Helix Nebula

IMAGING DATA
Optical train: AP130 EDF GT + AP flattner + IDAS/LPS (for 27 subs) or UHC filter (for 25 subs)
Mount: Meade LXD75
Guiding: B&L 80/800 SCT guidescope + SPC900NC + PHD
Camera: Canon 1000D (modded and Peltier cooled to 30°F)
Frames: 27 lights 4 min iso800, 25 of 4 min iso1600, each set calibrated with 30 darks, flats and flat-darks.
Processing: DSS + PI LE + Photoshop + Canon DPP
Date: 2010-10-26
Place: General Pacheco, Buenos Aires, Argentina
Seeing & transparency: mediocre

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