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M31 Mosaic - Starless, 


            Steve MacDonald

M31 Mosaic - Starless

Technical card

Imaging telescopes or lenses: Sky watcher Esprit 100mm Esprit 100 Pro f/5.5

Imaging cameras: Moravian G2-8300FW G2-8300 + FW

Mounts: Skywatcher Eq6

Guiding cameras: ZWO ASI120MC ZWO

Focal reducers: Skywatcher Flattener

Software: Sequence Generator Pro, PHD2 SGP + PHD2  ·  Astro Pixel Processor  ·  Pixinsight

Filters: Baader G 1.25"  ·  Baader R 1.25'' CCD Filter  ·  Baader B 1.25'' CCD Filter  ·  Baader L 1.25" CCD Filter

Accessory: Pegasus Astro Focus Cube  ·  Pegasus Astro Ultima Power Box

Dates:Aug. 26, 2020

Frames: 314x300"

Integration: 26.2 hours

Avg. Moon age: 8.17 days

Avg. Moon phase: 58.29%

Basic astrometry details job: 3805926

Resolution: 6060x4552

Locations: BYO, Limassol, Cyprus

Data source: Backyard


4 panel mosaic of M31. Not quite got the intensity or the panels correct (3rd year in a row) and I know the starless image isn't everyone's cup of tea but I quite like it. Taken over several days with 3 hours in each panel for L and 1.5 in each panel of RGB. Total integration of 30 hours. STars removed using Starnet in PI.



Steve MacDonald
License: None (All rights reserved)


  • M31 Mosaic - Starless, 


            Steve MacDonald
  • Final
    M31 Mosaic - Starless, 


            Steve MacDonald


Description: Re-processed in APP. Think I've gone to the edge of the mosaic without the seams becoming too much. Not perfect but happier now.


M31 Mosaic - Starless, 


            Steve MacDonald