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HD 138589


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ICCD Speckle Observations of Binary Stars. XXIII. Measurements during 1982-1997 from Six Telescopes, with 14 New Orbits
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Two-colour photometry for 9473 components of close Hipparcos double and multiple stars
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ICCD speckle observations of binary stars. VIII - Measurements during 1989-1991 from the Cerro Tololo 4 M telescope
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Micrometer observations of double stars and new pairs. XIII
From a program of double star observations which emphasizes orbital,neglected, and newly discovered pairs, results obtained from October1984 to January 1987 are presented. A total of 3030 visual and 550photographic measures are listed. The positions in WDS format andDurchmusterung numbers are shown for 117 pairs for which firstobservations appear in this paper. Magnitudes are estimated for some ofthe objects.

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Datos observacionales y astrométricos

Constelación:Regla
Ascensión Recta:15h35m47.21s
Declinación:-56°54'14.0"
Magnitud Aparente:8.399
Distancia:97.276 parsecs
Movimiento Propio en Ascensión Recta:6.4
Movimiento Propio en Declinación:-3.7
B-T magnitude:9.105
V-T magnitude:8.458

Catálogos y designaciones:
Nombres Propios   (Edit)
HD 1989HD 138589
TYCHO-2 2000TYC 8704-12-1
USNO-A2.0USNO-A2 0300-24098156
HIPHIP 76361

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