M1 Crab Nebula - Second Try.
Canon 550d with CGEM DX 1100HD. Stack of 8 using Deepskystacker. The 8 were taken over two sessions, each at 15 min exposure (with 15 min dark frame) at ISO 800.
Second session had much worse seeing with FWHM at >11 pixels with the first being at <8 pixels.
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Uploaded on October 23, 2011
Taken on October 23, 2011
M1 Crab Nebula - Second Try.
Canon 550d with CGEM DX 1100HD. Stack of 8 using Deepskystacker. The 8 were taken over two sessions, each at 15 min exposure (with 15 min dark frame) at ISO 800.
Second session had much worse seeing with FWHM at >11 pixels with the first being at <8 pixels.
804
views
2
faves
1
comment
Uploaded on October 23, 2011
Taken on October 23, 2011