emission nebula


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Related to emission nebula: planetary nebula, Reflection nebula

emission nebula

n.
A nebula that absorbs ultraviolet radiation from stars and reemits it in the visible, infrared, and radio parts of the electromagnetic spectrum.

emission nebula

n
(Astronomy) a type of nebula that emits visible radiation. See nebula
References in periodicals archive ?
The nebula also significantly varies in brightness and orientation from the star, and an emission nebula surrounding the star is also sometimes detectable.
NGC 7635, also called the Bubble Nebula, Sharpless 162, or Caldwell 11, is a H II region[1] emission nebula in the constellation Cassiopeia.
NGC 2035 is an HII region, or emission nebula, consisting of clouds of gas that glow due to the energetic radiation given off by young stars.
0) Red Rectangle Reflecting 06h 19m 8 -10[degrees]38 HD 44179 Nebula NGC 2237/8/9 Emission Nebula 06 32 3 +05 03 NGC 2244 Open Cluster 06 32 3 +04 51 NGC2251 Open Cluster 06 34 7 +08 23 NGC 2252 Open Cluster 06 35 0 +05 23 NGC 2261 Reflecting Neb 06 39 2 +08 44 NGC 2264 Emission Nebula/ 06 41 1 +09 53 Open Cluster NGC 2323 Open Cluster 07 03 2 -08 20 NGC 2346 Planetary Nebula 07 09 2 -00 48 COCD 1034 Multiple Star group 07 10 5 +06 04 NGC 2353 Open Cluster 07 14 6 -10 18 Moni 5 Asterism 07 18 4 +06 18 Streicher 20 Asterism 07 43 7 +04 50 NGC 2538 Galaxy 08 11 4 +03 37 Object Mag.
M17 is an emission nebula (Andrew's drawing was made using a UHC filter) and nebula filters can help in seeing fine detail, particularly if your site is at all light polluted.
A prime example of an emission nebula, M42 is a vast cloud of hydrogen heated to incandescence by the hot, young stars lying inside it.
Within this constellation is M8, the Lagoon nebula,another example of an emission nebula like M42.
The NGC 3324 is an emission nebula with an open star cluster and is located at a distance of about 7,500 light years from Earth.
0) Dec NGC 1711 Open Cluster 04 (h) 50 (m) 6 -69[degrees]50' NGC 1737 Emission Nebula 04 54 0 -69 10 NGC 1743 Diffuse Nebula 04 54 5 -69 12 NGC 1782 Open Cluster/Neb 04 57 8 -69 23 NGC 1809 Galaxy 05 02 5 -69 34 NGC 1854 Globular Cluster 05 09 3 -68 51 NGC 1910 Open Cluster 05 18 7 -69 14 NGC 2070 Bright Nebula 05 38 6 -69 06 NGC 2074 Bright Nebula 05 39 3 -69 30 NGC 2100 Open Cluster 05 42 2 -69 13 Object Type Mag.
One of these is the emission nebula NGC 6888, commonly known as the Crescent Nebula.
The south component (the actual Trifid) is a tri-lobed emission nebula illuminated by a 7th-magnitude triple star.

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