Acquired on a night of unusually good seeing, as evidenced by a "perfect" guiding (RMS error < 0.4") and perfectly shaped V-curves during focusing.
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IMAGING DATA
Optical train: AP167FLZ + flattener
Mount: AP1100 CP4
Guiding: QHY5II-L, 60/230 guidescope.
Camera: Apogee U8300 (-30°C)
Filters: Astrodon 2nd Gen 3nm H-alpha,OIII, SII
Frames: 13x10-min H-alpha, 14x10-min OIII, 13x10-min SII, binned 1x1
Processing: PI 1.8 + Canon DPP
Date: 2019-03-13
Place: General Pacheco, Buenos Aires, Argentina
Seeing & transparency: very good/good (suburban skies)
