IC 1318
| Emission nebula | |
|---|---|
| IC 1318
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| The area around IC 1318 (north is on the left, east on top); in the image center Gamma Cygni, below left the sickle-shaped emission nebula NGC 6888 . | |
| AladinLite | |
| Constellation | swan |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 20 h 22 m 13.7 s |
| declination | + 40 ° 15 ′ 24 ″ |
| Appearance
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| Angular expansion | 50 '× 30' |
| Ionizing source | |
| designation | HD 194093 |
| Physical data
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| distance | 1500 ly |
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history
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| discovery | Edward Barnard |
| Date of discovery | August 1893 |
| Catalog names | |
| IC 1318 • LBN 245 | |
IC 1318 , also known as the γ-Cygni Nebula ( Gamma-Cygni Nebula ) or Butterfly Nebula , is an emission nebula and H-II region in the constellation Swan . The nebula is located approximately 4,900 light years from Earth and has an extent of 100 light years. In the center of the nebula lies the star Sadr , at a distance of 1,500 light years. IC 1318 is divided into three parts, IC 1318 A, IC 1318 B and IC 1318 C, which differ from one another. IC 1318 B and IC 1318 C are separated by the 20 light-year wide dark cloud LDN 889 .
Web links
Commons : IC 1318 - Collection of Images, Videos and Audio Files
Individual evidence
- ↑ NASA / IPAC EXTRAGALACTIC DATABASE
- ↑ Seligman
- ↑ a b c Star Formation in the Heart of the Swan. NASA , accessed September 13, 2012 .
- ↑ a b c IC 1318. robgendlerastropics.com, accessed on September 13, 2012 (English).
Attention: The sorting key “IC 1318” overwrites the previously used key “IC1318”.