Pelican Nebula
| Pelican Nebula | |
|---|---|
 Pelican Nebula (IC5070 and IC5067) |
|
| Observation data: J2000.0 epoch | |
| Type | Emission |
| Right ascension | 20h 50m 48.0s |
| Declination | +44° 20′ 60.0" |
| Distance | 1,800 ly |
| Apparent magnitude (V) | 8.0 |
| Apparent dimensions (V) | 60' x 50' |
| Constellation | Cygnus |
| Physical characteristics | |
| Radius | - |
| Absolute magnitude (V) | - |
| Notable features | - |
| Other designations | IC5070 and IC5067, Sharpless 117 |
| See also: Diffuse nebula, Lists of nebulae | |
The Pelican Nebula (also known as IC5070 and IC5067[1]) is an H II region associated with the North America Nebula in the constellation Cygnus. The gaseous contortions of this emission nebula bear a resemblance to a pelican, giving rise to its name[1]. The Pelican Nebula is located nearby first magnitude star Deneb, and is divided from its more prominent neighbour, the North America Nebula, by a molecular cloud filled with dark dust.
The Pelican is much studied because it has a particularly active mix of star formation and evolving gas clouds. The light from young energetic stars is slowly transforming cold gas to hot and causing an ionization front gradually to advance outward. Particularly dense filaments of cold gas are seen to still remain, and among these are found two jets emitted from the Herbig–Haro object 555.[1] Millions of years from now this nebula might no longer be known as the Pelican, as the balance and placement of stars and gas will leave something that appears completely different.
[edit] See also
[edit] References
- ^ a b c Nemiroff, Robert; Jerry Bonnell (2011 November 26). "Astronomy Picture of the Day - Pelican Nebula Close-up". http://apod.nasa.gov/apod/astropix.html. Retrieved 26 November 2011. "designated IC 5067"
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This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (December 2007) |
[edit] External links
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Wikimedia Commons has media related to: Pelican Nebula |
- APOD Pictures:
