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Interstellar extinction in the vicinity of the reflection nebula NGC 1333 in Perseus
The dependence of interstellar extinction on distance in the directionof a dark cloud around the reflection nebula NGC 1333 is determined onthe basis of photoelectric Vilnius photometry and photometricclassification of 78 stars. Two dust clouds are noted at distances 160and 220 pc. The first one, with mean extinction of 0.4 mag, is concludedto belong to the Taurus cloud complex and the second cloud, with meanextinction of 1.8 mag, belongs to the chain of dark clouds and otheryoung objects which is almost perpendicular to the spiral arm but liesabout 80 pc below the Galactic plane. The star BD +30 459 deg, whichilluminates the NGC 1333 nebula, is at a distance 212 pc from the sun.No extinction increase behind the Perseus cloud is detected.
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| Takýmyýldýz: | Kahraman |
| Sað Açýklýk: | 03h28m14.81s |
| Yükselim: | +31°54'50.7" |
| Görünürdeki Parlaklýk: | 9.06 |
| özdevim Sað Açýklýk: | -2.9 |
| özdevim Yükselim: | -2.8 |
| B-T magnitude: | 9.525 |
| V-T magnitude: | 9.099 |
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