23228+2034 TOK 704 Ba,Bb

Coord 2000	23228+2034		Discov num	TOK 704		Comp	Ba,Bb		Coord arcsec 2000	23 22 49.08 +20 33 32.1
Date first	2015		Date last	2021		Obs	6
Pa first	181		Pa last	186.8		P.A. Now (θ)	186.8°
Sep first	0.7		Sep last	0.762		Sep. Now (ρ)	0.762"
Mag pri	6.40		Mag sec	8.40		delta mag (ΔM)	2		Spectral class	dK6
Pri motion ra	+315		Sec motion ra
Pri motion dec	-011		Sec motion dec
Notes	N O R (See Notes, Orbital solution, Red magnitudes)

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 220334	91222	23 22 49 +20 33 32	STF 3007 AB	2022	284	92	5.9	6.74	9.78	3.04	Y
Show		91222	23 22 49 +20 33 32	STF 3007 AC	2017	23	305	103.8	6.74	10.86	4.12
Show			23 22 49 +20 33 32	TOK 704 Ba,Bb	2021	6	187	0.8	6.40	8.40	2.00	Y	<===

Quadruple system
3 estimated visually detectable stars in this system

Constellation

Pegasus

Gaia DR2

2825753374536867584

ADS

16713

Period (P)	117y		Periastron (T)	1935.1y	± 5.5	Semi-major axis (a)	0.215a	± 0.011
Eccentricity (e)	0.204	± 0.04	Inclination (i)	65.1°	± 2.5	Longitude of periastron (ω)	294°	± 15
Node (Ω)	188.5°	± 2.8	Notes			Reference	Tok2016d
Equinox			Last observation	2015		Grade	9	(1=Definitive, 9=Indet.)

label theta rho 2000 339.6 0.178 2001 341.4 0.183 2002 343.1 0.188 2003 344.7 0.193 2004 346.3 0.197 2005 347.8 0.201 2006 349.2 0.205 2007 350.5 0.209 2008 351.9 0.213 2009 353.1 0.216 2010 354.4 0.219 2011 355.6 0.222 2012 356.8 0.224 2013 357.9 0.226 2014 359.1 0.227 2015 0.2 0.229 2016 1.3 0.229 2017 2.4 0.230 2018 3.5 0.230 2019 4.6 0.229 2020 5.8 0.229 2021 6.9 0.227 2022 8.0 0.226 2023 9.2 0.223 2024 10.4 0.221 2025 11.6 0.217 2026 12.9 0.214 2027 14.2 0.209 2028 15.5 0.205 2029 17.0 0.200 2030 18.5 0.194		Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic