Hi all
I started collecting data for this in mid-June and got the last few 2
nights ago.
This is a 2 frame mosaic of this lovely nebula in Scorpius. I did a
widefield version of this last year, but this is the high-res companion
consisting of 46 hours total exposure time (6hrs SII, 6hrs OIII, and 11
hours HA per frame).
Of course, stellar FWHM is always reduced with narrowband, but with the
AO-L working as well, many of these frames came in at 1.3-1.6" raw FWHM.
Usual kit - 12.5" RC, STL11K, AO-L, Astrodon filters, PME.
Cheers and thanks for looking
Martin
http://www.martinpughastrophotography.id.a u/IC4628Mosaic.jpg