Barred spiral galaxy M91 in Coma Berenices
Again, the stars are rather poor, with coma and bloating, but I was pleased with the spiral structure of the galaxy.
9 x 4-minute exposures at ISO 1600, f/4. Manually guided off-axis. Modified EOS 600D & Revelation 12" Newtonian reflector telescope.
Registered and stacked using DeepSkyStacker; initial curves adjusted in Canon Photo Professional; noise reduction, colour balance and final curves adjustment via CyberLink PhotoDirector.
Barred spiral galaxy M91 in Coma Berenices
Again, the stars are rather poor, with coma and bloating, but I was pleased with the spiral structure of the galaxy.
9 x 4-minute exposures at ISO 1600, f/4. Manually guided off-axis. Modified EOS 600D & Revelation 12" Newtonian reflector telescope.
Registered and stacked using DeepSkyStacker; initial curves adjusted in Canon Photo Professional; noise reduction, colour balance and final curves adjustment via CyberLink PhotoDirector.