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Captured by
Douglas Rollain

M20 Trifid Nebula in LRGBHa

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NGC 1491 in "modified" Hubble Palette image

NGC 1491 in "modified" Hubble Palette


Acquisition Details
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Description

This image is a collaboration with Bill Snyder. He captured all the data and we processed it. A big thanks to Bill for sharing his data and allowing us to process it and share our results with everyone. NGC 1491 is an emission nebula located around 10,700 light-years away in the constellation Perseus. Newly born stars emitting ultraviolet light make elements in this nebula glow. At the center of the nebula is an 11th magnitude star whose stellar wind is blowing a bubble in the gas surrounding it. Other designations for this nebula are Sharpless 206 (Sh2-206), Cederblad 25, & LBN 704. This image was processed in the "modified" Hubble Palette as outlined by Bob Franke, where SII = Red, H-alpha = Green, OIII = Blue with the selective color tool in Photoshop being used to shift the colors to the popular and well-liked turquoise and gold motif. Telescope: PlaneWave Instruments 17" CDK Astrograph Mount: Software Bisque Paramount ME Camera: Apogee Alta U16M Filters: Astrodon 5nm Ha, 3nm OIII, 5nm SII Exposure: 21 x 20min. Ha; 12 x 20min. OIII; 12 x 20min. SII Post-processing: ImagesPlus 5.0; Adobe Photoshop CS5; Gradient XTerminator; Noel Carboni's Actions

  • User details
  • Craig & Tammy Temple
  • Craig & Tammy Temple
  • January 26, 2016