Observing Handbook and Catalogue of Deep-Sky Objects
Christian B. Luginbuhl
Format: PDF / Kindle (mobi) / ePub
This is the most detailed guide to observing galaxies, clusters and nebulae available in a single volume. The objects included range from those visible in binoculars to faint galaxies requiring a 30 cm telescope. For most objects descriptions are given for a range of telescope apertures; the catalogue contains data not available elsewhere.