| Emission nebula | |
|---|---|
| H II region | |
 Left (blue) NGC 2020 and right (red) NGC 2014, photo by Hubble Space Telescope | |
| Observation data: J2000 epoch | |
| Right ascension | 05h 44m 12.7s |
| Declination | −67° 42′ 57″ |
| Constellation | Dorado |
| Designations | GC 1223, ESO 56-148[1] |
NGC 2020 is an blue HII Region surrounding the Wolf-Rayet star BAT99-59.[2] It is located in the Large Magellanic Cloud 163,000 light years away from earth.[3] The bubble cavity in NGC 2020 was formed by stellar winds pushing gas from the center. The blue coloration of NGC 2020 is caused by ionized oxygen which was ionized by BAT99-59.[4]
The nebula was discovered on 30 December 1836 by John Herschel.[5] Together with NGC 2014 it makes up what is called the "Cosmic Reef" .[6] The name Cosmic Reef was used for the image the Hubble Space Telescope took for its 30th anniversary.
References
- ↑ SEDS: NGC 2020
- ↑ Y.-H. Chu, K. Weis, D. R. Garnett (1999), "Physical Structure of Small Wolf-Rayet Ring Nebulae", The Astronomical Journal (in German), vol. 117, no. 3, pp. 1433–1440, arXiv:astro-ph/9812076, Bibcode:1999AJ....117.1433C, doi:10.1086/300777, S2CID 30767486
{{citation}}: CS1 maint: date and year (link) CS1 maint: multiple names: authors list (link) - ↑ Cowing, Keith (2022-09-07). "Tapestry Of Blazing Star Birth: NGC 2014 And NGC 2020". SpaceRef. Retrieved 2023-11-25.
- ↑ "Hanson Astronomy Photos-NGC 2020". Hanson Astronomy Photos. Retrieved 2023-11-25.
- ↑ Seligman
- ↑ "Cosmic Reef". HubbleSite.org. Retrieved 2020-04-26.
External links
Media related to NGC 2020 at Wikimedia Commons
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