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Radial velocities of faint stars from objective prism plates
A simple method by which the approximate radial velocity of a star maybe obtained from objective prism plates is described in detail. Themethod has been used to derive the velocities of 41 faint stars, most ofwhich have metal-weak spectra and are shown to be high-velocity objects.It is shown that this method may be generalized so that the radialvelocities for all measurable stars on an objective prism plate can beobtained.
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Observation and Astrometry data
| Constellation: | Κόραξ |
| Right ascension: | 12h04m15.39s |
| Declination: | -21°02'39.3" |
| Apparent magnitude: | 9.931 |
| Proper motion RA: | -3.2 |
| Proper motion Dec: | -12.8 |
| B-T magnitude: | 10.337 |
| V-T magnitude: | 9.965 |
Catalogs and designations:
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