OBJECT |
M42
- Great Nebula in Orion
(image above is
reduced-size | other sizes: medium
, original)
Distance:
1,344 light years |
Telescope |
Takahashi TOA-130F @ f/7.7 |
Mount |
Takahashi EM200 Temma II |
Camera |
QSI 540wsg @ -15C |
Filters |
Astrodon Ha (3nm), Astrodon Tru-Balance I-Series LRGB Gen
2 |
Guider |
SX Lodestar |
Settings |
1x10min,3x5min Ha; 8x5min L (bin1x1); 3x5min ea RGB (bin2x2); AstroArt5, CS4 (slightly cropped, 10xdarks/flats/fdarks/bias) |
Date/Location
Notes |
28 March 2014 - Las Cruces, NM
This image is LHaRGB, where Ha:L (80:20) was used for Luminance.
Result is my first try at blending a mask of long/short subs to show
detail in the bright center. Clearly I went a bit long for the RGB subs,
so overexposed color channels in the central Trapezium area, oh well :) |
Copyright Jeffrey O. Johnson
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