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jshuder | all galleries >> Astrophotography >> Sharpless HII Regions > IC443
(SNR G189.1+03.0)
& Sharpless 249 (Sh2-249)
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(SNR G189.1+03.0)
& Sharpless 249 (Sh2-249)

IC443 (SNR G189.1+03.0) lower right& Sharpless 249 (HII Region) upper left in Gemini. Taken Jan. 12,
2007 with a DSI Pro II and Outback Cooler and a Pentax SMC-M 135mm lens. H-alpha subframes (using an
Astronomik 13nm filter) were 240 sec and 150 sec @ f4 while the RGB subframes were 60 sec at f4.
Total exposure of Ha:Ha+R:G:B (min) = 136:136+31:38:38. Color balance was achieved via numerically
scaled channels using a G type field star. Captured with Envisage, calibrated and sigma combined in
Iris with other processing using PixInsight LE and Photoshop CS. North is up.

other sizes: small medium original auto
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