18073+0934 STT 342 Aa,Ab (72 Oph)

18^h 07^m 21.02^s +09° 33' 49.2" P.A. 156.00 sep 1.6 mag 3.74,7.50 Sp A4III dist. 26.63 pc (86.87 l.y.)

Coord 2000	18073+0934		Discov num	STT 342		Comp	Aa,Ab		Coord arcsec 2000	18 07 21.02 +09 33 49.2
Date first	1842		Date last	1876		Obs	8
Pa first	157		Pa last	156		P.A. Now (θ)	156°
Sep first	1.3		Sep last	1.6		Sep. Now (ρ)	1.6"
Mag pri	3.74		Mag sec	7.50		delta mag (ΔM)	3.76		Spectral class	A4III (white)
Pri motion ra	-062		Sec motion ra
Pri motion dec	+080		Sec motion dec
Notes	N X (See Notes, Dubious double)

Nature of this double is uncertain.

18073+0934 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	72 Oph	123142	18 07 21 +09 33 49	STT 342 Aa,Ab	1876	8	156	1.6	3.74	7.50	3.76		<===
Show		123142	18 07 21 +09 33 49	STT 342 AB	2016	10	298	25.0	3.74	13.90	10.16
Show		123142	18 07 21 +09 33 49	STT 342 AC	2015	11	163	64.3	3.74	11.45	7.71
Show		123142	18 07 21 +09 33 49	DAL 36 AD	2010	2	48	24.2	3.74	14.80	11.06

Quintuple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	72 Oph		Constellation	Ophiuchus		SAO	123142		HIP	88771
Tycho2	1012-01661-1		Gaia DR2	4482432246130215296		HD	165777		HR	6771
GC	24695		ADS	11076		GL	Wo 9615A		BD	BD+09 3564
Flamsteed	72 Ophiuchi		Flamsteed name	72 Oph		FK5	680		Distance	26.63
Distance ly	86.87