versions: 1024 x 768 1988 x 1320
Object Type: Emission
Size: 46' x 37'
Known alternately as the
Swan, Omega, Horseshoe, or Lobster Nebula, M17 has a high surface brightness and is a
wonderful sight in a telescope of any size. It is 5,900 light-years from the solar
system and contains an open cluster still in the process of forming out of the gas
contained in the nebula.
Meade LX200R/STL-11000M/Astrodon LRGB filters/Paramount ME
Exposure: RRGB: R 8 x 7 minutes, binned 2x2; G 8 x 2 minutes; B 8 x
2 minutes; GB binned 3x3
Date: August 19, 2006
Location: Landers, California, USA
Technical Notes: Individual
exposures were obtained using CCDAutoPilot2 and then sigma combined. The RGB image was created in Registar 1.0. A high-pass
filter of 8 pixels was selectively applied to the bright portions of the luminance image.
The R channel was used as luminance and initially combined with the RGB image using an
opacity of 50% to maintain color saturation. This LRGB image was then flattened and then
combined again with the luminance image using an opacity of 100%.