M31 (Andromeda Galaxy)
Sensitivity and novel techniques to get the best from a classic subject.
Equipment:
Refractor, 98 mm aperture, 618 mm focal length
Reducer / flattener (0.8x)
QSI683 CCD (Kodak KAF8300 sensor)
QSI integrated Filter Wheel (1.25” Baader filters)
QSI integrated off-axis guider with Lodestar CCD
Paramount MX, Berlebach tripod
Software: (Windows 7)
Sequence Generator Pro, ASCOM drivers
PHD2 autoguider software
PixInsight (Mac OSX)
Exposure: (LRGBHα)
L bin 1; 10 × 120, 15 × 300, 15 × 600 seconds
RGB bin 2; 15 × 300 seconds, Ha bin 1; 15 × 600 seconds
There are a few popular images that appear in every-one’s portfolio but at the same time present technical difficulties that require special measures to make the very ...
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