The double Cepheid CE Cassiopeiae in NGC 7790: tests of the theory of the instability strip and the calibration of the period-luminosity-color relation
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| Description | article by Sandage A. & Tammann G. A. published 1969 in Letters of the Astrophysical Journal |
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author: Allan Sandage |
| Publication date | August 1969 |
| Language | English |
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