Dans la galerie de photos de Optique Unterlinden ... ;-)
ma petite M51 sur le Lacerta 250/1000 et ZWO1600 et EQ6-R
"Click here , top see the page ... at the bottom M51" 😍😍😍
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I reworked the totally my process and the MIX between LRGB and Halpha, to submit a new version of this famous M51.
Exposure : 11hours 15min for LRGB and 10hours 05min for Halpha .
I processed the subs and the image with the same method use for M101 my previous image.
For the Light , I selected around 30% of the best Fwhm subs and combined them with all the subs to get sharper details ands smaller stars.
I started with 3 nights : 05, 06, and 08 of February, but I was not happy with the background noise, so I almost double the number of subs , the 23, 24 and 25 of February ...
Red 32 subs@180s -20°C gain 139
Blue 30 subs@180s -20°C gain 139
Green 29 subs@180s -20°C gain 139
Light 134 subs@180s -20°C, gain 139 and zero
Halpha 121subs@180s -20°C gain 139
Tell me what you think of this new version ?
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