Uploaded 15-Jun-10
Taken 15-Jun-10
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21 of 51 photos

M20, the Triffid nebula

M20, the "Triffid Nebula" in constellation Sagittarius. Distance about 7600 light years.

M20, imaged with a Northern Galactic members remote telescope in Australia,
http://3.bp.blogspot.com/_9HcYqbvUc4s/S-b4XGoaKCI/AAAAAAAAEVg/lmCuJMbTT-c/s1600/NGTelescopeL.jpg

Impressive instrumentation and great location in Souther Australia under a dark Sky, makes possible to go deep in very short time! Image above has only 70min. total exposure time, Luminance is 25 min.
I'll shoot more lights for this later.

Technical details

16" RCOS ja Apogee U9000 camera.
LRGB combo.
LRGB-image, Luminance=5x300s + 5x600s, total 1h 15min.
Red=3x300s, Dark and Flat calibrated.
Green=3x300s, Dark and Flat calibrated.
Blue=3x300s + 1x600s, Dark and Flat calibrated.
Raw data is shared with Petri Kehusmaa and J-P Metsavainio

Processing workflow:
Image acquisition, MaxiDL v4.xxx
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations.
Levels, curves and color combine in PS CS3.

M20, the Triffid nebula

M20, the Triffid nebula

M20, the "Triffid Nebula" in constellation Sagittarius. Distance about 7600 light years.

M20, imaged with a Northern Galactic members remote telescope in Australia,
http://3.bp.blogspot.com/_9HcYqbvUc4s/S-b4XGoaKCI/AAAAAAAAEVg/lmCuJMbTT-c/s1600/NGTelescopeL.jpg

Impressive instrumentation and great location in Souther Australia under a dark Sky, makes possible to go deep in very short time! Image above has only 70min. total exposure time, Luminance is 25 min.
I'll shoot more lights for this later.

Technical details

16" RCOS ja Apogee U9000 camera.
LRGB combo.
LRGB-image, Luminance=5x300s + 5x600s, total 1h 15min.
Red=3x300s, Dark and Flat calibrated.
Green=3x300s, Dark and Flat calibrated.
Blue=3x300s + 1x600s, Dark and Flat calibrated.
Raw data is shared with Petri Kehusmaa and J-P Metsavainio

Processing workflow:
Image acquisition, MaxiDL v4.xxx
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations.
Levels, curves and color combine in PS CS3.