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Vilnius Photometry of Stars in the Area of SA 57
Interstellar reddening, as a function of distance in the direction ofthe North Galactic Pole (SA 57), is determined using the two-dimensionalclassification of 63 stars observed in the Vilnius photometric system.The average value of A_V calculated for the stars up to 800 pc distanceis close to zero (the mean value is A_V=0.01 mag) with a standarddeviation of the order of sigma =+/- 0.1 mag. This dispersion of pointsis exactly what is expected from the errors of measurement andclassification.
| Photoelectric photometry of early-type stars in a Milky Way field in Cepheus
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970A&AS....2..251S&db_key=AST
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Observation and Astrometry data
| Constellation: | Céphée |
| Right ascension: | 22h19m33.40s |
| Declination: | +60°56'51.1" |
| Apparent magnitude: | 9.379 |
| Proper motion RA: | 5.7 |
| Proper motion Dec: | 1.5 |
| B-T magnitude: | 9.728 |
| V-T magnitude: | 9.408 |
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