Complete 1950.0 Skalnate Pleso Atlas of the Heavens A Becvar Star Chart Vintage

Description

Complete 1950.0 Skalnate Pleso Atlas of the Heavens A Becvar Good Condition. Condition is "Used". Shipped with USPS Priority Mail.
All 16 pages are included, there is some yellowing on the title page, but the set is otherwise in fantastic condition, see photos.
From wikipedia:
"The Atlas Coeli covers both hemispheres with 16 charts. The coordinate system is referred to equinox 1950.0 and the scale is 1° = 0.75 cm. There are six charts of the equatorial regions on a rectangular graticule, covering declinations from +25° to -25°; four charts for each hemisphere with straight, converging hour circles and concentric, equally-spaced declination circles covering declinations 20° - 65°; and, for each hemisphere, a circumpolar chart covering declination 65° to the pole. All stars brighter than 7.75 magnitude are included, for a total of 32,571. The stellar magnitudes are indicated by circles with graded sizes. Double and multiple stars are identified and visual binaries are differentiated from spectroscopic binaries. All known variable stars are identified, including novae that had maxima brighter than magnitude 7.75 (totalling 443). 249 star clusters are shown and their relative size indicated. All known globular clusters are shown. 1,130 extragalactic systems are included as are many Galactic objects including planetary nebulae. Bright and dark diffuse nebulae are shown, and the actual outlines of those larger than 10' in diameter are painstakingly drawn. The Milky Way and prominent obscuring clouds within it are indicated by isophotic lines. Constellation boundaries are clearly but unobtrusively drawn. The celestial equator and ecliptic are indicated. The brightest radio sources are also shown.
The Atlas Coeli is famous for its clean appearance and for the wealth of data it contains. The drawing is beautifully and precisely done and the printing is excellent.[1] Many other star charts have been strongly influenced by the style of the Atlas Coeli. For instance, the popular Sky Atlas 2000.0 of Wil Tirion adopted the symbols for various types of objects, the division of scales, and the script directly from the Atlas Coeli.[2]"