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Scope: Megrez II f/4; Location: Dos Picos Park,
Ramona and Del Mar, CA; 8 March and 11 March,
Exposure: 10 x 60 sec Luminance exposure (bin 1x1) (8/4) with Baader IR Block Filter;
x 30 sec RGB (bin 2x2) (11/4)
Processing: Images were captured Artemis Capture (as FITs). Aligned/stacked in Registax
3 and saved as FITS. Luminance and Color channels were scaled and rough color balanced in
Astroart. Central Gradient removal was performed in Astroart. Channels were co-registered in
Astroart. The 60 sec exposures were used as
the main luminance with level adjustments and curves to bring out dim stars. Final LRGB combine was done in Photoshop.
Luminance Layering (LLRGB) was used to bring out star colors. Color
balancing and final touches were done in Photoshop. SGBNR was used to smooth background noise on the
Final Image size is approximately 1392x1040
This image was guided; North is up. NGC 2546 is an open cluster in the
constellation of Puppis. Its distance from Earth is about 3,300 light
years. It is a rather Southerly target from my location and just skims my
Southern horizon so the imaging conditions are challenging even for a bright
open cluster such as this. Horizontal FOV is 96'
Image Center is approximately - Equatorial 2000: RA: 08h 12m 24s Dec: -37°37'00"