Coord 2000	19585+3317	Discov num	STF2606	Comp	AB	Coord arcsec 2000	19 58 32.66 +33 16 38.8
Date first	1832	Date last	2017	Obs	88
Pa first	131	Pa last	146	P.A. Now (θ)	147°
Sep first	1.2	Sep last	0.7	Sep. Now (ρ)	0.66"
Mag pri	7.74	Mag sec	8.43	delta mag (ΔM)	0.69	Spectral class	F5IV (yellow-white)
Pri motion ra	+057	Sec motion ra	+057
Pri motion dec	+051	Sec motion dec	+051
Notes	O (Orbital solution)

This double is physical.

19585+3317 SYSTEM COMPONENTS

Show

name

SAO

coord_2000

discov#

comp

first

last

obs

sep

mag1

mag2

d_mag

orb

current

Show

19585+3317

STF2606

1832

2017

147

0.7

7.74

8.43

0.69

<===

Show

19585+3317

GUI 29

1912

2008

274

167.9

7.75

9.60

1.85

Triple system
3 visible stars in this system

OTHER CATALOGS AND DESIGNATIONS

Precise pa	146.2	Precise sep	0.658	Constellation	Cygnus	HIP	98315
Tycho2	2674-05369-1	HD	189378	ADS	13196	Distance	78.43
Distance ly	255.84	last precise pa	146.2	last precise sep	0.658

ORBITAL ELEMENTS

Period (P)	455y	Periastron (T)	1745.7y	Semi-major axis (a)	1.081a
Eccentricity (e)	0.69	Inclination (i)	82.4°	Longitude of periastron (ω)	240.5°
Node (Ω)	127.4°	Note		Grade	4	(1=Definitive, 9=Indet.)
Equinox	2000	Last observation	2012

label	rho	theta
2000	0.770	143.9
2001	0.764	144.0
2002	0.758	144.2
2003	0.752	144.3
2004	0.745	144.5
2005	0.739	144.7
2006	0.733	144.8
2007	0.727	145.0
2008	0.720	145.2
2009	0.714	145.3
2010	0.708	145.5
2011	0.701	145.7
2012	0.695	145.9
2013	0.688	146.0
2014	0.682	146.2
2015	0.675	146.4
2016	0.669	146.6
2017	0.662	146.8
2018	0.656	147.0
2019	0.649	147.2
2020	0.643	147.4
2021	0.636	147.7
2022	0.630	147.9
2023	0.623	148.1
2024	0.616	148.3
2025	0.610	148.6
2026	0.603	148.8
2027	0.596	149.1
2028	0.590	149.3
2029	0.583	149.6
2030	0.576	149.8

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

Measures: green=micrometric, blue=interferometric, purple=photographic

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19585+3317	STF2606	AB	2007	97	145	0.7	7.74	8.43	F5IV	D	195832.66+331638.8
19585+3317	STF2606	AB	2009	99	145	0.7	7.74	8.43	F5IV	D	195832.66+331638.8
19585+3317	STF2606	AB	2012	86	147	0.7	7.74	8.43	F5IV		195832.66+331638.8
19585+3317	STF2606	AB	2013	87	145	0.8	7.74	8.43	F5IV	O	195832.66+331638.8
19585+3317	STF2606	AB	2017	88	146	0.7	7.74	8.43	F5IV	O	195832.66+331638.8

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