Caldwell objects

The Caldwell objects make up a deep sky observing list created by Sir Patrick Moore (1923 – 2012) in 1995. Unlike most observing lists, it is ordered by decreasing declination, rather than increasing right ascension. Due to the inclusion of objects far south of the celestial equator, only the first 80 or so objects are visible from mid-northern latitudes.

Although the 109 objects on the Caldwell list have a large range in difficulty, many of them are among my personal favorites.

NGC 6543 (Cat's Eye Nebula)

The Hubble Space Telescope’s view of the intricate structure of NGC 6543 (Cat’s Eye Nebula), a favorite of Sir Patrick Moore     [Source]


Posts on the Caldwell objects:  (listed by number)

Posts on the Caldwell objects:  (listed by official designation)

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