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A spectrophotometric survey of stars along the Milky Way. IV
In the present paper a catalogue of spectrophotometric quantities,spectral types, monochromatic magnitudes and colour equivalents is givenfor all stars brighter than the magnitude m4400 = 10.5 in aregion of the Milky Way in Perseus. No absorption is found for starscloser than about r = 100 pc. The absorbing clouds are situated atdistances closer than 1 kpc and at about 2.5 kpc in the local arm andthe Perseus arm, respectively. The space between the two arms is freefrom absorption. It is also concluded that the Perseus arm continuesbeyond l = 140 deg, containing not only hydrogen gas but also dust to atleast l = 150 deg), while the content of OB stars decreases abruptly atl = 140 deg.
| A photometric study of some early B stars whose spectral lines vary in sharpness.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970AJ.....75..818P&db_key=AST
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| Сазвежђа: | Жирафа |
| Ректацензија: | 03h26m48.64s |
| Deклинација: | +60°24'18.1" |
| Apparent магнитуда: | 7.572 |
| Даљина: | 245.098 parsecs |
| Proper motion RA: | 7.9 |
| Proper motion Dec: | -11.1 |
| B-T magnitude: | 7.802 |
| V-T magnitude: | 7.591 |
Каталог и designations:
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