LBN 400 in Cygnus

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Scope: FSQ-106N refractor at f/5,  Laguna Mountains, CA   23 August 2012, Camera: ST8300M

Exposure: 14 x 10 minutes H-Alpha (1x1 bin),  8 x 3 minutes RGB Exposures (2x2 bin) 

Processing: Data Collection -  CCDSoft (as FITs).  Calibrated, stacked (Sigma Combine), LRGB channel registration, central gradient removal, and color equalization - Astroart.  Curves, Levels, HaRGB combine and finishing  - Photoshop. This image is a HaRGB combine with Ha channel and total RGB matched to minimize color shift.  Selective sharpening was applied to nebula features.   Final Image size is approximately 2400 x 1800.

North is up in this image. LBN400 is a region of emission nebulosity in the constellation of Cygnus. The bright blue star is HD 203064 (aka SAO 50690, 68 Cygni). This star is considered one of the more significant of 6 ionizing stars for the emission nebula . This image replaces an earlier image in the archives here.  The Horizontal FOV is 120'.

Image center is located approximately - Equatorial 2000: RA: 21h 19m 37s Dec: +43°44'03"

Hydrogen Alpha Emission ONLY IMAGE:

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All images and content remain the property of Jim Thommes - copyright 2003 - 2012

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