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UBV photometry of stars whose positions are accurately known. VII Attention is given to UBV photometry for about 100 equatorial andsouthern stars of the faint extension of the FK5 catalog whichpreviously lacked accurate V photometry. The observations were performedwith the 60-cm Cassegrain telescope of the Royal Swedish Academy ofSciences at La Palma, Canary Islands, during February-March andAugust-September 1992. Extinction coefficients were derived, separatelyfor every night, for the V magnitude as well as for the colors.
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sonraki gruplarýn üyesi:
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Gözlemler ve gökölçümü verileri
Takýmyýldýz: | Irmak |
Sað Açýklýk: | 03h25m20.31s |
Yükselim: | -04°39'18.9" |
Görünürdeki Parlaklýk: | 6.999 |
Uzaklýk: | 185.529 parsek |
özdevim Sað Açýklýk: | 5.4 |
özdevim Yükselim: | 6 |
B-T magnitude: | 8.18 |
V-T magnitude: | 7.097 |
Kataloglar ve belirtme:
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