Supplementary Notes to the Atlas Stellarum Variabilium (Classic Reprint)

Excerpt from Supplementary Notes to the Atlas Stellarum Variabilium
On this chart three divisions or squares may be distinguished as regards the density of the stars. The large square measures one degree in each cc-ordinate, and contains all the bd. Stars (except which is of magnitude). In a smaller square, which is 30' wide and whose centre is the Nova, all stars have been entered which are visible in our twelve-inch refractor with a power of about fifty diameters, while in the central square of only 10' width fainter stars have been added by means of a magnifying power of about 100 diameters. Great difficulty was experienced in seeing and measuring these Objects on account of the brightness of the new star.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.