EditorialThe size and the motig vertiginis, Earth, Moon, other planets and Sun with sunspots, Tab. XXIV, p. 31, Tobias Mayer: Mathematischer Atlas, in welchem auf 60 Tabellen alle Theile der Mathematic vorgestellet und nicht allein ?berhaupt zu bequemer Wiederh...
EditorialLesions in the sun appearing observateae the year 1611 to the breadth deg. 48 min. 40., Sunspots in 1611, signed: Alex., Mair Aug. incidit, S. 11, Mair, Alexander (inc.), 1603, Ioannis Bayeri Uranometria omnium asterismorum (...). Augustae Vindelicorum...
EditorialGlass Positive - 'Distribution of Radial Velocities in Sunspots', circa 1920s, Glass slide of a chart showing distribution of radial velocities in sunspots, from a book by American astronomer Charles Edward St John, circa 1920s. It is part of a collect...
EditorialThe size and the motig vertiginis, Earth, Moon, other planets and Sun with sunspots, Tab. XXIV, p. 31, Tobias Mayer: Mathematischer Atlas, in welchem auf 60 Tabellen alle Theile der Mathematic vorgestellet und nicht allein ?berhaupt zu bequemer Wiederh...