20192+3647 TOB 184BC

Coord 2000	20192+3647		Discov num	TOB 184		Comp	BC		Coord arcsec 2000	20 19 09.60 +36 46 12.5
Date first	1896		Date last	2015		Obs	12
Pa first	170		Pa last	170		P.A. Now (θ)	170°
Sep first	23.1		Sep last	23.9		Sep. Now (ρ)	23.9"
Mag pri	11.00		Mag sec	12.20		delta mag (ΔM)	1.2		Spectral class
Pri motion ra	+004		Sec motion ra	+002
Pri motion dec	+009		Sec motion dec	+003
Notes

rPM=0.642 Nature of this double is uncertain.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		69822	20192+3647	SEI1081	AB	1896	2015	12	231	18.0	10.20	11.00	0.80
Show		69822	20192+3647	TOB 184	BC	1896	2015	12	170	23.9	11.00	12.20	1.20		<===

Triple system
3 visible stars in this system

Precise pa	170.4		Precise sep	23.861		Constellation	Cygnus		SAO	69822
Gaia DR2	30970090240

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20192+3647	TOB 184	BC	2000	5	170	23.8	11.10	12.30		D	201909.60+364612.5
20192+3647	TOB 184	BC	2008	6	171	23.9	11.10	12.30		D	201909.60+364612.5
20192+3647	TOB 184	BC	2015	8	170	23.8	11.00	12.20			201909.60+364612.5

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