C/2022/ E3 passing NGC1798 in Auriga

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timh
Posts: 515
Joined: Mon Aug 26, 2019 5:50 pm

C/2022/ E3 passing NGC1798 in Auriga

#1

Post by timh »

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
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aacometStarsfrom09_aligned and screened onto SUMof COMET_crop_affinity16_PXlittle.jpg
aacometStarsfrom09_aligned and screened onto SUMof COMET_crop_affinity16_PXlittle.jpg (979.48 KiB) Viewed 1008 times
Last edited by timh on Sun Feb 12, 2023 11:14 pm, edited 1 time in total.
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Menno555
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Re: C/2022/ E3 passing NGC1798 in Auriga

#2

Post by Menno555 »

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

Menno
timh
Posts: 515
Joined: Mon Aug 26, 2019 5:50 pm

Re: C/2022/ E3 passing NGC1798 in Auriga

#3

Post by timh »

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
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