✦ LIBER ✦

PROVISIONAL SUNSPOT-NUMBERS FOR OCTOBER TO DECEMBER, 1957

✍ Scribed by Waldmeier, M.

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Provisional sunspot-numbers for October

✍ Waldmeier, M. 📂 Article 📅 1949 🏛 American Geophysical Union 🌐 English ⚖ 23 KB

Provisional sunspot-numbers for October

✍ Waldmeier, M. 📂 Article 📅 1950 🏛 American Geophysical Union 🌐 English ⚖ 44 KB

Provisional sunspot-numbers for October

✍ Waldmeier, M. 📂 Article 📅 1951 🏛 American Geophysical Union 🌐 English ⚖ 49 KB

Provisional sunspot-numbers for October

✍ Waldmeier, M. 📂 Article 📅 1952 🏛 American Geophysical Union 🌐 English ⚖ 48 KB

Provisional sunspot-numbers for October

✍ Waldmeier, M. 📂 Article 📅 1953 🏛 American Geophysical Union 🌐 English ⚖ 47 KB

Provisional sunspot-numbers for October

✍ Waldmeier, M. 📂 Article 📅 1954 🏛 American Geophysical Union 🌐 English ⚖ 45 KB