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The gas shell of the Milky Way
The characteristics of the gas shell which surrounded the Galaxy arediscussed. High-velocity clouds and fountains of gas are described. Thedistances to the clouds and the structure of the halo gas are examined.
| Interstellar polarization from observations of A and F stars in high and intermediate galactic latitudes, and from stars in the Mathewson and Ford polarization catalogue
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1986A&AS...64..487K&db_key=AST
| Hyades and Sirius supercluster members brighter than magnitude(V) 7.1. I - The first six hours of right ascension
This is the first of four papers listing the probable members of theHyades and Sirius superclusters among stars brighter than V = 7.1 mag.The star sample is contained in the Bright Star Catalogue and itsSupplement, augmented with a further supplement of 550 stars foundduring various observing programs over the past 40 years. Accurate,four-color and H-beta, or (RI), photometry is available for most of thesupercluster members. The criteria for membership are the comparisons ofthe proper motion, radial velocity, and luminosity obtained from thesupercluster parameters with the observed motions and the luminosityderived from the photometric parameters. New proper motions, based onall available catalogs, have been derived for the additional 550 starsdiscussed here, as well as for all supercluster members.
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Membro dei seguenti gruppi:
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Osservazione e dati astrometrici
| Costellazione: | Dorado |
| Ascensione retta: | 05h20m28.20s |
| Declinazione: | -60°46'47.4" |
| Magnitudine apparente: | 7.093 |
| Distanza: | 162.602 parsec |
| Moto proprio RA: | -5.8 |
| Moto proprio Dec: | 29.8 |
| B-T magnitude: | 7.214 |
| V-T magnitude: | 7.103 |
Cataloghi e designazioni:
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