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Intermediate band, H-beta, and RI photometry of a large sample of stars unbiased with respect to their motion. I - The F-type stars
Intermediate band and H-beta data from a sample of 1000 stars earlierthan type G2 are presented and discussed relative to the stars'luminosities, metal abundances, and motion. Two groups of stars areconsidered, one within 10 arcsec of the South Galactic Pole and 8.5-8.6mag stars contained in the Moore-Paddock (1950) and Wayman (1960)samples (MP-W). The MP-W stars are mainly old disk population stars withmetal abundances of 4-0.25 solar values. Possible age-abundancedistribution-luminosity connections are explored, as are techniques forseparating old and young disk population objects.
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Guney Baligi |
| Sað Açýklýk: | 23h00m13.07s |
| Yükselim: | -27°55'23.5" |
| Görünürdeki Parlaklýk: | 8.706 |
| Uzaklýk: | 130.208 parsek |
| özdevim Sað Açýklýk: | 46 |
| özdevim Yükselim: | -23.5 |
| B-T magnitude: | 9.248 |
| V-T magnitude: | 8.751 |
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