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The calibration of the Stromgren photometric system for A, F and early G supergiants. I - The observational data
An empirical calibration of the Stromgren uvby-beta photometric systemfor the A, F, and early G supergiants is being derived. This paperexplains the observational program and the photometric reductiontechniques used and presents a catalog of new Stromgren photometry forover 600 A, F, and G supergiants.
| Hyades and Sirius supercluster members brighter than magnitude (V) 7.1. II - Right ascension six to twelve hours
The present star sample is contained in the Bright Star Catalogue andits Supplement, augmented with a further supplement of 788 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 788 starsdiscussed here, as well as all supercluster members.
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Посматрања и Астрометриски подаци
| Сазвежђа: | Једра |
| Ректацензија: | 08h21m09.32s |
| Deклинација: | -52°35'14.9" |
| Apparent магнитуда: | 7.022 |
| Даљина: | 165.289 parsecs |
| Proper motion RA: | -21.9 |
| Proper motion Dec: | -21.4 |
| B-T magnitude: | 7.323 |
| V-T magnitude: | 7.047 |
Каталог и designations:
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INHABITED SKY
