19579+4216 STF2607AB,C

Coord 2000	19579+4216		Discov num	STF2607		Comp	AB,C		Coord arcsec 2000	19 57 56.12 +42 15 38.9
Date first	1828		Date last	2012		Obs	63
Pa first	287		Pa last	289		P.A. Now (θ)	289°
Sep first	4.3		Sep last	3.0		Sep. Now (ρ)	3"
Mag pri	6.56		Mag sec	9.09		delta mag (ΔM)	2.53		Spectral class	A3V (white)
Pri motion ra	-003		Sec motion ra
Pri motion dec	-012		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		49031	19 57 56 +42 15 39	STT 392 AB	1996	40	139	0.1	6.60	8.40	1.80	Y
Show		49031	19 57 56 +42 15 39	STF 2607 AB,C	2012	63	289	3.0	6.56	9.09	2.53		<===

Triple system
4 visible stars in this system

Precise pa	289.1		Precise sep	2.978		Constellation	Cygnus		SAO	49031
HIP	98253		Tycho2	3145-01210-1		Gaia DR2	2075470794651771776		HD	189377
HR	7638		BD	BD+41 3549		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
19579+4216	STF2607	AB,C	2007	62	289	3.0	6.56	9.09		N D	195756.12+421538.9
19579+4216	STF2607	AB,C	2012	63	289	3.0	6.56	9.09	A3V	N	195756.12+421538.9

If you need more information about this double, apply for a data request form to the WDS.