20229+4259 STTA207AC

Coord 2000	20229+4259		Discov num	STTA207		Comp	AC		Coord arcsec 2000	20 22 55.49 +42 59 00.4
Date first	1876		Date last	2017		Obs	30
Pa first	63		Pa last	65		P.A. Now (θ)	65°
Sep first	96.4		Sep last	85.8		Sep. Now (ρ)	85.8"
Mag pri	6.41		Mag sec	8.01		delta mag (ΔM)	1.6		Spectral class	K0III (yellow-orange)
Pri motion ra	+056		Sec motion ra	-003
Pri motion dec	+043		Sec motion dec	-018
Notes	N L (See Notes, Linear solution)

Visually invisible, K-band or other infrared star rPM=1.202 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		49550	20229+4259	HO 128	AB	1886	2015	36	356	1.3	6.41	8.82	2.41	Y
Show		49550	20229+4259	STTA207	AC	1876	2017	30	65	85.8	6.41	8.01	1.60		<===
Show		49555	20229+4259	STTA207	CD	1908	2015	9	162	56.1	8.01	14.43	6.42

Quadruple system
4 visible stars in this system

Precise pa	64.6		Precise sep	85.8		Constellation	Cygnus		SAO	49550
HIP	100515		Tycho2	3160-01936-1		Gaia DR2	33279278720		HD	194220
HR	7802		BD	BD+42 3721		Distance	102.99		Distance ly	335.95

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20229+4259	STTA207	AC	2003	23	64	86.9	6.41	8.01		NLD	202255.49+425900.4
20229+4259	STTA207	AC	2014	26	65	85.4	6.41	8.01	K0III	NL	202255.49+425900.4
20229+4259	STTA207	AC	2015	28	65	85.6	6.41	8.01	K0III	NL	202255.49+425900.4
20229+4259	STTA207	AC	2017	30	65	85.8	6.41	8.01	K0III	NL	202255.49+425900.4

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