The 'Cigar Galaxy', M82 in Ursa Major
Manually, off-axis guided for 9 x 5-minute exposures at ISO 1600, f/4.
Modified EOS 600D & Revelation 12" Newtonian reflector telescope.
Registered and stacked using DeepSkyStacker; initial curves adjusted and noise reduced in Canon Photo Professional; final curves & colour-balance adjusted using Paint Shop Pro.
Not the first time I've imaged this object this year. Last time I used the C8, so it was good to be able to use exposures half as long this time, but at the expense of coma (distorted stars around the edges). I'm still pleased with the result, which I've processed to emphasise the reddish areas of star formation.
The 'Cigar Galaxy', M82 in Ursa Major
Manually, off-axis guided for 9 x 5-minute exposures at ISO 1600, f/4.
Modified EOS 600D & Revelation 12" Newtonian reflector telescope.
Registered and stacked using DeepSkyStacker; initial curves adjusted and noise reduced in Canon Photo Professional; final curves & colour-balance adjusted using Paint Shop Pro.
Not the first time I've imaged this object this year. Last time I used the C8, so it was good to be able to use exposures half as long this time, but at the expense of coma (distorted stars around the edges). I'm still pleased with the result, which I've processed to emphasise the reddish areas of star formation.