19453-6823 TOK 425 Ba,Bb

Coord 2000	19453-6823		Discov num	TOK 425		Comp	Ba,Bb		Coord arcsec 2000	19 45 15.54 -68 23 22.3
Date first	2014		Date last	2020		Obs	14
Pa first	312		Pa last	103.3		P.A. Now (θ)	130.4°
Sep first	0.1		Sep last	0.053		Sep. Now (ρ)	0.085"
Mag pri	13.20		Mag sec	15.00		delta mag (ΔM)	1.8		Spectral class
Pri motion ra			Sec motion ra
Pri motion dec			Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			19 45 16 -68 23 22	HDS 2806 AB	2021	20	115	0.4	10.34	12.97	2.63	Y
Show			19 45 16 -68 23 22	TOK 425 Ba,Bb	2020	14	103	0.1	13.20	15.00	1.80	Y	<===

Triple system
2 estimated visually detectable stars in this system

Spectr	K3		Constellation	Pavo		HIP	97196		Tycho2	9306-01188-1
Gaia DR2	6426760779929152896		HD	185655		CP	CP-68 3294		Distance	46.86
Distance ly	152.86

Period (P)	4.4y	± 0.09	Periastron (T)	2017.22y	± 0.06	Semi-major axis (a)	0.0544a	± 0.0052
Eccentricity (e)	0.85		Inclination (i)	127.4°	± 7.6	Longitude of periastron (ω)	218.9°	± 10.3
Node (Ω)	148.2°	± 6.4	Notes	n		Reference	Tok2021b
Equinox			Last observation			Grade	3	(1=Definitive, 9=Indet.)

label theta rho 2000 147.8 0.045 2001 130.4 0.085 2002 120.2 0.085 2003 106.0 0.060 2004 326.4 0.009 2005 135.2 0.075 2006 124.3 0.088 2007 113.0 0.073 2008 82.3 0.031 2009 142.0 0.059 2010 128.3 0.087 2011 118.0 0.082 2012 101.1 0.052 2013 160.2 0.026 2014 132.7 0.081 2015 122.3 0.087 2016 109.8 0.067 2017 56.3 0.019 2018 138.2 0.068 2019 126.3 0.088 2020 115.6 0.078 2021 94.0 0.042 2022 147.8 0.045 2023 130.4 0.085 2024 120.2 0.085 2025 106.0 0.060 2026 326.4 0.009 2027 135.2 0.075 2028 124.3 0.088 2029 113.0 0.073 2030 82.3 0.031		Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic