20184+5524 STF2671AC

Coord 2000	20184+5524		Discov num	STF2671		Comp	AC		Coord arcsec 2000	20 18 24.76 +55 23 49.8
Date first	1911		Date last	2003		Obs	4
Pa first	55		Pa last	53		P.A. Now (θ)	53°
Sep first	83.9		Sep last	87.2		Sep. Now (ρ)	87.2"
Mag pri	6.01		Mag sec	12.40		delta mag (ΔM)	6.39		Spectral class	A2Vs (white)
Pri motion ra	-008		Sec motion ra	-005
Pri motion dec	-031		Sec motion dec	-001
Notes	N (See Notes)

rPM=0.942 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		32455	20 18 25 +55 23 50	STF 2671 AB	2017	119	337	3.7	6.01	7.51	1.50
Show		32455	20 18 25 +55 23 50	STF 2671 AC	2003	4	53	87.2	6.01	12.40	6.39		<===
Show		32455	20 18 25 +55 23 50	WOR 52 AE	2003	3	54	30.3	6.01	13.70	7.69
Show		32455	20 18 33 +55 24 41	STF 2671 CD	2015	7	138	5.3	12.40	13.30	0.90

Quintuple system
5 visible stars in this system

Precise pa	53.2		Precise sep	87.163		Constellation	Cygnus		SAO	32455
HIP	100097		Tycho2	3941-01957-3		Gaia DR2	2186085478327859840		HD	193592
HR	7781		BD	BD+54 2329		Distance	90.5		Distance ly	295.21

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20184+5524	STF2671	AC	1960	2	53	86.4	6.01	12.80	A2Vs	N D	201824.76+552349.8
20184+5524	STF2671	AC	1999	3	53	86.9	6.01	12.40	A2Vs	N D	201824.76+552349.8
20184+5524	STF2671	AC	2003	4	53	87.2	6.01	12.40	A2Vs	N D	201824.76+552349.8

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