Quote:
Originally Posted by Ant0nio
They don't call it the "Thousand Ruby Galaxy" for nothing. Congratulations on this cracking image of M83 Peter. The colours are vibrant but not at the expense of fine detail & IMO it trumps this; https://apod.nasa.gov/apod/ap190629.html
Cs,
Tony |
Thanks... very kind of you.
Quote:
Originally Posted by matlud
Thanks! That seems pretty similar seeing to what I get. What is your strategy for dealing with the 3-4 arcsec nights -do you cull a lot of subs from those nights, tighten it up with deconvolution?
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Ta, I'm lucky as on the 3-4 arc sec nights I use a shorter FL scope for wider vistas, rather than chase narrow field subjects such as this.
I tend to reserve the RC16 for 2-2.5 arc sec seeing. I constantly re-assess focus and guiding to ensure FWHM's are as tight as possible as the night goes on and things cool.
Excellent raw data means no decon required
I'd also point out the Alluna 'scope is superbly engineered (hey, it's German) and really can deliver the advertised 5 micron spot sizes across a 35mm frame....
tracking and seeing is always the limitation.