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HD 224610


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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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Speckle observations with PISCO in Merate - II. Astrometric measurements of visual binaries in 2004
We present relative astrometric measurements of visual binaries takenduring the second semester of 2004 with the Pupil Interferometry Specklecamera and Coronagraph (PISCO) at the 1-m Zeiss telescope of the BreraAstronomical Observatory, in Merate, Italy. We performed 207 newobservations of 194 objects with angular separations in the range0.1-4.0 arcsec and an accuracy better than ~0.01 arcsec. Our samplecontains orbital couples as well as binaries whose motion is stilluncertain. Our purpose is to improve the accuracy of the orbits andconstrain the masses of the components.Those measurements show that the orbit of ADS 15115 needs to be revised;we propose a new orbit for this object.

Speckle Interferometry at the US Naval Observatory. V.
The results of 1544 speckle interferometric observations of 637 binarystars, ranging in separation from 0.25" to 5.25", are tabulated. Theseobservations were obtained using the 66 cm refractor at the US NavalObservatory in Washington, DC, with an intensified CCD detector. This isthe fifth in a series of papers presenting measures obtained with thissystem and covers the period 1998 January 1 through December 31. Randomerrors for all measures are estimated to be 17.6 mas in separation and0.55d/ρ in position angle, where ρ is the separation inarcseconds.

Two-colour photometry for 9473 components of close Hipparcos double and multiple stars
Using observations obtained with the Tycho instrument of the ESAHipparcos satellite, a two-colour photometry is produced for componentsof more than 7 000 Hipparcos double and multiple stars with angularseparations 0.1 to 2.5 arcsec. We publish 9473 components of 5173systems with separations above 0.3 arcsec. The majority of them did nothave Tycho photometry in the Hipparcos catalogue. The magnitudes arederived in the Tycho B_T and V_T passbands, similar to the Johnsonpassbands. Photometrically resolved components of the binaries withstatistically significant trigonometric parallaxes can be put on an HRdiagram, the majority of them for the first time. Based on observationsmade with the ESA Hipparcos satellite.

Speckle Interferometry at the US Naval Observatory. IV.
The results of 1314 speckle interferometric observations of 625 binarystars, ranging in separation from 0.2" to 5.2" with a limiting secondarymagnitude of V=11, are tabulated. These observations were obtained usingthe 66 cm refractor at the US Naval Observatory in Washington, DC, withan intensified CCD detector. This is the fourth in a series of paperspresenting measures obtained with this equipment and covers the period1997 January 1 through December 31. Random errors for all measures areestimated to be 18 mas in separation and 0.57d/rho in position angle,where rho is the separation in arcseconds.

Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS
Radial velocities have been determined for a sample of 2930 B2-F5 stars,95% observed by the Hipparcos satellite in the north hemisphere and 80%without reliable radial velocity up to now. Observations were obtainedat the Observatoire de Haute Provence with a dispersion of 80Ä,mm(-1) with the aim of studying stellar and galactic dynamics.Radial velocities have been measured by correlation with templates ofthe same spectral class. The mean obtained precision is 3.0 km s(-1)with three observations. A new MK spectral classification is estimatedfor all stars. Based on observations made at the Haute ProvenceObservatory, France and on data from The Hipparcos Catalogue, ESA.Tables 4, 5 and 6 are only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr or viahttp://cdsweb.u-strasbg.fr/Abstract.htm

Speckle Interferometry at the US Naval Observatory. III.
Position angles and separations resulting from 2578 speckleinterferometric observations of 590 binary stars are tabulated. This isthe third in a series of papers presenting measures obtained using the66 cm refractor at the US Naval Observatory in Washington, DC, andcovers the period from 1995 June through 1996 December. Program starsrange in separation from 0.2" to 4.3", with a limiting magnitude ofV=11. Random errors are estimated to be 17.0 mas in separation and0.56d/rho in position angle, where rho is the separation in arcseconds.These are the first results acquired using an improved intensified CCDdetector. The new detector, in concert with an intensity-filteringtechnique applied in software, has permitted a 1 mag increase in dynamicrange, to 3.5 mag, for pairs separated by about 2". The instrumentationand calibration are briefly described, with an emphasis on thecharacteristics of the new detector. The software filter used toincrease the dynamic range is also described.

Multicolor photometry of metallic-line stars. III. A photometric catalogue
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974RMxAA...1..175M&db_key=AST

Catalogue of AM stars with known spectral types
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Mikrometermessungen von Doppelsternen. VII
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970A&AS....1..393H&db_key=AST

Mesures d'etoiles doubles faites AU 38cm de l'Observatoire de Paris.
Not Available

Catalogue et bibliographie des étoiles A à spectre particulier - Deuxième supplément
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Mesures d'étoiles doubles faites au réfracteur de 38 cm de l'Observatoire de Nice
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Mikrometermessungen von Doppelsternen. III
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Mesures d'étoiles doubles
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Catalogue et bibliographie des étoiles A à spectre particulier
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Micrometer Measures of Double Stars.
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Yerkes actinometry. Zone +73deg to +90deg.
Not Available

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Observation and Astrometry data

Constellation:Κηφεύς
Right ascension:23h59m10.63s
Declination:+74°48'26.5"
Apparent magnitude:8.506
Distance:135.87 parsecs
Proper motion RA:27.7
Proper motion Dec:-3.9
B-T magnitude:8.921
V-T magnitude:8.541

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 224610
TYCHO-2 2000TYC 4491-1195-1
USNO-A2.0USNO-A2 1575-05953427
HIPHIP 118257

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