Turn Left at Orion: A Hundred Night Sky Objects to See in a Small Telescope - and How to Find ThemCambridge University Press, 19 de out. de 2000 A guidebook for beginning amateur astronomers, Turn Left at Orion provides all the information you need to observe the Moon, the planets and a whole host of celestial objects. Large format diagrams show these objects exactly as they appear in a small telescope and for each object there is information on the current state of our astronomical knowledge. Revised and updated, this new edition contains a chapter describing spectacular deep sky objects visible from the southern hemisphere, and tips on observing the upcoming transits of Venus. It also includes a discussion of Dobsonian telescopes, with hints on using personal computers and the internet as aids for planning an observing session. Unlike many guides to the night sky, this book is specifically written for observers using small telescopes. Clear and easy-to-use, this fascinating book will appeal to skywatchers of all ages and backgrounds. No previous knowledge of astronomy is needed. |
Conteúdo
| 6 | |
The Planets | 26 |
Winter | 38 |
Spring | 72 |
Autumn | 152 |
Southern Hemisphere Objects | 180 |
How to Run a Telescope | 202 |
Where Do You Go From Here? | 210 |
| 220 | |
Termos e frases comuns
Acrux Albireo Alkalurops Alpha Altair Andromeda Antares arc seconds Arcturus astronomers averted vision Beta Boötes bright stars brighter brightest star Cancri Cassiopeia Centauri companion constellation Cor Caroli crater Cygni dark low Dark skies Dark skies Eyepiece Deneb diameter disk double star Earth east eclipse edge Eyepiece faint stars fainter field of view fifth magnitude finder finderscope Finderscope View Full Moon galaxy Gamma globular cluster halfway high power horizon individual stars Jupiter lens Location Primary Star look lota Low power Best magnification magnitude star Mars medium power Milky million naked eye night northwest objects observing open cluster orbit Orion pair planet Planetary Nebula Polaris power Best Seen red giants roughly Sagittarius 18 Scorpii shadow Sirius Sky Conditions small telescope southeast southern southwest star called Star Magnitude Color steady high Struve Summer Triangle telescope three stars variable star Vega Venus visible Zeta
Passagens mais conhecidas
Página 10 - Thus a star of the first magnitude is about 2!/:> times brighter than a second magnitude star, which is about 21/: times brighter than a third magnitude star, and so forth.
Referências a este livro
Nicolaus Copernicus: Making the Earth a Planet Owen Gingerich,James MacLachlan Visualização parcial - 2005 |