly	44.69

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19553+0624	STT 532	AB	2007	29	1	13.1	3.81	11.90	G8IV	N D	195518.79+062424.3
19553+0624	STT 532	AB	2012	30	359	13.6	3.81	11.90	G8IV M3	N D	195518.79+062424.3
19553+0624	STT 532	AB	2015	31	0	13.4	3.81	11.90	G8IV+M3	N	195518.79+062424.3

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