Negative view (high contrast)
NGC 2237
(Rosette
nebula)
Optic: FSQ-85ED Takahashi + 0.73X focal reducer. Camera: QSI-583 @ -25°C (+ Astrodon Halpha CCD filter 5 nm). Mount: G11. Processing: Isis software. Exposure: 60 minutes (6 x 600 s). Location: Castanet-Tolosan (suburban conditions). Date: February 28, 2012
Reduced view (click on
the image for enlarge)
Negative view (high
contrast)
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of NGC 2237 nebula