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HD 68040


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Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS
Radial velocities have been determined for a sample of 2930 B2-F5 stars,95% observed by the Hipparcos satellite in the north hemisphere and 80%without reliable radial velocity up to now. Observations were obtainedat the Observatoire de Haute Provence with a dispersion of 80Ä,mm(-1) with the aim of studying stellar and galactic dynamics.Radial velocities have been measured by correlation with templates ofthe same spectral class. The mean obtained precision is 3.0 km s(-1)with three observations. A new MK spectral classification is estimatedfor all stars. Based on observations made at the Haute ProvenceObservatory, France and on data from The Hipparcos Catalogue, ESA.Tables 4, 5 and 6 are only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr or viahttp://cdsweb.u-strasbg.fr/Abstract.htm

Photoelectric observations of lunar occultations. XV
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.

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Datos observacionales y astrométricos

Constelación:Cangrejo
Ascensión Recta:08h11m30.72s
Declinación:+23°28'56.2"
Magnitud Aparente:8.596
Distancia:335.57 parsecs
Movimiento Propio en Ascensión Recta:-10.6
Movimiento Propio en Declinación:-6
B-T magnitude:8.7
V-T magnitude:8.605

Catálogos y designaciones:
Nombres Propios
HD 1989HD 68040
TYCHO-2 2000TYC 1927-1679-1
USNO-A2.0USNO-A2 1125-05534192
HIPHIP 40102

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