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The Henry Draper Extension Charts: A catalogue of accurate positions, proper motions, magnitudes and spectral types of 86933 stars
The Henry Draper Extension Charts (HDEC), published in the form offinding charts, provide spectral classification for some 87000 starsmostly between 10th and 11th magnitude. This data, being highlyvaluable, as yet was practically unusable for modern computer-basedastronomy. An earlier pilot project (Roeser et al. 1991) demonstrated apossibility to convert this into a star catalogue, using measurements ofcartesian coordinates of stars on the charts and positions of theAstrographic Catalogue (AC) for subsequent identification. We presenthere a final HDEC catalogue comprising accurate positions, propermotions, magnitudes and spectral classes for 86933 stars of the HenryDraper Extension Charts.

A new list of 617 radial velocities in four galactic fields
Four stellar fields in the -30 deg galactic latitude have been surveyedfor radial velocities, using a 62 cm objective prism. Exact positions,spectral types, and approximate magnitudes are provided for 617 stars infour different 4 x 4 deg fields. B to F4 stars were found which haveGaussian velocity distributions.

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Dades d'Observació i Astrometria

Constel·lació:Taurus
Ascensió Recta:04h09m38.09s
Declinació:+11°28'02.7"
Magnitud Aparent:9.109
Moviment propi RA:-15.9
Moviment propi Dec:-41.9
B-T magnitude:9.853
V-T magnitude:9.171

Catàlegs i designacions:
Noms Propis   (Edit)
HD 1989HD 286561
TYCHO-2 2000TYC 674-306-1
USNO-A2.0USNO-A2 0975-00919780
HIPHIP 19427

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