California Nebula - NGC1499 in Perseus



Scope:  Megrez II  f/3.1 Location: Tierra Del Sol (SDAA dark site), CA   5 November, 2005  Camera: Artemis285

Exposure: 8 x 360 sec H-Alpha (1x1),  8  x 120 sec Luminance (bin 1x1) with  IR/UV Block plus Green Filter 8 x 60 sec RGB Exposures (2x2).

Processing: Images were captured  with Artemis Capture (as FITs).  Aligned/stacked in Registax 3 and saved as FITS. Luminance,  H-Alpha,   and Color channels were scaled and rough color balanced in Astroart. Central gradient removal in Astroart. Channels were co-registered in Astroart.  The 120 sec exposure was the main exposure for the luminance construction - the H-Alpha was used for nebula detail. Curves and Levels were applied in Photoshop to optimize object appearance.  Final LRGB combine was done in Photoshop using Luminance Layering (or LLRGB).  Color balancing and final touches were done in Photoshop.  Selective layer sharpening was performed on prominent nebula features. Final Image size is approximately 1388x1036.

All exposures in this image were guided; North is up in this image. NGC 1499 is an emission object in Perseus. The bright star in the lower right is Xi-Persei (common name Menkib). This star is the suspected  illumination / energy source for the nebula. This image replaces an earlier image that can be seen in the Archives here. The Horizontal FOV is 122'.

Image center is located approximately - Equatorial 2000: RA: 04h 03m 14s Dec: +3621'33"


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