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Uvbyβ photometry of all stars earlier than G0 and brighter than m_pg_~10.3mag in Selected Area 194 Four-colour and Hβ photometry is introduced for 594 stars earlierthan G0 in the Kapteyn's Selected Area 194. The results give V, b-y,m_1_, c_1_, and β on the standard systems, with overall rms errorsfor one observation of one star of 0.009mag, 0.004mag, 0.006mag,0.009mag, and 0.009mag, respectively. The data cover an area of about5deg x 5deg and is intended for an investigation of the distribution ofthe interstellar medium toward the northern part of the SouthernCoalsack and its surroundings. A comparison to earlier results obtainedby other authors has shown that the c_1_ indices obtained for the latetype stars were underestimated, in average, by 0.020mag. Since suchdifference may account for an error of little more than 10% in theestimated stellar distances, a correction was applied to the c_1_ indexof these stars.
| A spectral survey of the southern Milky Way 1 : general description and catalogue 1 (l=306 -318 degrees). Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974A&AS...16..445S&db_key=AST
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Gözlemler ve gökölçümü verileri
Takýmyýldýz: | Erbogan |
Sað Açýklýk: | 13h21m31.93s |
Yükselim: | -60°48'31.9" |
Görünürdeki Parlaklýk: | 8.698 |
Uzaklýk: | 258.398 parsek |
özdevim Sað Açýklýk: | -10 |
özdevim Yükselim: | -10.2 |
B-T magnitude: | 8.885 |
V-T magnitude: | 8.714 |
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