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HD 150732

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ICCD Speckle Observations of Binary Stars. XXIII. Measurements during 1982-1997 from Six Telescopes, with 14 New Orbits We present 2017 observations of 1286 binary stars, observed by means ofspeckle interferometry using six telescopes over a 15 year period from1982 April to 1997 June. These measurements constitute the 23dinstallment in CHARA's speckle program at 2 to 4 m class telescopes andinclude the second major collection of measurements from the MountWilson 100 inch (2.5 m) Hooker Telescope. Orbital elements are alsopresented for 14 systems, seven of which have had no previouslypublished orbital analyses.
Period variation determination of the W UMa type star V502 OPH Photoelectric-photometry data of the W UMa system V502 Oph were madeduring June 1987 in Mexico. The observations are combined withpreviously published minima for the system to derive a quadraticephemeris. The results suggest that V502 has a smoothly decreasingperiod with a rate of change of -1.64 s/century.
BD +0 3566, a New Short Period Variable Star Not Available
Photoelectric Photometry of Stars in the Vilnius System in Kapteyn Areas SA:92 SA:108 and SA:112 Not Available
Improved Ephemeris, V502 Ophiuchi Not Available
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Observation and Astrometry data

Constellation:	Ophiucus
Right ascension:	16^h42^m52.23^s
Declination:	+00Â°04'30.9"
Apparent magnitude:	8.269
Distance:	179.856 parsecs
Proper motion RA:	10.2
Proper motion Dec:	4.7
B-T magnitude:	9.57
V-T magnitude:	8.377

Catalogs and designations:

Proper Names	(Edit)
HD 1989	HD 150732
TYCHO-2 2000	TYC 383-1218-1
USNO-A2.0	USNO-A2 0900-08886235
HIP	HIP 81829

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