Quote:
Originally Posted by LightningNZ
he's using a 14" Hyperstar (F/1.9)
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Even with the same camera, I reckon that 1 hour under cold dark skies (say mag 22/arcsec^2) at F/1.9 would need around 240 hours under suburban skies (mag 19/arcsec^2) at F/7.5 to get the same SNR on the wonderful outer dust.