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HD 74740


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Photometric indices V, B-V, and U-B were measured for about 560 stars ofthe AGK3R and NPZT catalogs between BD declinations 11 deg and 23 deg,using the 40-cm Cassegrain telescope of the Kvistaberg Observatory fromApril 1986 to May 1987. The observation procedure and the reductiontechnique were the same as in the earlier papers of this series by Oja(1984, 1985, 1986, and 1987). The mean errors were calculated from theinternal consistency of the data. The accuracy was found to be the sameas for the earlier parts of the survey.

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The last (or possibly penultimate) paper in a series on lunaroccultations presents observations of 404 phenomena, preceded by somegeneral remarks of a retrospective nature. The series of observationsbegan in 1968. Data for 20 doubles or suspected doubles are presented,ranked in order of certainty, with designation 3 representing thesurest. Thirteen of the cases refer to stars not previously noted asdoubles. Seven determinations of angular diameters are presented, ofwhich three have been previously observed.

Photometrie der Präsepe-Umgebung mit kurzbrennweitigen Schmidt-Spiegeln. Mit 7 Textabbildungen
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Datos observacionales y astrométricos

Constelación:Cangrejo
Ascensión Recta:08h46m28.90s
Declinación:+22°21'07.8"
Magnitud Aparente:8.204
Distancia:143.062 parsecs
Movimiento Propio en Ascensión Recta:-38.6
Movimiento Propio en Declinación:-15
B-T magnitude:8.49
V-T magnitude:8.228

Catálogos y designaciones:
Nombres Propios   (Edit)
HD 1989HD 74740
TYCHO-2 2000TYC 1399-938-1
USNO-A2.0USNO-A2 1050-05855214
HIPHIP 43078

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