Astrophotography - Narrowband
False colors ------- Most of the images here are false colors but are based on the same Hubble color palette using narrowband filters Sii (Sulfer 2), Ha (Hydrogen), and Oiii (Oxygen 3). Although the colors are false it clearly shows Sii as red, Ha as green, and Oiii as blue colors - yellow is a mixer of Sii and Ha.
Taking a closer look at M16 using telescope with a focal lenght of 1625mm,
apertureof 203mm and focal ratio of f/8 compared to previous image which
was taken using telescope with a focal lenght of 770mm, aperture of
110mm and focal ratio of f/7.
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M16 (Eagle) Nebula in narrowband. The Eagle Nebula is estimated to be 7,000 light-years from the Earth. In the sky of Earth, it spans to a dimension of 70 by 55 light years, the famous Pillars of Creation is around 7 light years in height.
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Processed using Ha=Red, Ha+Oiii=Green, Oiii=Blue - SRGB
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Captured using:
Camera: QHY9 mono as main and QHY5 as guide|
Filters: Ha 7nm (17x20min), Oiii 8.5nm (6x20min BIN2)|
Flattner: MPCC|
Captured using IP and PHD for guiding|
Scope: GSO RC8 f/8|
Mount: EQ6 Pro|
Processed: IP v3.82 and PS-C3|
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