The New General Catalogue of Nebulae and Clusters of Stars is an astronomical catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888. The NGC contains 7,840 objects, including galaxies, star clusters and emission nebulae. Dreyer published two supplements to the NGC in 1895 and 1908, known as the Index Catalogues, describing a further 5,386 astronomical objects. Thousands of these objects are best known by their NGC or IC numbers, which remain in widespread use.
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.
NGC 7662 is a planetary nebula located in the northern constellation Andromeda. It is known as the Blue Snowball Nebula, Snowball Nebula, and Caldwell 22. This nebula was discovered October 6, 1784 by the German-born English astronomer William Herschel. In the New General Catalogue it is described as a "magnificent planetary or annular nebula, very bright, pretty small in angular size, round, blue, variable nucleus". The object has an apparent visual magnitude of 8.3 and spans an angular size of 32″ × 28″. Parallax measurements give a distance estimate of 5,730 ± 340 ly (1,757 ± 103 pc).
NGC 156 is a double star located in the Cetus constellation. It was discovered on 1882 by Ernst Wilhelm Leberecht Tempel.
NGC 220 is an open cluster located approximately 210,000 light-years from the Sun in the Small Magellanic Cloud. It is located in the constellation Tucana. It was discovered on August 12, 1834 by John Herschel.
NGC 222 is an open cluster located approximately 210,000 light-years from the Sun in the Small Magellanic Cloud. It is located in the constellation Tucana. It was discovered on August 1, 1826 by James Dunlop.
NGC 276 is a barred spiral galaxy located approximately 626 million light-years from the Solar System in the constellation Cetus. It was discovered in 1886 by Frank Muller and was later also observed by DeLisle Stewart.
NGC 302 is a magnitude 16.6 star located in the constellation Cetus. It was recorded in 1886 by Frank Muller.
NGC 313 is a triple star located in the constellation Pisces. It was discovered on November 29, 1850 by Bindon Stoney.
NGC 327 is a spiral galaxy in the constellation Cetus. Also known as "The Jamie Smith Star" (ISD0534203) and was discovered on September 27, 1864 by Albert Marth. It is described by Dreyer as "faint, small, extended." It is nearby galaxies NGC 329, NGC 325 and NGC 321.
NGC 331 is a barred spiral galaxy in the constellation Cetus. It was discovered in 1886 by Francis Leavenworth. It was described by Dreyer as "extremely faint, very small, round, a little brighter middle, 12th magnitude star 3 arcmin northeast." There are two candidates as to which object is NGC 331: PGC 2759 or PGC 3406, with the former being a much more likely candidate than the latter.
NGC 343 are a pair of interacting galaxies in the constellation Cetus. It was discovered in 1886 by Frank Muller. It was described by Dreyer as "extremely faint, very small, irregularly round, suddenly brighter middle and nucleus ."
NGC 354 is a barred spiral galaxy in the constellation Pisces. It was discovered on October 24, 1881 by Édouard Stephan. It was described by Dreyer as "very faint, very small, round, very small (faint) star involved, 14th magnitude star close to west."
NGC 357 is a barred lenticular or spiral galaxy in the constellation Cetus. It was discovered on September 10, 1785, by William Herschel. It was described by Dreyer as "faint, small, irregularly round, suddenly brighter middle, 14th magnitude star 20 arcsec to northeast."
NGC 361 is an open cluster in the Small Magellanic Cloud. It is located in the constellation Tucana. It was discovered on September 6, 1826, by James Dunlop. It was described by Dreyer as "very very faint, pretty large, very little extended, very gradually brighter middle." At an aperture of 31.0 arcseconds, its apparent V-band magnitude is 12.24, but at this wavelength, it has 0.40 magnitudes of interstellar extinction.
NGC 389 is a lenticular galaxy located approximately 239 million light-years from the Solar System in the constellation Andromeda. It was discovered on September 6, 1885 by Lewis Swift. It was described by Dreyer as "extremely faint, extremely small, round, star near."
NGC 408 is a star located in the constellation Pisces. It was discovered on October 22, 1867, by Herman Schultz. It was described by Dreyer as "very faint, very small, (WH) II 220 eight seconds of time to east.", WH II 220 being NGC 410.
NGC 409 is an elliptical galaxy located in the constellation Sculptor. It was discovered on November 29, 1837 by John Herschel. It was described by Dreyer as "extremely faint, small, round, very small (faint) star near."
NGC 442 is a spiral galaxy of type S0/a? located in the constellation Cetus. Lewis Swift discovered it on October 21, 1886. Dreyer first described it as "very faint, small, round, bright star to southeast." The star is actually located northeast of NGC 442, but, due to the way optical telescopes worked, it was not unusual for some confusion of directions to occur.
