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Doubles in session

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20158+5230
WAL 130 AC

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Binocular doubles
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20158+5230 WAL 130 AC

20^h 15^m 49.33^s +52° 30' 08.2" P.A. 2.00 sep 78.9 mag 7.59,11.08 Sp K5III dist. 228.83 pc (746.44 l.y.)

Coord 2000	20158+5230		Discov num	WAL 130		Comp	AC		Coord arcsec 2000	20 15 49.33 +52 30 08.2
Date first	1897		Date last	2015		Obs	9
Pa first	4		Pa last	2.2		P.A. Now (θ)	2.2°
Sep first	78.0		Sep last	78.876		Sep. Now (ρ)	78.876"
Mag pri	7.59		Mag sec	11.08		delta mag (ΔM)	3.49		Spectral class	K5III (yellow-orange)
Pri motion ra	+005		Sec motion ra	-001
Pri motion dec	-005		Sec motion dec	+003
Notes	N (See Notes)

rPM=1.414

This double is not physical.

20158+5230 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 193054	32404	20 15 49 +52 30 08	STT 404 AB	2015	20	115	28.5	7.59	9.80	2.21
Show		32404	20 15 49 +52 30 08	WAL 130 AC	2015	9	2	78.9	7.59	11.08	3.49		<===
Show		32404	20 15 49 +52 30 08	WAL 130 AD	2015	6	227	25.9	7.59	12.31	4.72

Quadruple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Cygnus		SAO	32404		HIP	99875		Tycho2	3937-01802-1
Gaia DR2	2184375527287030784		HD	193054		BD	BD+52 2666		Distance	228.83
Distance ly	746.44