Wednesday, January 31, 2018

Horsehead and Flame Nebula in HaRGB

I'm done playing with the Horsehead for now.  I am a little dissatisfied with the image in particular with the coarseness of the Ha data (see previous post: link).  As others have stated, Ha-filters on a DSLR collect only on the red channel so you have collect 4 times the amount than you would using a monochrome camera so this may be a reason for the coarseness.  On the other hand, it did bring out more detail than I ever could with just the RGB and for that I am pleased.  That being said here is my final image along with some others:

Final HaRGB - I like this the best

HaRGB - with addition of the HaR Channel Boost - I did not like this 

RGB - no Ha Data - OK

Horsehead Nebula IC 434 and Flame Nebula NGC 2024
Location: Home Monroe, CT
Date: 12-30-17(Ha), 1-2-18 (Ha), 1-13-18 (RGB), 1-14-18 (RGB), 1-20-18 (RGB), 1-24-18 (Ha)
Camera: Canon EOS Rebel T3i(a), Backyard EOS
Telescope: Orion ED80 80mm f/7.5 Apochromatic Refractor Telescope
Barlow: None
Focal Length: 600mm
f/7.5
Focal Reducer: Orion 0.8x Focal Reducer for Refractor Telescopes
Mount: Orion Sirius EQ
Filter: Astrodon UV/IR, Astronomik Ha Clip-filter, Baader Neodymium Skyglow 2"
Autoguiding: QHY-5L-II-M attached to an Agena 50mm Guide Scope with Helical Focuser
Exposure: 30 x 150s (Ha), 30 x 150s (Ha), 78 x 120 (RGB), 20 x 120 (RGB), 32 x 120 (RGB), 80 x 150s (Ha)
ISO: 1600
Temp: -12 C, -10 C, -15 C, -10 C, -5 C, 0 C
Post Processing: Deep Sky Stacker, Photoshop, Astronomy Tools, Lightroom.
https://kurtzeppetello.smugmug.com/

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