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The California Nebula NGC1499

2/23
ASI2600MM, 360mm/2.8, 16.2h (RGB 3x30m, Ha 3.5h, S 4.9h, O 6.3h)

The California Nebula is yet another starforming region with plenty of ionized hydrogen. Due to its low brightness a decend exposure time is required to reveal the finer structures.

To even more emphasize the finer structures I used a different mapping for the narrowband images than usual.