22536+3756 RUC 15 AB (SW Lac)

Coord 2000	22536+3756		Discov num	RUC  15		Comp	AB		Coord arcsec 2000	22 53 41.59 +37 56 18.5
Date first	1998		Date last	2016		Obs	6
Pa first	85		Pa last	78.6		P.A. Now (θ)	78.6°
Sep first	1.7		Sep last	1.651		Sep. Now (ρ)	1.651"
Mag pri	6.81		Mag sec	9.40		delta mag (ΔM)	2.59		Spectral class	G5V+K9V (yellow/yellow-orange)
Pri motion ra	+083		Sec motion ra
Pri motion dec	+010		Sec motion dec
Notes	N O K (See Notes, Orbital solution, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		72820	22 53 42 +37 56 18	GII 300 Aa,Ab	2013	1	181	0.1	8.90	8.90	0.00	Y
Show	SW Lac	72820	22 53 42 +37 56 18	RUC 15 AB	2016	6	79	1.7	6.81	9.40	2.59		<===

Triple system
2 estimated visually detectable stars in this system

Var name	SW Lac		Constellation	Lacerta		SAO	72820		HIP	113052
Tycho2	3215-01746-1		HD	216598		BD	BD+37 4717		Distance	72.52
Distance ly	236.56