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Old 09-12-2009, 10:20 PM
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gregbradley
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Join Date: Feb 2006
Location: Sydney
Posts: 18,183
Thors Helmet in bicolour slight repro

Nearly full moon last weekend but otherwise nice skies and good seeing.

I got out the narrowband filters and this one is a bicolour (Ha red + O111 blue plus (Ha+O111)/2 for green.

The O111 was shot 2x2 mainly with some 1x1 to see if I was missing out on much resolution. I seemed to get the lost resolution back through using deconvolution possibly thanks to the brighter image (higher signal).

Ha 90 O111 90.

TEC180mm fluorite triplet, Tak NJP mount, FLI ML8300, Astrodon 5nm Ha and O111 filters. From my dark site observatory.

http://www.pbase.com/gregbradley/image/120140813

I plan to produce another version of this as I have several hours of LRGB on this object from earlier in the year to combine with it.

Greg,

Last edited by gregbradley; 12-12-2009 at 12:04 AM.
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