Sharpless 140 is an H II region and emission nebula in the Cepheus constellation,[2] 3,000 light years from the Solar System.[1] It is part of the Cepheus bubble.[3] The surface of the nebula's clouds primarily consists of polycyclic aromatic hydrocarbons.[4]

Sh 2-140
Nebula
Sh 2-140 as imaged by the Nicholas U. Mayall Telescope
Observation data: J2000.0[1] epoch
Right ascension22 19 21.46[2]
Declination63° 14' 53.68"[2]
Distance3,000[1] ly   (900[3] pc)
ConstellationCepheus[1]
See also: Lists of nebulae

See also

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References

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  1. ^ a b c d "Stellar Nursery Sharpless 140". www.spitzer.caltech.edu. Retrieved 2024-09-07.
  2. ^ a b c info@noirlab.edu. "Emission Nebula Sh2-140". www.noirlab.edu. Retrieved 2024-09-07.
  3. ^ a b "Sh 2-140". galaxymap.org. Retrieved 2024-09-07.
  4. ^ "APOD: 2004 May 20 - Sharpless 140". apod.nasa.gov. Retrieved 2024-09-07.