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NGC 2022 is a planetary nebula in the equatorial constellation of Orion, located at a distance of 8.21 kilolight-years from the Sun. [3] It was first observed by William Herschel on December 28, 1785, who described it as: considerably bright, nearly round, like a star with a large diameter, like an ill-defined planetary nebula. [7]
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 (abbreviated IC), 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.
Box Nebula: NGC 6309: 1876 6.5 11.5 Ophiuchus: NGC 6326: 1826 11 12.2 Ara: NGC 6563: 1826 5.37 ± 0.06 11 Sagittarius: NGC 6629 1784 13.4 11.3 Sagittarius: Phantom Streak Nebula: NGC 6741: 1882 7 11 Aquila: Little Gem Nebula: NGC 6818: 1787 6 9.3 Sagittarius: Abell 36: 1955 0.78 12.2 ± 2.1 Virgo: Abell 70: 1966 7.8–16 [4] Aquila: Box Nebula ...
The Ring Nebula is located in the lower right of the image Gum Nebula: 809–950 ly (248–291 pc) [32] [33] Emission nebula: Extends about 36° of the sky Bubble Nebula (NGC 6822) 758 ly (232 pc) [34] [35] [36] H II region: The Bubble Nebula is located in the upper left of the image NGC 6188: 600 ly (180 pc) [37] Emission nebula: NGC 592
The following is a list of NGC objects, that is objects listed in the New General Catalogue (NGC). It is one of the largest comprehensive astronomical catalogues for deep sky objects such as star clusters, nebulae, and galaxies. List of NGC objects (1–1000) List of NGC objects (1001–2000) List of NGC objects (2001–3000)
NGC 3132 (also known as the Eight-Burst Nebula, [2] the Southern Ring Nebula, [2] or Caldwell 74) is a bright and extensively studied planetary nebula in the constellation Vela. Its distance from Earth is estimated at 613 pc or 2,000 light-years .
Messier 16, NGC 6611, [1] Sharpless 49, RCW 165, Cr 375, Gum 83, Star Queen Nebula See also: Lists of nebulae The Eagle Nebula (catalogued as Messier 16 or M16 , and as NGC 6611 , and also known as the Star Queen Nebula ) is a young open cluster of stars in the constellation Serpens , discovered by Jean-Philippe de Cheseaux in 1745–46.
The nebula may have formed through hierarchical collapse. [3] There is some equivocation in the use of the identifiers NGC 2174 and NGC 2175. These may apply to the entire nebula, to its brightest knot, or to the star cluster it includes. Burnham's Celestial Handbook lists the entire nebula as 2174/2175 and does not mention the star cluster. [4]