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Trifid Nebula in Altaz mode : SkyVision T400 + Sony A7S


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here is the famous Trifid Nebula captured last week with my SkyVision 400mm (FD/4) at 1600mm without autoguiding and in altaz mode of course. Derotation with the Optec Pyxis LE Rotator.

Subs of 20s with Sony A7S modded (astrodon)

Clear skies


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13 minutes ago, wimvb said:

Are the odd diffraction spikes due to rotation?

Thanks, no, just a poor focus result...?

Edited by DarkD
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