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| 6-18 to 6-29-08 | |
Sharpless 2-101, the Tulip Nebula, in Cygnus.
DSI Pro III, Astrodon 3nm Ha and SII filters, Celestron C80ED refractor.
Ha: 24 x 15 minutes
SII: 7 x 15 minutes
Bicolor mapping method, using Red = Ha, Green = SII, and synthesized Blue = Ha x SII.
Color balanced for white stars at the high end and black background at the low end.
Ha also used as luminance.
Copyright Kelvin Phoon 2011
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