⭐ NGC 7023: The Iris Nebula and Cosmic Dust

The Iris Nebula  «  Back to Gallery  »  NGC7635: The Bubble Nebula in Red   🛒 Purchase prints of this image.

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The Iris Nebula is a beautiful reflection nebula lit from behind by a bright star. Although the beautiful blue core is easily visible even with regular camera lenses, it takes dark skies and long exposures to bring out the subtle ripples of dust that appear to expand from the center.
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Telescope:   Celestron EdgeHD 9.25
Length:   1645mm
Aperture:   235mm
F-stop:   f/7.0
Sessions:   1
Captured:   2022-07-21 to 2022-07-21
Lights:   64
Exposure:   180
Total exposure:   3 h
Ra:   21h 1m 40.0s
Dec:   +68° 10' 12.966
Size:   37.972 x 26.435 arcmin
Radius:   0.386 deg
Scale:   0.285 arcsec/pixel