Sunday, July 06, 2008
©2008 Richard Murray
Full Size Image
Notes: This is open cluster NGC7380 with emission nebula SH2-142 taken from my home observatory. This is a narrowband image taken with an Ha and an OIII filter with Ha as Red, OIII as blue and a synthetic green channel created from the Ha and OIII data using Steve Cannistra's Bicolor Technique.
A drawback of narrowband imaging is that you don't get any color information in the stars. So weather permitting, I may take some RGB images just to give the stars back some of their color.
Telescope: Megrez 80mm APO
Camera: Atik 16hr
Filters: Ha6nm and OIII14nm
Exposure: Ha-100 min (10 min subs), OIII-50 min (10 min subs bin2x2)
Processing: CCDStack, Photoshop CS2
Location: Burke Ave. Observatory, Three Rivers, Michigan