Nuvens escuras austrais. I - contagem de estrelas e extinções visuais
DOI:
https://doi.org/10.5433/1679-0359.1986v7n2p54Keywords:
Dark clouds, Visual extinctions, Star counts.Abstract
Star counts of 3 southern dark clouds were performed using the techniques developed by Dickman (1976) in order to determine the visual extinction, AV, Using the ESO (B), SRC-J and ESO (R) plates, counts were made in the cloud and comparison fields, the latter being presumably free of obscurity. Various globules were identified in the clouds and parameters as dimension and visual extinction were estimated.
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