Home > Pubblicazioni > Libri Astro > Osservazione > Cambridge University Press > Deep-Sky Companions > Cambridge University Press Libro Deep-Sky Companions: The Secret Deep

• A fresh, new list of 109 deep-sky gazing challenges not previously featured in the Deep-Sky Companions series
• Features many amazing objects, including the flattest galaxy known and the companion star to one of the first black hole candidates ever discovered
• Filled with beautiful photographs and sketches and O'Meara's original finder charts and directions to finding the objects

In this fresh list, Stephen James O'Meara presents 109 new objects for stargazers to observe. The Secret Deep list contains many exceptional objects, including a planetary nebula whose last thermal pulse produced a circumstellar shell similar to the one expected in the final days of our Sun's life; a piece of the only supernova remnant known visible to the unaided eye; the flattest galaxy known; the largest edge-on galaxy in the heavens; the brightest quasar; and the companion star to one of the first black hole candidates ever discovered.

The author Stephen James O'Meara spent much of his early career on the editorial staff of Sky and Telescope before joining Astronomy magazine as its Secret Sky columnist and a contributing editor. An award-winning visual observer, he was the first person to sight Halley's Comet on its return in 1985 and the first to determine visually the rotation period of Uranus.