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ICCD speckle observations of binary stars. VII - A duplicity survey of the Hyades cluster
The Hyades cluster is the nearest open cluster to the solar system, andits distance has long been a contentious issue. In order to expand thesample of Hyades binaries with potentially short-period visual orbits, aspeckle survey of 153 bright Hyades stars for possible multiplicity wasconducted at the KPNO 4 m Mayall telescope on November 23-27, 1991. Ofthese, one is graded as a suspected new binary, three are graded aspossible new binaries, and three are graded as definite new binaries,one of which has been confirmed from examination of an archivalobservation from 1989. Of these seven new visual resolutions, six havepossible spectroscopic components, two of which are probably the objectsobserved here, three certainly are not, and one may or may not be thecomponent observed.
| Helligkeiten und Eigenbewegungen in den Hyaden. Mit 6 Textabbildungen
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תצפית ומידע אסטרומטרי
| קבוצת-כוכבים: | שור |
| התרוממות ימנית: | 04h29m51.50s |
| סירוב: | +17°04'49.1" |
| גודל גלוי: | 9.389 |
| תנועה נכונה: | -34.6 |
| תנועה נכונה: | -9.1 |
| B-T magnitude: | 10.096 |
| V-T magnitude: | 9.448 |
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