|It is virtually impossible to find a deep-sky object, which
remains out of sight of amateur astronomers these days. While everything
on the sky is already imaged many times, taking astrophotography
ourselves brings joy and satisfaction, when mysteries of the universe
reveal themselves during processing and stacking of acquired
Orion belt and iconic Flame and dark Horse Head
nebulae definitely belong to often imaged objects. This time we
present image by Peng Tanyaphat done exceptionally well. What makes
image exceptionally good? We agree this depends on personal
preferences, but for us such image has to be precisely focused and
tracked with pinpoint dim stars and nicely round bright ones. Exposure
time should be long enough to reveal even the darkest portions of the
nebulosity, small globules of interstellar gas and other details. On
the other side, brightness scale should not be over-stretched, making
the darkest portions of the image visually as bright as the really
brightest parts of the nebula – people viewing the image should be
able to understand which part of the nebula is in reality bright and
which is dim.
This image was acquired with G3-16200 camera on Takahashi FSQ106EDX
telescope with 0.73QE reducer. Image was acquired through narrow-band
Hα filter and red, green and blue filters.
Total exposure times was 20 hours.