This object is often rendered with many variations in colors and hues, even when imaged in visible light alone (as in this case). I first tried to color-calibrate using eXcalibrator v5.0, a software that uses the spectral profiles of hundreds of stars in the field of view to come up with weights for each color channel, but then settled with the Pixinsight approach.
For a high resolution version click
here.
IMAGING DATA
Optical train: AP167FLZ + flattener
Mount: Losmandy G11
Guiding: QHY5L-II mono + 230mm guidescope
Camera: Canon 6D (modded and peltier cooled, sensor @-1°C)
Frames: 47 lights 5 min. ea. @iso1600, calibrated with 200 bias, 32 darks and 38 flats.
Processing: PI 1.8 + Canon DPP
Date: 2017-04-29
Place: San Antonio de Areco, Buenos Aires, Argentina
Seeing & transparency: good/very good (rural skies)
