Navegação Ciências Exatas e da Terra por Assunto "Photometry"
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Strip photometry of diffuse objects : i. the structure of comets kohoutek (1973 xii) and bradfield (1974 iii)
(1977) [Artigo de periódico]A high signal to noise ratio and good one dimensional resolution are obtained by scanning a narrow slit across extended objects. Several observations of two comets give information on total brightness and on the density ...