19425+1726 STF2563AC

Coord 2000	19425+1726		Discov num	STF2563		Comp	AC		Coord arcsec 2000	19 42 28.87 +17 25 38.9
Date first	1897		Date last	2015		Obs	20
Pa first	322		Pa last	321		P.A. Now (θ)	321°
Sep first	83.6		Sep last	83.4		Sep. Now (ρ)	83.4"
Mag pri	8.66		Mag sec	9.37		delta mag (ΔM)	0.71		Spectral class	G0 (yellow)
Pri motion ra	+023		Sec motion ra	+019
Pri motion dec	+009		Sec motion dec	+006
Notes	N W (See Notes, )

rPM=0.202 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		105169	19 42 29 +17 25 39	STF 2563 AB	2020	38	286	6.0	8.66	9.52	0.86
Show		105169	19 42 29 +17 25 39	STF 2563 AC	2015	20	321	83.4	8.66	9.37	0.71		<===
Show		105166	19 42 25 +17 26 44	STF 2563 CD	2015	10	118	7.4	9.37	11.50	2.13

Quadruple system
4 visible stars in this system

Precise pa	321.2		Precise sep	83.364		Constellation	Sagitta		SAO	105169
Tycho2	1606-01991-1		Gaia DR2	1823998397932653952		HD	186224

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19425+1726	STF2563	AC	2004	13	321	83.0	8.66	9.37		N D	194228.87+172538.9
19425+1726	STF2563	AC	2013	15	321	83.1	8.66	9.37	G0	N	194228.87+172538.9
19425+1726	STF2563	AC	2015	16	321	83.4	8.66	9.37	G0	N W	194228.87+172538.9

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