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Most emission nebulae are about 90% hydrogen, with the remaining helium, oxygen, nitrogen, and other elements. Some of the most prominent emission nebulae visible from the northern celestial hemisphere are the North America Nebula (NGC 7000) and Veil Nebula NGC 6960/6992 in Cygnus , while in the south celestial hemisphere, the Lagoon Nebula M8 ...
NGC 2032 (also known as ESO 56-EN160 and the Seagull Nebula) is an emission nebula in the Dorado constellation and near the supershell LMC-4 [2] and it consists of NGC 2029, NGC 2035 and NGC 2040. It was first discovered by James Dunlop on 27 September 1826, and John Herschel rerecorded it on 2 November 1834. [ 3 ]
Articles about emission nebulae in the parent category should be moved to this subcategory. Wikimedia Commons has media related to Emission nebulae . The main article for this category is Emission nebula .
NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way's Perseus Spiral Arm. This 20×30 arcmin sized nebulosity is also associated with open cluster IC 1590 , several Bok globules and the multiple star, B 1.
NGC 248 is an emission nebula in the constellation Tucana. It is in the Small Magellanic Cloud. [3] It was discovered in 1834 by the astronomer John Frederick William Herschel. NGC 248 is about 60 light-years long and 20 light-years wide. [citation needed]
LHA 120-N 55 or N55 is an emission nebula located within the Large Magellanic Cloud (LMC). N55 is situated inside a superbubble called LMC 4. It is a glowing clump of gas and dust that gets its light output from the hydrogen atoms shedding electrons within it. [3] It was named in 1956, in a catalogue of H-alpha emission line objects in the LMC. [4]
The nebula RCW 34 is relatively dark. However, when observed using infrared wavelengths, two different areas are visible - one half of the nebula is bright, and the other is dark. The bright side is the hydrogen illuminated by a nearby blue supergiant star , and dark is the place where new stars surround the central star on the other side.
NGC 1935 (also known as ESO 56-EN110 and IC 2126) is an emission nebula which is part of the larger LMC-N44 nebula in the Dorado constellation. NGC 1935 is also located in the Large Magellanic Cloud.