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NGC 1491

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Emission nebula in the constellation Perseus
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(February 2017)
NGC 1491
Emission nebula
The nebula NGC 1491
Observation data:J2000epoch
SubtypeH II region
Right ascension04h 03m 15.9s[1]
Declination+51° 18′ 54″[1]
Distance3.02 ± 0.6 kpc (9,800 ± 2,000 ly)[1] ly
Apparent dimensions (V)~1½°[2]
ConstellationPerseus
DesignationsCed 25, LBN 704, LBN 706, Sharpless 2-206,[1] Little Pacman Nebula[3]
See also:Lists of nebulae

NGC 1491, also known asLBN 704,SH2-206 or theFossil Footprint Nebula, is anemission typebright nebula located about 9,800 light years away fromEarth in the constellation ofPerseus.[1] It was discovered on 23 December 1790 byWilliam Herschel.

Thenebula gets its deep red coloration due to many massivestars (such asBD+50 866) embedded within NGC 1491 producing large amounts ofultraviolet radiation andionizing thehydrogen gas that makes up thenebula.[4][5]

Gallery

[edit]
  • NGC 1491 from the Mount Lemmon Sky Center
    NGC 1491 from the Mount Lemmon Sky Center
  • Image of a closeup of the central part of NGC 1491 taken by astrophotographer Peter Kennett
    Closeup of NGC 1491 - Peter Kennett

References

[edit]
  1. ^abcde"NGC 1491".SIMBAD.Centre de données astronomiques de Strasbourg. Retrieved21 February 2017.
  2. ^https://www.webbdeepsky.com/picture-of-the-month/archive/2024
  3. ^https://www.deepskycorner.ch/obj/ngc1491.en.php
  4. ^"Emission Nebula NGC 1491".noirlab.edu. Retrieved2023-11-26.
  5. ^"NGC 1491".Stargazers Lounge. 2021-03-08. Retrieved2023-11-26.

External links

[edit]
  • Media related toNGC 1491 at Wikimedia Commons
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