NGC 2174
Encyclopedia
NGC 2174 is an H II emission nebula
Emission nebula
An emission nebula is a cloud of ionized gas emitting light of various colors. The most common source of ionization is high-energy photons emitted from a nearby hot star...

 located in the constellation Orion
Orion (constellation)
Orion, often referred to as The Hunter, is a prominent constellation located on the celestial equator and visible throughout the world. It is one of the most conspicuous, and most recognizable constellations in the night sky...

 and is associated with the open star cluster NGC 2175
NGC 2175
Open Cluster NGC 2175 is an open cluster in the Orion constellation. It was discovered by Giovanni Batista Hodierna before 1654 and independently discovered by Karl Christian Bruhns in 1857. NGC 2175 is at a distance of about 6,350 light years away from Earth.The nebula surrounding it is...

. It is thought to be located about 6,400 light-years away from Earth
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...

. The nebula
Nebula
A nebula is an interstellar cloud of dust, hydrogen gas, helium gas and other ionized gases...

 may have formed through hierarchical collapse.

External links

  • NGC 2174: Emission Nebula in Orion, 2008/6/12 Astronomy Picture of the Day
    Astronomy Picture of the Day
    Astronomy Picture of the Day is a website provided by NASA and Michigan Technological University . According to the website, "Each day a different image or photograph of our universe is featured, along with a brief explanation written by a professional astronomer."The photograph is not necessarily...

  • NGC 2174: Stars Versus Mountains, 2011/2/9 Astronomy Picture of the Day
    Astronomy Picture of the Day
    Astronomy Picture of the Day is a website provided by NASA and Michigan Technological University . According to the website, "Each day a different image or photograph of our universe is featured, along with a brief explanation written by a professional astronomer."The photograph is not necessarily...

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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