Here is my version of the Crescent that was inspired by Philip Good's APOD of the same object. I used 120 minutes of H alpha and 140 minutes of OIII. I then constructed a RGB image using the HA data for the red channel and the OIII for the blue channel. For the green channel I added HA data and the OIII data and then divided the sum by 2. I then played with the color balance until I liked the appearance. It is probably way out of balance and heavy in the blue....but this is just one interpretation.
I used my TV60is with a TV 0.8x reducer. ATIK16HR camera with manual filter wheel. Schuler Astrodon 10nm HA and Schuler Astrodon 15nm OIII. Guided with PHD guiding and ATIK16IC thru my MN65. AP1200 GTO mount.
Image taken from central Austin, TX. My house is about 50 feet from a 6 lane highway well lit with sodium vapor lighting. Narrowband imaging is truly phenomenal!
Enjoy,
David
I used my TV60is with a TV 0.8x reducer. ATIK16HR camera with manual filter wheel. Schuler Astrodon 10nm HA and Schuler Astrodon 15nm OIII. Guided with PHD guiding and ATIK16IC thru my MN65. AP1200 GTO mount.
Image taken from central Austin, TX. My house is about 50 feet from a 6 lane highway well lit with sodium vapor lighting. Narrowband imaging is truly phenomenal!
Enjoy,
David
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