18181+2318 BUP 181 AB (HD 168323)

18^h 18^m 07.72^s +23° 17' 49.0" P.A. 223.00 sep 37.5 mag 6.68,11.50 Sp K5 dist. 497.51 pc (1622.88 l.y.)

Coord 2000	18181+2318		Discov num	BUP 181		Comp	AB		Coord arcsec 2000	18 18 07.72 +23 17 49.0
Date first	1894		Date last	2015		Obs	8
Pa first	223		Pa last	222.7		P.A. Now (θ)	222.7°
Sep first	37.6		Sep last	37.539		Sep. Now (ρ)	37.539"
Mag pri	6.68		Mag sec	11.50		delta mag (ΔM)	4.82		Spectral class	K5 (yellow-orange)
Pri motion ra	+012		Sec motion ra	+005
Pri motion dec	-012		Sec motion dec	-006
Notes

rPM=0.543

Nature of this double is uncertain.

18181+2318 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 168323	85906	18 18 08 +23 17 49	BUP 181 AB	2015	8	223	37.5	6.68	11.50	4.82		<===
Show		85906	18 18 08 +23 17 49	BUP 181 AC	2015	16	125	153.7	6.68	10.04	3.36

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 168323		Constellation	Hercules		SAO	85906		HIP	89683
Tycho2	2093-00636-1		Gaia DR2	4530430498529889536		HD	168323		HR	6854
GC	24982		BD	BD+23 3299		Distance	497.51		Distance ly	1622.88