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Faint stars in the open cluster Trumpler 16
UBVRI photoelectric data on faint stars in the young open cluster Tr 16in the magnitude range V equals 12-15 are presented. Some of these starsare overluminous for their class, and others fall slightly below thereddening line for A0-type stars in the two-color diagram. Thepossibility is analyzed that some of them may still be in theevolutionary process of gravitational contraction. Comments about thereddening law in this region are made, and the HR diagram for all thestars assumed to be members of Tr 16 is presented.
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Anka |
| Sað Açýklýk: | 00h05m36.26s |
| Yükselim: | -51°15'37.8" |
| Görünürdeki Parlaklýk: | 7.347 |
| Uzaklýk: | 434.783 parsek |
| özdevim Sað Açýklýk: | 10.3 |
| özdevim Yükselim: | -13.9 |
| B-T magnitude: | 9.256 |
| V-T magnitude: | 7.505 |
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