The Cocoon Nebula IC 5146: Three Views
IC 5146, commonly known as the Cocoon Nebula, glows red due to hydrogen gas being illuminated by the young interior stars. It is about 4,000 light years away and about 15 light years across. Informally known as the 'little Trifid Nebula' and the 'Cocoon Nebula', Sh2-82 is a relatively small emission nebula (seen as red) surrounded by a blue reflection nebula. A long dust lane runs diagonally through the image, blocking the light of most of the stars behind it.
Image 1 Credit: KPNO/NOIRLab/NSF/AURA/Adam Block
Image 1 Info: This image was taken as part of Advanced Observing Program (AOP) program at Kitt Peak Visitor Center in 2014.
Release Date: June 7, 2014
Image 2 Credit: T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOIRLab/NSF/AURA)
Image 2 Info: This image was obtained with the wide-field view of the Mosaic camera on the Mayall 4-meter telescope at Kitt Peak National Observatory. The image was generated with observations in B (blue), V (green), I (orange) and Hydrogen-Alpha (red) filters. In this image, North is right, East is up.
Release Date: June 30, 2020
Image 3 Credit: Uwe Kamin
Image 3 Info: Montage HaR VO3B, 70 R V et B de 3 minutes, 65 Ha et, 35 O3 de 5 minutes
Exposition totale: 18H50
Lunette Askar FRA 600
Réducteur 0.79
Focale 420mm à F3.9
Imageur ZWO ASI2600MM Pro
Roue à Filtre ZWO 7*36MM
Filtre Baader L, R, V, B ,S2, Ha et O3
Monture EQ6 Pro
Guidescope UltraGuide MKII 60mm ARTESKY
Camera Guidage ASI ZWO 224MC
Sky Quality 19.95
Magnitude CLASS 5 Bortle
Image Date: July 16, 2023
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