M42 - Great Nebula In Orion
Date: 28 December 2013
Equipment: Skywatcher Explorer 150P, EQ3-2 with dual-axis motor drive, Skywatcher 0.9x Coma Corrector, Canon EOS 1100D
Exposure: 187 x 20s @ ISO400 with dark, bias and flat frames
Total exposure: 1 hour 2 minutes 20 seconds
Processing: Exposures captured with Astrophotography Tool, raw files (cr2) stacked with Deep Sky Stacker Beta, curves adjusted, background removed and noise filter applied with Fitswork.
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Frustrated with having to discard most of my images due to tracking inaccuracies of the EQ3-2 mount, I decided to take short exposures so I could keep 90+% of the light frames. 20s exposures were chosen and this was the first result.
M42 - Great Nebula In Orion
Date: 28 December 2013
Equipment: Skywatcher Explorer 150P, EQ3-2 with dual-axis motor drive, Skywatcher 0.9x Coma Corrector, Canon EOS 1100D
Exposure: 187 x 20s @ ISO400 with dark, bias and flat frames
Total exposure: 1 hour 2 minutes 20 seconds
Processing: Exposures captured with Astrophotography Tool, raw files (cr2) stacked with Deep Sky Stacker Beta, curves adjusted, background removed and noise filter applied with Fitswork.
-------------------------------------------------------------------------------------
Frustrated with having to discard most of my images due to tracking inaccuracies of the EQ3-2 mount, I decided to take short exposures so I could keep 90+% of the light frames. 20s exposures were chosen and this was the first result.