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HD 158734

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A second list of wide visual binaries Not Available
A second list of wide visual binaries Not Available
The proper motions of Struve double stars The proper motions of the components of 103 Struve double stars fromMuller's list of neglected stars and of 15 other systems were measuredrelative to sets of reference stars, for the primary purpose ofdistinguishing physical from optical pairs. A by-product of thisinvestigation is a list of measured position angles and distances ofthese objects, at two epochs each.

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Observation and Astrometry data

Constellation:	ヘルクレス座
Right ascension:	17^h29^m26.85^s
Declination:	+32Â°42'33.8"
Apparent magnitude:	8.752
Distance:	143.062 parsecs
Proper motion RA:	7.1
Proper motion Dec:	13.4
B-T magnitude:	9.202
V-T magnitude:	8.79

Catalogs and designations:

Proper Names	(Edit)
HD 1989	HD 158734
TYCHO-2 2000	TYC 2609-1549-1
USNO-A2.0	USNO-A2 1200-08431774
HIP	HIP 85592

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