Digel Cloud 2S

Digel Cloud 2S
Nebula
Star-forming region
Digel Cloud 2S imaged by James Webb Space Telescope
Observation data: J2000.0 epoch
Right ascension02h 48m 28.45s[1]
Declination+58° 23′ 29.72″[1]
Distance40,000[1] ly
ConstellationPerseus
DesignationsDigel Cloud 2S, [YKT2006b] Cloud2-S[2]

Digel Cloud 2S is a prominent star-forming region within the molecular cloud complex known as Digel Cloud 2, located in the Extreme Outer Galaxy region of the Milky Way. This region lies more than 58,000 light-years from the Galactic Center, placing it in one of the most distant and metal-poor parts of our galaxy.[3][1][4][5]

Observation

The Digel Clouds (1A, 1B, 2N & 2S) were first identified in molecular surveys in the 1990s, with subsequent studies confirming star formation activity in the Extreme Outer Galaxy. Detailed infrared imaging of Digel Cloud 2S came from NASA's James Webb Space Telescope (JWST) in 2024 by a team led by astronomers including Natsuko Izumi used JWST's Near-Infrared Camera (NIRCam) and Mid-Infrared Instrument (MIRI)[6] to capture near and midinfrared light, revealing unprecedented detail invisible to optical telescopes.[7][8]

References

  1. 1 2 3 4 "Digel Cloud 2S - NASA Science". 2024-09-12. Retrieved 2026-01-11.
  2. ↑ "[YKT2006b] Cloud2-S". simbad.cds.unistra.fr. Retrieved 2025-12-19.
  3. ↑ "NASA's Webb Peers into the Extreme Outer Galaxy - NASA Science". 2024-09-12. Retrieved 2026-01-18.
  4. ↑ Robert Lea (2024-09-16). "James Webb Telescope goes 'extreme' and spots baby stars at the edge of the Milky Way (image)". Space. Retrieved 2026-01-11.
  5. ↑ Yasui, Chikako; Kobayashi, Naoto; Tokunaga, Alan T.; Terada, Hiroshi; Saito, Masao (March 2008). "Star Formation in the Extreme Outer Galaxy: Digel Cloud 2 Clusters". The Astrophysical Journal. 675 (1): 443–453. arXiv:0711.0257. Bibcode:2008ApJ...675..443Y. doi:10.1086/524356. ISSN 0004-637X.
  6. ↑ Izumi, Natsuko; Kobayashi, Naoto; Yasui, Chikako; Tokunaga, Alan T.; Saito, Masao; Hamano, Satoshi (2014-10-14). "Discovery of Star Formation in the Extreme Outer Galaxy Possibly Induced by a High-Velocity Cloud Impact". The Astrophysical Journal. 795 (1): 66. arXiv:1411.7290. Bibcode:2014ApJ...795...66I. doi:10.1088/0004-637X/795/1/66. ISSN 1538-4357.
  7. ↑ Harris, Richard (2024-12-27). "Digel Cloud 2S examined by NASAs JWST". ScopeTrader. Retrieved 2026-01-18.
  8. ↑ "Webb peers into the Extreme Outer Galaxy". www.esa.int. Retrieved 2026-01-18.
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