December 20, 2007

NGC1499 California Nebula in Ha

OK, that was the coldest, frostiest night I`ve had to endure yet…

The horizon was very murky, but the zenith was very clear and steady… just a shame about the moon illuminating everything. Time to break out the Hydrogen Alpha filter again.

OTA: William Optics ZenithStar 66 SD + 0.8 FR/FF
Guiding: NS8GPS @ f/10 + DSI-C + PHD
Imaging: QHY8 + MaximDL, 10 x 900s, Astronomik Ha 13nm
Stacked: DeepSkyStacker
Post Process: MaximDL + ImagesPlus + PSCS2 + Noel Carboni’s AstroTools
Note: I forgot to take bias frames… doh!

Not sure which version I like best… the slightly softer whispy one (first), or the more contrasty version (second)

(Click on the image for a larger version)

(Click on the image for a larger version)

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