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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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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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Observation and Astrometry data

Constellation:Γνώμων
Right ascension:15h35m47.21s
Declination:-56°54'14.0"
Apparent magnitude:8.399
Distance:97.276 parsecs
Proper motion RA:6.4
Proper motion Dec:-3.7
B-T magnitude:9.105
V-T magnitude:8.458

Catalogs and designations:
Proper Names
HD 1989HD 138589
TYCHO-2 2000TYC 8704-12-1
USNO-A2.0USNO-A2 0300-24098156
HIPHIP 76361

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