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Whirlpool Galaxy


don4l

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This image has been taken with a Moravian 16200 on my TAL200k.  The L was taken binned 2 x2 and the RG and B were binned 4 x 4.  I have to admit that the idea of binning data at 4 x 4 seemed mad to me, but as the "galaxy season" progressed I learned the hard way that imaging at 0.6" per pixel is just plain stupid with my equipment, location, skills or whatever.   It took many nights to realise that my unbinned data just looked too blurry to display at 100%.  Eventually, I tried the colour binned 4 x 4, and I didn't seem to lose anything, but I did gain useful data in a fraction of the time.

Exposure -  L (2x2)  306m,  R:G:B (4 x 4) 52: 48: 80  Total 8h 6m.

Tal200K, EQ6

CCDCiel, PHD2, INDI, CCDStack, Gimp

 

M51Mm.jpg

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