I photographed the Rosette Nebula last night. I shot 3hr and 30min of data (14x900s) with a 12nm hydrogen alpha filter, then shot 51min of color data (17x180s) through a CLS filter. When I went out to change filters I found that my lens was covered in frost. So I'm not sure how many of my H-alpha subs were taken through a frosty lens, but I went ahead and stacked them anyway. Either way, I think it turned out well.
Here's the H-alpha image:
Rosette Nebula in Hydrogen Alpha by Neil's Astro, on Flickr
Exposure: 14 x 900 second exposures at ISO 800 [3hr 30min total exposure]
Camera: Canon EOS 60Da
Filter: Astronomik 12nm clip-in Hydrogen Alpha filter
Telescope: Orion ED80 with .85x Focal Reducer (fl=510mm)
Mount: Losmandy G-11
Guider: Orion SSAG through ST80
Date: 1/19/2014
Exposures shot RAW in BYEOS, stacked in Deep Sky Stacker, and processed in Photoshop
Here's my HaRGB composite, made by blending the Ha into the red channel:
A Cosmic Rose by Neil's Astro, on Flickr
Exposure: Ha: 14 x 900 second ISO 800 RGB: 17x180s ISO 400
(4hr 21min total exposure)
Camera: Canon EOS 60Da
Filter: Astronomik CLS and 12nm clip-in Hydrogen Alpha filter
Telescope: Orion ED80 with .85x Focal Reducer (fl=510mm)
Mount: Losmandy G-11
Thanks for looking!
Edited by nwinston, 20 January 2015 - 10:11 PM.
