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Four-colour photometry of B stars north of B = + 45 deg and comparison with the south
Four-color photometry of 33 Henry Draper B stars north of b = + 45 degis presented. Most are little-reddened B or intermediate-A stars. A newAm star is discovered. The new measures essentially complete uvbyphotometry of all HD B stars within 45 deg of either galactic pole. Thenorthern and southern cones of HD B stars are compared, and selectioneffects deduced. Far from the galactic plane, it appears that B starsmay be equally distributed north and south of the plane; closer to thesun, an asymmetry associated with Gould's Belt is evident.
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Osservazione e dati astrometrici
| Costellazione: | Orsa Minore |
| Ascensione retta: | 14h09m26.51s |
| Declinazione: | +69°35'25.6" |
| Magnitudine apparente: | 7.321 |
| Distanza: | 189.753 parsec |
| Moto proprio RA: | -27.3 |
| Moto proprio Dec: | 10.7 |
| B-T magnitude: | 7.291 |
| V-T magnitude: | 7.319 |
Cataloghi e designazioni:
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