Nr 12 und 13 (1 resultados)

Paperback. Condición: New. Print on Demand. This book presents observations of comets and minor planets made at the Hamburg Observatory in Bergedorf, Germany, from 1909 to 1912. These observations, made using the 26 cm refractor, include measurements of the positions and brightnesses of these celestial objects. The observations were made by three astronomers: K. Graff, H. Thiele and K. F. Bottlinger. The results are published in the form of tables, which also include the comparison stars used for the measurements. This book is a valuable source of information for astronomers and historians of astronomy interested in the study of comets and minor planets during this period. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…