The Caldwell catalogue is an astronomical catalogue of 109 star clusters, nebulae, and galaxies for observation by amateur astronomers. The list was compiled by Patrick Moore as a complement to the Messier catalogue.
While the Messier catalogue is used by amateur astronomers as a list of deep-sky objects for observation, Moore noted that Messier's list was not compiled for that purpose and excluded many of the sky's brightest deep-sky objects, such as the Hyades, the Double Cluster (NGC 869 and NGC 884), and the Sculptor Galaxy (NGC 253). The Messier catalogue was actually compiled as a list of known objects that might be confused with comets. Moore also observed that since Messier compiled his list from observations in Paris, it did not include bright deep-sky objects visible in the Southern Hemisphere, such as Omega Centauri, Centaurus A, the Jewel Box, and 47 Tucanae. Moore compiled a list of 109 objects to match the commonly accepted number of Messier objects (he excluded M110), and the list was published in Sky & Telescope in December 1995.
https://en.wikipedia.org/wiki/Caldwell_catalogue
28 open clusters, 18 globular clusters, 13 planetary nebulae, 12 bright nebulae, 1 dark nebula, and 37 galaxies
While the Messier catalogue is used by amateur astronomers as a list of deep-sky objects for observation, Moore noted that Messier's list was not compiled for that purpose and excluded many of the sky's brightest deep-sky objects, such as the Hyades, the Double Cluster (NGC 869 and NGC 884), and the Sculptor Galaxy (NGC 253). The Messier catalogue was actually compiled as a list of known objects that might be confused with comets. Moore also observed that since Messier compiled his list from observations in Paris, it did not include bright deep-sky objects visible in the Southern Hemisphere, such as Omega Centauri, Centaurus A, the Jewel Box, and 47 Tucanae. Moore compiled a list of 109 objects to match the commonly accepted number of Messier objects (he excluded M110), and the list was published in Sky & Telescope in December 1995.
https://en.wikipedia.org/wiki/Caldwell_catalogue
28 open clusters, 18 globular clusters, 13 planetary nebulae, 12 bright nebulae, 1 dark nebula, and 37 galaxies
Thank you to all our member contributions, see the details at the bottom of the page. Send contributions to: [email protected]
C1
NGC 188 Polarissima Cluster Open Cluster 4.8 ly Cepheus |
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C2
NGC 40 Bow-Tie Nebula Planetary Nebula 3.5 ly Cepheus |
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C3
NGC 4236 Barred Spiral Galaxy 7,000 ly Draco |
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C4
NGC 7023 Iris Nebula Open Cluster & Nebula 1.4 ly Cepheus |
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C5
IC 342 Hidden Galaxy Spiral Galaxy 10,000 ly Camelopardalis |
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C6
NGC 6543 Cat's Eye Nebula Planetary Nebula 3 ly Draco |
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C7
NGC 2403 Spiral Galaxy 14,000 ly Camelopardalis |
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C8
NGC 559 Open Cluster 3.7 ly Cassiopeia |
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C9
Sh2-155 Cave Nebula Nebula 2.8 ly Cepheus |
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