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A TWO-COLOR DYE-TRANSFER PHOTOGRAPH OF M 33
MERLE F. WALKER
Publications of the Astronomical Society of the Pacific
Vol. 79, No. 467 (April 1967), pp. 119-124
Published by: Astronomical Society of the Pacific
Stable URL: http://www.jstor.org/stable/40674444
Page Count: 6
You can always find the topics here!Topics: Black and white photography, Colors, Red supergiants, Red giants, Film negatives, Infrared photography, Population I stars, Color photography, Population II stars, Matrices
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Photographs of M 33 in blue and infrared light have been used to prepare a two-color photograph by the dye-transfer process. This photograph shows the hot stars of Population I as blue or white, while the red supergiants of Population I and the red giants of Population II appear red. Features of the two-color photograph and advantages of the two-color method over black and white composite photography, and advantages of the dye-transfer method itself are discussed.
Publications of the Astronomical Society of the Pacific © 1967 The University of Chicago Press