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UBV beta Database for Case-Hamburg Northern and Southern Luminous Stars
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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.
| 2000 A UV imaging of a 6 deg diameter field around MU Aurigae
UV imagery of a 6 deg diameter field centered on Mu Aurigae in thegalactic plane was obtained with the SCAP 2000 experiment dedicated toan UV sky survey. Photometric UV magnitudes at 2000 A are given here formore than 500 stars detected in the field. A star-counting method isapplied to give a fine description of the interstellar matterdistribution up to 1000 pc. The mean space density for B8-A3 stars isderived. Stars with an UV excess are detected and spectralreclassification of some single or binary stars is suggested.
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Membre dels grups següents:
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Dades d'Observació i Astrometria
| Constel·lació: | Auriga |
| Ascensió Recta: | 05h10m37.92s |
| Declinació: | +41°11'53.0" |
| Magnitud Aparent: | 9.457 |
| Moviment propi RA: | 3.8 |
| Moviment propi Dec: | -2.2 |
| B-T magnitude: | 9.427 |
| V-T magnitude: | 9.455 |
Catàlegs i designacions:
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