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18058+2127
STT 341 AB,C
V772 Her

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

18058+2127 STT 341 AB,C (V772 Her)

18^h 05^m 49.72^s +21° 26' 45.6" P.A. 171.00 sep 28.2 mag 7.20,10.56 Sp G0V dist. 39.45 pc (128.69 l.y.)

Coord 2000	18058+2127		Discov num	STT 341		Comp	AB,C		Coord arcsec 2000	18 05 49.72 +21 26 45.6
Date first	1894		Date last	2015		Obs	19
Pa first	173		Pa last	171.1		P.A. Now (θ)	171.1°
Sep first	27.9		Sep last	28.238		Sep. Now (ρ)	28.238"
Mag pri	7.20		Mag sec	10.56		delta mag (ΔM)	3.36		Spectral class	G0V (yellow)
Pri motion ra	-022		Sec motion ra	-027
Pri motion dec	-041		Sec motion dec	-039
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.114 (< 0.3, Physical double)

This double is physical.

18058+2127 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		85723	18 05 50 +21 26 46	STT 341 AB	2021	275	89	0.3	7.39	8.82	1.43	Y
Show	V772 Her	85723	18 05 50 +21 26 46	STT 341 AB,C	2015	19	171	28.2	7.20	10.56	3.36		<===
Show		85723	18 05 50 +21 26 46	STT 341 AB,D	2009	16	99	39.5	7.20	10.48	3.28
Show		85723	18 05 50 +21 26 46	STT 341 AB,E	2018	19	38	66.5	7.20	10.25	3.05
Show		85723	18 05 50 +21 26 46	STT 341 AB,F	2009	9	357	111.6	7.20	11.49	4.29
Show		85723	18 05 50 +21 26 46	STT 341 AB,G	2018	20	239	132.5	7.20	7.64	0.44
Show		85723	18 05 50 +21 26 46	MET 82 AH	2004	1	63	2.6	5.80	14.30	8.50
Show		85723	18 05 50 +21 26 46	MET 82 AI	2004	1	111	6.5	5.80	18.80	13.00
Show		85723	18 05 50 +21 26 46	MET 82 AJ	2015	2	34	13.1	5.80	16.40	10.60

Decuple system
11 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Var name	V772 Her		Constellation	Hercules		SAO	85723		HIP	88637
Tycho2	1566-00747-1		Gaia DR2	4576326312901654272		HD	165590		BD	BD+21 3302
Distance	39.45		Distance ly	128.69