Trifid Nebula, M20 in Sagittarius
As 6 of the last 7 nights have been mostly clear, I've a few astrophotos to post over the coming days :-)
In some cases, as here, I've included older frames, taken with the same setup, in the stack to further reduce noise.
22 x 1-minute unguided exposures at ISO 6400 (taken 3 July 2019); 19 x 1-minute unguided exposures at ISO 3200 (8 July 2018); 3 x 3-minute manually off-axis guided exposures at ISO 1600 (17 July 2015).
Modified EOS 600D & Revelation 12" f/4 Newtonian reflector telescope.
Registered and stacked using DeepSkyStacker; curves adjusted in Canon Photo Professional; noise reduction via CyberLink PhotoDirector.
Trifid Nebula, M20 in Sagittarius
As 6 of the last 7 nights have been mostly clear, I've a few astrophotos to post over the coming days :-)
In some cases, as here, I've included older frames, taken with the same setup, in the stack to further reduce noise.
22 x 1-minute unguided exposures at ISO 6400 (taken 3 July 2019); 19 x 1-minute unguided exposures at ISO 3200 (8 July 2018); 3 x 3-minute manually off-axis guided exposures at ISO 1600 (17 July 2015).
Modified EOS 600D & Revelation 12" f/4 Newtonian reflector telescope.
Registered and stacked using DeepSkyStacker; curves adjusted in Canon Photo Professional; noise reduction via CyberLink PhotoDirector.