20136+4644 WRH  33Aa,Ab

Coord 2000	20136+4644		Discov num	WRH  33		Comp	Aa,Ab		Coord arcsec 2000	20 13 37.90 +46 44 28.8
Date first	1949		Date last	1985		Obs	6
Pa first	140		Pa last	111		P.A. Now (θ)	134.6°
Sep first	0.1		Sep last	0.0		Sep. Now (ρ)	0.04"
Mag pri	3.93		Mag sec			delta mag (ΔM)			Spectral class	K4Ib+B3V (yellow-orange/blue-white)
Pri motion ra	+004		Sec motion ra
Pri motion dec	+003		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		49337	20 13 38 +46 44 29	WRH 33 Aa,Ab	1985	6	135	0.0	3.93			Y	<===
Show	31 Cyg	49337	20 13 38 +46 44 29	HJ 1495 AB	2015	12	328	36.5	3.93	13.40	9.47
Show		49337	20 13 38 +46 44 29	STFA 50 AC	2016	46	173	108.6	3.93	6.97	3.04
Show		49337	20 13 38 +46 44 29	STFA 50 AD	2016	38	322	336.7	3.93	4.83	0.90
Show		49337	20 13 38 +46 44 29	BU 1483 AF	2015	4	168	43.5	3.93	13.90	9.97
Show		49338	20 13 39 +46 42 43	BU 1483 CG	2003	3	95	37.9	6.97	14.20	7.23
Show		49338	20 13 39 +46 42 43	BU 1483 CH	2014	4	62	60.6	6.97	12.60	5.63
Show		49338	20 13 39 +46 42 43	BU 1483 CI	2015	7	136	60.2	6.97	12.26	5.29
Show		49332	20 13 18 +46 48 56	GUI 30 DC	2003	27	150	431.8	4.83	6.97	2.14
Show		49332	20 13 18 +46 48 56	ES 26 DE	2003	4	252	36.3	4.83	13.20	8.37
Show		49337	20 13 39 +46 43 46	SMR 68 FJ	2015	3	217	4.2	13.90	15.10	1.20
Show		49338	20 13 44 +46 43 11	SMR 68 HK	2015	8	262	8.9	11.74	10.87	0.87

12-fold system
11 visible stars in this system

Precise pa	111.4		Precise sep	0.027		Var name	V695 Cyg		Constellation	Cygnus
SAO	49337		HIP	99675		Tycho2	3559-02797-1		Gaia DR2	2082600852678091904
HD	192577		HR	7735		GC	28099		ADS	13554
BD	BD+46 2882		Flamsteed	31 Cygni		Flamsteed name	31 Cyg		Distance	271
Distance ly	884		last precise pa	111.4		last precise sep	0.027

Period (P)	10.04y		Periastron (T)	1963.012y		Semi-major axis (a)	0.043a
Eccentricity (e)	0.118		Inclination (i)	104.7°		Longitude of periastron (ω)	129.8°
Node (Ω)	144.9°		Note			Grade	3	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	1985

label rho theta 2000 0.045 143.8 2001 0.034 133.5 2002 0.013 95.6 2003 0.022 347.1 2004 0.038 328.2 2005 0.037 317.1 2006 0.022 297.4 2007 0.013 214.8 2008 0.029 165.3 2009 0.043 152.3 2010 0.046 144.1 2011 0.035 134.1 2012 0.014 99.4 2013 0.021 348.5 2014 0.038 328.7 2015 0.037 317.6 2016 0.023 298.8 2017 0.012 219.1 2018 0.028 166.1 2019 0.042 152.6 2020 0.046 144.4 2021 0.035 134.6 2022 0.014 102.8 2023 0.020 350.2 2024 0.037 329.2 2025 0.038 318.1 2026 0.023 300.0 2027 0.012 223.6 2028 0.027 167.0 2029 0.042 153.0 2030 0.046 144.7		Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20136+4644	WRH 33	Aa,Ab	1985	5	111	0.0	3.93		K2II+B3V	NO	201337.90+464428.8

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