Celestial hemisphere:  Southern  ·  Constellation: Puppis (Pup)  ·  Contains:  NGC 2467  ·  Sh2-311
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NGC2467, aikd
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NGC2467

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Description

Experiment aim, to test the asymptotic limits of a commodity image acquisition platform set up with minimal site calibration and quite ordinary site conditions. This test image is taken with drift PA done on an Eastern star only, with an illuminated 12.5 mm Plossl. Az adjustment based on iphone and some knowledge of the site. The target is set favorably to the PA i.e. in the East with approx. Az 105 degs, Alt 24 degs. Scope set inside the house, facing a window glass pane, resting on floor boards with some flexure. OTA is NON-EdgeHD with stock 6.3 FR (effective FL 1280mm). Focus acquired manually with APT liveview (no Bahtinov mask or other aid used). The image has some cropping done to eliminate the telescope circular edges and some bringing out of details with GIMP and Affinity.

The test showed the central 33% of the image is generally coma free with rounded stars for subs up to 1-minute exposure plus 10s wait for vibration settlement (per exposure). Thus using a smaller imaging sensor would give higher performance/price ratio. FL of up to 2000mm can be used in light polluted suburban skies. 1-minute unguided may be a viable alternative, to guiding, in such conditions.

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NGC2467, aikd