20124+3545 BKO 104 AC

20^h 12^m 21.90^s +35° 45' 05.1" P.A. 285.00 sep 9.3 mag 11.90,13.80

Coord 2000	20124+3545		Discov num	BKO 104		Comp	AC		Coord arcsec 2000	20 12 21.90 +35 45 05.1
Date first	1998		Date last	2015		Obs	8
Pa first	285		Pa last	285.4		P.A. Now (θ)	285.4°
Sep first	9.2		Sep last	9.29		Sep. Now (ρ)	9.29"
Mag pri	11.90		Mag sec	13.80		delta mag (ΔM)	1.9		Spectral class
Pri motion ra	+051		Sec motion ra	-002
Pri motion dec	-029		Sec motion dec	+000
Notes	R (Red magnitudes)

rPM=1.03

This double is not physical.

20124+3545 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 12 22 +35 45 05	BKO 104 AB	2015	8	72	9.4	11.90	11.80	0.10
Show			20 12 22 +35 45 05	BKO 104 AC	2015	8	285	9.3	11.90	13.80	1.90		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Gaia DR2

2058954824352116608