 | This article relies largely or entirely on a single source. (February 2017) |
| Emission nebula | |
|---|---|
 The nebula NGC 1491 | |
| Observation data: J2000 epoch | |
| Subtype | H II region |
| Right ascension | 04h 03m 15.9s[1] |
| Declination | +51° 18′ 54″[1] |
| Distance | 3.02 ± 0.6 kpc (9,800 ± 2,000 ly)[1] ly |
| Constellation | Perseus |
| Designations | Ced 25, LBN 704, LBN 706, Sharpless 2-206[1] |
NGC 1491, also known as LBN 704, SH2-206 or the Fossil Footprint Nebula, is an emission type bright nebula located about 9,800 light years away from Earth in the constellation of Perseus.[1] The nebula gets its deep red coloration due to many massive stars (such as BD+50 866) embedded within NGC 1491 producing large amounts of ultraviolet radiation and ionizing the hydrogen gas that makes up the nebula.[2][3]
- ^ a b c d e "NGC 1491". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 21 February 2017.
- ^ "Emission Nebula NGC 1491". noirlab.edu. Retrieved 2023-11-26.
- ^ "NGC 1491". Stargazers Lounge. 2021-03-08. Retrieved 2023-11-26.