B.A.A. Star Charts (Envelope With Charts)

Hillside, NJ: Enslow Pub Inc, 1983. Map. Very Fine. Folio 12 - 15'' tall. Map. Condition: Very Fine. Enslow Pub Inc, Hillside, NJ 1983. 5 maps. Nice Firm Clean copy ! Size: Folio 12 - 15'' tall. For collectors, the complete maps set of very first Wil Tirion works. The British Astronomical Association, one of the world's leading organizations of amateur astronomers, has commissioned Wil Tirion to prepare this set of five charts showing the entire sky. Two charts cover the polar areas and three cover the equatorial regions. Each sheet is approximately 18'' x 13'' and is printed black-on-white on a good grade of paper, suitable for notes. The charts can be used for plotting meteor trails, cometary paths, and deep-sky objects currently in the news. The charts show all stars down to and including magnitude 6.5. Special symbols are used for double stars and variable stars. Also included are open clusters, globular clusters, planetary nebulae, diffuse nebulae, and galaxies. Isophotes of the Milky Way, constellation boundaries, and the ecliptic also are indicated. Galactic longitude is marked off every 10 degrees along the galactic equator, and the north and south galactic poles are noted. Gradations are 5 minutes in right ascension and 1 degree in declination. Epoch 1950.0 has been chosen to be compatible with most atlases and catalogs presently in use. Names of bright stars as well as Bayer, Messier, NGC, and IC designations are given to make identification easy. This convenient set of detailed charts has the advantage of showing fairly large areas of sky at a reasonable scale. It is easily carried for handy field-work reference. These star charts can be used by amateur astronomers for telescope and binocular viewing and by naked-eye observers who want a clear representation of the sky. Science/Nature::Astronomy Maps 6486L 6486L