Object info

IC59 (the blue nebula) and IC63 (the red part) are good examples of a reflection nebula and an emission nebula.
The blue reflection nebula is illuminated by the light of Gamma Cassiopeia (the center star in the W shape of Cassiopeia).

The emission nebula consists of ionised hydrogen and therefore appears red in this image.
The reflection nebula lights up by the starlight of Gamma Cassiopeia. The starlight scatters off dust clouds which causes the blue reflection.

Both nebulae can be found in the center of the constellation Cassiopeia and lie at a distance of about 600 light years.

Processing

DSLRFocus was used for focussing. All separate frames were calibrated, aligned and stacked in ImagesPlus 2.8. "Dynamic Background Extraction" (DBE) was done in PixInsight. Photoshop CS2 (incl. Noel Carboni Astronomy Tools) was used for further processing - curves adjustment, levels adjustment, etc. The image was calibrated using 40 darks, 25 flats and 30 bias frames.

Comments

Very dim nebulae, the red part only barely shows up in a 6 minute exposure @ ISO 800.

Previous versions

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