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Credit & Copyright: Jimmy Walker
Explanation:
The W-shaped ridge of emission featured in
this
vivid skyscape is known as the Cygnus Wall.
Part of a larger
emission
nebula with a distinctive outline popularly called
The North America Nebula,
the cosmic ridge spans about 20 light-years.
Constructed using narrowband data to highlight the telltale
reddish glow from
ionized hydrogen
atoms recombining with electrons, the two frame mosaic image follows an
ionization front with fine details of dark, dusty forms in silhouette.
Sculpted
by energetic radiation from the region's young, hot, massive stars,
the dark shapes inhabiting the view are clouds of cool gas and dust
with stars likely forming within.
The North America Nebula itself, NGC 7000,
is about 1,500 light-years away.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: emission nebula - Cygnus Wall
Publications with words: emission nebula - Cygnus Wall
See also:
- APOD: 2024 May 1 Á IC 1795: The Fishhead Nebula
- APOD: 2024 April 24 Á Dragons Egg Bipolar Emission Nebula
- APOD: 2024 March 13 Á The Seagull Nebula
- APOD: 2024 February 21 Á Seagull Nebula over Pinnacles Peak
- NGC 1893 and the Tadpoles of IC 410
- The Light, the Dark, and the Dusty
- APOD: 2023 December 13 Á Deep Field: The Heart Nebula