IC1396A (Elephant’s Trunk Nebula)
An astonishing image, from an initially uninspiring appearance.
Equipment:
Refractor, 132 mm aperture, 928 mm focal length
TMB Flattener 68
QSI683wsg, 8-position filter wheel, Astrodon filters
Paramount MX
SX Lodestar guide camera (off-axis guider)
Software: (Windows 10)
Sequence Generator Pro, ASCOM drivers
TheSkyX Pro
PHD2 autoguider software
PixInsight (Mac OS)
Exposure: (RGB Hα, SII, OIII)
Hα, OIII, SII bin 1; 40 × 1200 seconds each
RGB bin 1; 20 × 300 seconds each
Just occasionally, everything falls into place. It does not happen very often but when it does, it gives enormous satisfaction. It is certainly a case of “fortune favors the prepared mind”. This image is one of my favorites and is the ...
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