18370+3452 STF 2352 AC

18^h 36^m 57.43^s +34° 51' 59.0" P.A. 161.00 sep 210.3 mag 8.06,10.45 Sp K0

Coord 2000	18370+3452		Discov num	STF2352		Comp	AC		Coord arcsec 2000	18 36 57.43 +34 51 59.0
Date first	1881		Date last	2015		Obs	14
Pa first	161		Pa last	160.7		P.A. Now (θ)	160.7°
Sep first	210.2		Sep last	210.296		Sep. Now (ρ)	210.296"
Mag pri	8.06		Mag sec	10.45		delta mag (ΔM)	2.39		Spectral class	K0 (yellow-orange)
Pri motion ra	-003		Sec motion ra	-007
Pri motion dec	-006		Sec motion dec	-005
Notes	N (See Notes)

rPM=0.479

Nature of this double is uncertain.

18370+3452 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 172131	67172	18 36 57 +34 51 59	STF 2352 AB	2016	20	287	15.9	8.06	10.63	2.57
Show		67172	18 36 57 +34 51 59	STF 2352 AC	2015	14	161	210.3	8.06	10.45	2.39		<===
Show		67172	18 36 57 +34 51 59	WAL 93 AD	2015	8	204	37.9	8.06	12.81	4.75

Quadruple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Lyra		SAO	67172		Tycho2	2645-01507-1		Gaia DR2	2094826185020137984
HD	172131