Mosaic of Orion's Belt



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Date: 2 Jan 2025
Location: High Halden, Kent
Exposure: Each of the 6 panes is 20 x 2min giving a total of 120 x 2min
Telescope: Takahashi Epsilon 180ED on Skywatcher EQ6 mount
Camera: Altair Astro AA24CFX
Guiding: Nikkor 300mm lens with Altair Astro GP290M camera.
Filters: Camera internal IR/UV cut filter

Processing: Stacked in PixInsight, white balanced with SPCC, colour correction matrix applied and stretched with Arcsinh Stretch (to preserve hue and saturation) then sRGB gamma curve applied

Comments: The mosaic is 2 panes horizontally by 3 panes vertically. PixInsight's new MultiscaleGradientCorrection process was used to remove large scale gradients in each pane before assembling into the final image.