Celestial hemisphere:  Southern  ·  Constellation: Hydra (Hya)  ·  Contains:  M 83  ·  NGC 5236  ·  Southern Pinwheel Galaxy
M83 monochrome 25 minutes exposure, John Bradshaw
M83 monochrome 25 minutes exposure
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M83 monochrome 25 minutes exposure

M83 monochrome 25 minutes exposure, John Bradshaw
M83 monochrome 25 minutes exposure
Powered byPixInsight

M83 monochrome 25 minutes exposure

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Description

This is a basically unprocessed monochrome image of M83, which was uploaded earlier tonight in colour, to demonstrate the old adage that its easier to start off in monochrome than colour.

The other shot was 190minutes, with series of each of RG&B, 2 luminance duration series and a Ha series.

This is 5 x 240second shots with the same ZWO178MMC but this time mounted on a quattro newtonian (f4). Not as pretty, but sharper (especially the two nearby galaxies) and showing more of the halo than the longer photo (although that data is there on the colour shot - I just chose to upload an image processed for contrast, and red and blue in the spiral arms).

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M83 monochrome 25 minutes exposure, John Bradshaw