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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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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Kucuk Ayi |
| Sað Açýklýk: | 14h09m26.51s |
| Yükselim: | +69°35'25.6" |
| Görünürdeki Parlaklýk: | 7.321 |
| Uzaklýk: | 189.753 parsek |
| özdevim Sað Açýklýk: | -27.3 |
| özdevim Yükselim: | 10.7 |
| B-T magnitude: | 7.291 |
| V-T magnitude: | 7.319 |
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