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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.
| A preliminary compilation of DS-programme star positions
A catalog is presented of the double-star-program (DS-program) starpositions, listing right ascensions for 930 DSs and declinations for1225 DSs of the program. The positions were compiled from the observedvalues obtained between 1980 and 1987 with the meridian circles of sixUSSR observatories (the Moscow, Kazan', Kiev, Khar'kov, Odessa, andTashkent Observatories) and the Belgrade Observatory. The measurementsand the treatment of the observational material were performed using therelative method, and the FK-4 system stars were used as reference stars.
| Micrometer Observations of Double Stars and New Pairs - Part Ten
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1980ApJS...44..111H&db_key=AST
| Mesures d'étoiles doubles faites à Strasbourg en 1954
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Miembro de los siguientes grupos:
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Datos observacionales y astrométricos
| Constelación: | Ofiuco |
| Ascensión Recta: | 17h59m01.63s |
| Declinación: | +02°02'16.1" |
| Magnitud Aparente: | 8.619 |
| Distancia: | 179.211 parsecs |
| Movimiento Propio en Ascensión Recta: | -1 |
| Movimiento Propio en Declinación: | -6.4 |
| B-T magnitude: | 8.837 |
| V-T magnitude: | 8.637 |
Catálogos y designaciones:
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INHABITED SKY
