NGC2403 in Camelopardalis

CLICK ON IMAGE FOR LARGE VIEW (2400x1800) 

Scope: Celestron 9.25 Edge 235 mm at f/7, Location: Laguna Mountains, CA  25 January 2014  Camera: ST8300M

Exposure: 12 x 10 min  (1x1 bin), 8 x 6.5 min (2x2 bin) exposure with UV/IR block,  8 x 4 min (2x2 bin) RGB exposures.

Processing: Data Collection -  CCDSoft (as FITs).  Calibrated, stacked (Sigma Combine), LRGB channel registration, central gradient removal, and color equalization - Astroart.  Curves, Levels, LRGB combine and finishing  - Photoshop.  Color calibration using eXcalibrator. This image is a straightforward LRGB combine with Luminance layering -   Final Image size is approximately 2400x1800.

North is up in this image.  NGC2403 is part of the M81 galaxy group. This galaxy contains active hydrogen emission areas (seen as the reddish spots) and young blue star clusters. Its distance is estimated at 12 million light years distant from earth. This image replaces an earlier image that can be seen in the Archives here.  The Horizontal FOV is 38'.

Image center is located approximately - Equatorial 2000: RA: 07h 36m 54s Dec: +65°36'00"

All images and content remain the property of Jim Thommes - copyright 2003 - 2014

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