The equipment comprised a William Optics 81 mm ED APO refractor with a 0.8 flattener/reducer ED APO refractor with an Altair magnetic 2" filter holder with an Altair Quadband filter, a ZWO EAF and an Altair Hypercam 533C 14 bit OSC CMOS camera.
RAW data were captured with AstroDMx Capture for Windows. The scope was mounted on an AVX GOTO mount which was controlled by AstroDMx Capture via an INDI server running on the imaging computer indoors.
The mount was placed on permanent marks on the ground which quickly gives quite a good polar alignment if care is taken with the placement of the tripod feet.
An SVBONY SV165 guide scope with a natively connected QHY-5II-M guide camera was used for PHD2 multistar pulse auto-guiding via the INDI server. The auto-guiding was controlled by a separate Linux laptop indoors.
The data were debayered, stacked, SPCC processed and star Xterminated in PixInsight, further processing was done in GraXpert, Cosmic Clarity at the command line, The Gimp 2.10 and PhotoPea.
Click on an image to get a closer view
NGC7000 RGB stretched with linked channels
NGC700 linked and unlinked channels blend
Steve Wainwright and Nicola Mackin
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