Anschlußbeobachtungen am 68 cm-Refraktor
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Fr. Schembor
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Article
📅
1929
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John Wiley and Sons
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English
⚖ 333 KB
👁 1 views
14~14 IO,IO 4-12 9 25.9 4-22 I 8 10.1 + 2 2 26 27.5 -0.747 1 0.729 I 0.735 -471 P a p a g e n a . I -I+25 54 44.1