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Ýlgili Makaleler
NGC 6738: Not a real open cluster A photometric, astrometric and spectroscopic investigation of the poorlystudied open cluster NGC 6738 has been performed in order to ascertainits real nature. NGC 6738 is definitely not a physical stellar ensemble:photometry does not show a defined mean sequence, proper motions andradial velocities are randomly distributed, spectro-photometricparallaxes range between 10 and 1600 pc, and the apparent luminosityfunction is identical to that of the surrounding field. NGC 6738therefore appears to be an apparent concentration of a few bright starsprojected on patchy background absorption.
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Gözlemler ve gökölçümü verileri
Takýmyýldýz: | Kartal |
Sað Açýklýk: | 19h02m36.85s |
Yükselim: | +11°46'17.6" |
Görünürdeki Parlaklýk: | 9.974 |
özdevim Sað Açýklýk: | 5.1 |
özdevim Yükselim: | 1.9 |
B-T magnitude: | 10.652 |
V-T magnitude: | 10.03 |
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