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Now with removable planisphere! Starfinder lays out the universe clearly, highlighting the signposts in the sky and explaining the cosmology of the stars. Discover the wonders of the night sky with up-to-date information about the universe, including monthly charts to both the northern and southern hemisphere, and a section on observing the Moon, planets, and other bodies of the solar system.
This unique Star Finder is designed for nighttime, outdoor uses and daytime study. the major stars are printed in luminous ink which glows in the dark.

NASA EP.

United States. National Aeronautics and Space Administration

Published: 1968

Total Pages: 452


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No part of the Hertzsprung-Russell diagram shows a more pronounced diversity of stellar types than the upper part, which contains the most luminous stars. Can one visualize a larger difference than between a luminous, young and extremely hot Of star, and a cool, evolved pulsating giant of the Mira type, or an S-type supergiant, or - again at the other side of the diagram - the compact nucleus of a planetary nebula? But there is order and unity in this apparent disorder! Virtually all types of bright stars are evolutionally related, in one way or the other. Evolution links bright stars. In many cases the evolution is speeded up by, or at least intimately related to various signs of stellar instability. Bright stars lose mass, either continuously or in dramatic sudden events, they vibrate or pulsate - and with these tenuous, gigantic objects this often happens in a most bizarre fashion. Sometimes the evolution goes so fast that fundamental changes are observable in the time span of a human's life - several of such cases have now been identified.
Published by the Boy Scouts of America for all BSA registered adult volunteers and professionals, Scouting magazine offers editorial content that is a mixture of information, instruction, and inspiration, designed to strengthen readers' abilities to better perform their leadership roles in Scouting and also to assist them as parents in strengthening families.
This astronomical atlas features not only conventional star and galaxy maps, but also spectacular three-dimensional stereographs (glasses provided). The book contains three sets of comprehensive full-sky maps that cover local space, regional space, and distant space -- with over 20,000 galaxies. All the stereographs have been derived from the most accurate data available, including results from the Hipparcos satellite, and can be used to measure the approximate distances between the objects depicted. The distant space maps represent one of the most complete mappings of the galaxies available to amateur astronomers, and their accompanying three-dimensional views provide tantalising glimpses of structure at the largest scale of the universe.
Published by the Boy Scouts of America for all BSA registered adult volunteers and professionals, Scouting magazine offers editorial content that is a mixture of information, instruction, and inspiration, designed to strengthen readers' abilities to better perform their leadership roles in Scouting and also to assist them as parents in strengthening families.
Stellar evolution - the birth, development and death of stars - is central to our current understanding of astronomy, but surprisingly the majority of amateur astronomers lack a full understanding of the physics of stars. Current books on the market tend to be highly theoretical and off-putting, in Observer's Guide to Stellar Evolution, Mike Inglis brings this subject to life in a unique way. By combining a step-by-step introduction with suggestions for practical observations of stars at different stages in their evolution, amateur astronomers regardless of their current level of knowledge, will find this book fascinating and informative. -Accessible to every amateur astronomer, regardless of background knowledge. -Step-by-step introduction to the theory of stellar evolution. -Includes many examples of stars at different stages in their evolution, that the reader can observe for him/herself. -Mathematics is made accessible by being presented in 'boxes'that readers can skip over if they prefer!