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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 catalogue of visual extinction in Taurus and Perseus
A catalog containing high angular resolution data on visual extinctionin Taurus and Perseus has been compiled from star counts on the printsof the Palomar Observatory Sky Survey. This catalog may serve as afinding list for infrared and radio molecular searches of protostellarobjects and high density regions. It could be used as a statisticalsource of data for fragmentation and physical properties studies of darkclouds. The star counts procedure is discussed.
| Errata in Magnitudes of Stars in AGK3
Not Available
| Photoelectric UBV sequences in Tau.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1967AJ.....72.1012L&db_key=AST
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Miembro de los siguientes grupos:
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Datos observacionales y astrométricos
| Constelación: | Tauro |
| Ascensión Recta: | 04h11m56.19s |
| Declinación: | +27°08'45.2" |
| Magnitud Aparente: | 9.528 |
| Movimiento Propio en Ascensión Recta: | -4 |
| Movimiento Propio en Declinación: | -3.6 |
| B-T magnitude: | 10.986 |
| V-T magnitude: | 9.649 |
Catálogos y designaciones:
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