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The common origin of some open clusters
Eight open clusters have been observed with uvby-beta photometry and forseven of them the metal abundances have been determined. Six of thesehave similar metallicities. They are close in space and are also knownto have similar ages and radial velocities. These clusters are suspectedof having a common origin. Some studies are made of the reliability ofthe photometric system. A large gain in limiting magnitude can beachieved against an unimportant loss of accuracy if interference filtersare removed.
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Observation and Astrometry data
| Constellation: | Segel des Schiffs |
| Right ascension: | 08h05m31.45s |
| Declination: | -46°39'15.1" |
| Apparent magnitude: | 8.208 |
| Distance: | 454.545 parsecs |
| Proper motion RA: | -3.5 |
| Proper motion Dec: | 7.3 |
| B-T magnitude: | 10.324 |
| V-T magnitude: | 8.383 |
Catalogs and designations:
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