M33, LRGB, Vixen 81s + Atik 314E

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turfpit
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M33, LRGB, Vixen 81s + Atik 314E

Post by turfpit » Sat Nov 02, 2019 7:20 pm

M33, Triangulum Galaxy, captured under Bortle 6 skies. Celestron AVX + Vixen 81s + 0.8x reducer + Atik 314E. Teleskop LRGB filters. Polar scope with 2 + 4 star alignment and All Star Polar Align (ASPA). Unguided, focus with Bahtinov Mask. SharpCap + Astro Pixel Processor. L bin 1x1, RGB bin 2x2, 25 darks, 100 bias, 100 flats. Total Integration Time = 3h 15m.

Colour balance achieved at point of capture by varying RGB exposures. Many thanks to Brian (@oopfan) for his work at https://u235.herokuapp.com/ especially the LRGB Calculator https://u235.herokuapp.com/#color-balance-instructions and description of G2V stars and the use of AstroImageJ.

M33-L50x120s-R20x114s-G20x67s-B20x104s.jpg
M33-L50x120s-R20x114s-G20x67s-B20x104s.jpg (239.53 KiB) Viewed 403 times

LRGB-filter-characteristics.JPG
LRGB-filter-characteristics.JPG (42.72 KiB) Viewed 403 times

This object could do with more data and/or darker skies but for me M33 is now becoming 'meridian challenged'

Dave

BlackWikkett
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Re: M33, LRGB, Vixen 81s + Atik 314E

Post by BlackWikkett » Tue Nov 05, 2019 9:33 pm

Well done Dave.

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turfpit
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Re: M33, LRGB, Vixen 81s + Atik 314E

Post by turfpit » Tue Nov 05, 2019 11:55 pm

Thanks Wickett.

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