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Showpieces of Class I

Part of the Astronomers' Observing Guides book series (OBSERVING)

Listed below in alphabetical order by constellation are 57 of the most interesting objects in Herschel’s Class I. Following the Herschel designation itself is the corresponding NGC number in parentheses, its Right Ascension and Declination (for Epoch 2000.0), the object’s actual type (which may differ from the Class Herschel assigned it to), its visual magnitude, angular size in minutes ( ) or seconds ( ) of arc, and Messier or Caldwell number plus popular name if any. Next is a translation of Sir William’s shorthand description (in italicized quotes) taken from the NGC itself, followed by comments from the author. These include directions for finding each object by sweeping for it, just as Herschel himself originally did.

Keywords

Globular Cluster Spiral Galaxy Elliptical Galaxy Large Aperture Planetary Nebula 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2007

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