SharpCap Forums

A close in 'still' shot to complement Ewalds's nice wide field moving image

~ 7.15 pm 5'th Feb Thames Valley U.K

Sharpcap gave me a nice comet stacked EEA image to admire while I was capturing 185x5s, 60x20s and 19x40s exposures using an ASI1294 MC PRO camera, VX12 300 mm F 4 Newtonian, aplanatic coma corrector etc on an Ioptron CEM70 mount. Short exposures because movement was fast and especially at f 1200mm.

Conditions not great - Bortle 7 - sky somewhat unsteady then deteriorating - but good enough. Processed in PixInsight - after some difficulty working out how to align everything and sort out noise and gradients etc --managed to extract a reasonable starless comet image and a separate stars only image near the NGC1798 cluster. Only about 50 min of data in total. Some sort of tail just about visible - but wrong place for the ion tail.

Tim

Great capture of this pair.
Kind of unique too since it will never be captured again, ever

Menno

Thanks Menno, yes indeed quite a contrast to so much else that we observe that is unchanging on our timescale. Glad that I managed to get a picture at all even though conditions not great. Tim