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V 439 CYG, The Red Star that Became Blue

✍ Scribed by V.F. Polcaro; L. Norci

No coin nor oath required. For personal study only.

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The unusual star V439 Cyg

✍ V. F. Polcaro; C. Rossi; L. Norci; F. Giovannelli 📂 Article 📅 1990 🏛 Springer Netherlands 🌐 English ⚖ 316 KB

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✍ B. F. Yudin; V. I. Shenavrin; E. A. Kolotilov; A. A. Tatarnikova; A. M. Tatarnik 📂 Article 📅 2005 🏛 Springer 🌐 English ⚖ 270 KB