TYC 1086-2194-1

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CCD astrometry and instrumental Delta V photometry of visual double stars. V. Differential measurements of pairs with angular separations 1arcsec to 4arcsec
We present angular separations, position angles and Delta V instrumentalmagnitude differences of 83 visual double stars with angular separationsaround two arcseconds. Our observations were made by means of a CCDdetector attached to the Kryonerion 1.2 m telescope. 12 of them arecommon proper motion stars and their components should therefore bestars of common origin. Based on observations made at KryonerionObservatory, Greece. Table 2 only available at the CDS via anonymous ftpto cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html}

A photometric study of wide visual double stars with significant relative proper motion
Photometric observations and uvby H-beta indices of 142 wide visualdouble stars are presented. Calibrations of the indices are used toderive MK class, color excess, absolute magnitude, effectivetemperature, and distance. The results are used to check candidatesdouble stars for the Hipparcos mission for opticity.

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Osservazione e dati astrometrici

Costellazione:	Delfino
Ascensione retta:	20^h24^m47.48^s
Declinazione:	+14Â°52'10.5"
Magnitudine apparente:	9.433
Moto proprio RA:	-15.7
Moto proprio Dec:	-24.7
B-T magnitude:	9.943
V-T magnitude:	9.476

Cataloghi e designazioni:

Nomi esatti	(Edit)
TYCHO-2 2000	TYC 1086-2194-1
USNO-A2.0	USNO-A2 0975-18856934
HIP	HIP 100687

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