NGC 1491
| 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 | 9,800 ± 2,000 ly (3.02 ± 0.6 kpc)[1] ly |
| Apparent magnitude (V) | 8.5[2] |
| Apparent dimensions (V) | 6′ × 9′[2] |
| Constellation | Perseus[2] |
| Designations | Ced 25, LBN 704, LBN 706, Sharpless 2-206,[1] Little Pacman Nebula [3] |
NGC 1491 is an emission type bright nebula in the northern constellation of Perseus.[2] Alternatively, it is known as LBN 704, SH2-206, or the Fossil Footprint Nebula. It was discovered on 23 December 1790 by William Herschel. The nebula is located at a distance of about 9,800 light years from Earth[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.[4][5]
Gallery
NGC 1491 from the Mount Lemmon Sky Center
Closeup of NGC 1491 - Peter Kennett
References
- 1 2 3 4 5 "NGC 1491". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 21 February 2017.
- 1 2 3 4 Finlay, Warren H. (2014). Concise Catalogue of Deep-Sky Objects. The Patrick Moore Practical Astronomy Series (2nd ed.). Springer Cham. p. 175. doi:10.1007/978-3-319-03170-5. ISBN 978-3-319-03169-9.
- ↑ "Little Pacman (NGC 1491) | Deep⋆Sky Corner". www.deepskycorner.ch. Retrieved 2026-08-10.
- ↑ "Emission Nebula NGC 1491". noirlab.edu. Retrieved 2023-11-26.
- ↑ "NGC 1491". Stargazers Lounge. 2021-03-08. Retrieved 2023-11-26.
External links
Media related to NGC 1491 at Wikimedia Commons
