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Photoelectric Photometry of Stars in the Orion Standard Region
Magnitudes and color indices in the Vilnius seven-color photometricsystem are given for 108 stars in the Orion standard region around theOrion Belt and the star lambda Orionis. New spectral and luminosityclasses, estimated from the photometric data, are given for some of thestars.
| Composite spectra. V - Orbital elements for 30 systems
A comprehensive survey of bright composite-spectrum binaries in thenorthern sky has provided so many radial-velocity data that orbits cannow be determined for many objects whose orbits were hitherto unknown orelse insecure or actually erroneous. Elements are given for the orbitsof 30 such objects, thereby more than doubling the number ofcomposite-spectrum binaries with known orbits.
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Observation and Astrometry data
| Constellation: | Poissons |
| Right ascension: | 01h12m05.28s |
| Declination: | +28°14'53.3" |
| Apparent magnitude: | 9.077 |
| Proper motion RA: | 31.6 |
| Proper motion Dec: | -19.8 |
| B-T magnitude: | 9.667 |
| V-T magnitude: | 9.126 |
Catalogs and designations:
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