Among other things, Nickj wrote:

> There's not really much photorealism in astro photos as apart from the
> optical ones they all use false colours anyway. Perhaps these use a
> different colour table to most but that's allright!

And anyway, optical photographs have such a magnification and sensitivity 
they're are completely unrecognizable from naked-eye experience or even 
with telescope aid. Moreover, there's quite a wide range of techniques, 
emulsions, instruments... almost anything could be "astrophotorealistic", 
meaning it looks like some kind of astronomy picture :)

-- 
light_source{9+9*x,1}camera{orthographic look_at(1-y)/4angle 30location
9/4-z*4}light_source{-9*z,1}union{box{.9-z.1+x clipped_by{plane{2+y-4*x
0}}}box{z-y-.1.1+z}box{-.1.1+x}box{.1z-.1}pigment{rgb<.8.2,1>}}//Jellby

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