EditorialCometary Motion, Movement of passing comet, no. LXXI, after p. 86, 1842, Charles F. Blunt: The beauty of the heavens: a pictorial display of the astronomical phenomena of the universe. One hundred and four coloured scenes illustrating a familiar lectur...
EditorialThe calculation of the length, Sketches for the calculation of cometary orbits at C / 1665 F1 in 1665, signed: author sculps, fig. F, Hevelius, Johannes, Johannes Hevelius: Johannis Hevelii descriptio cometae anno aerae Christ. M.DC.LXV. exorti, cum ge...