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2018-09-01 Andromeda Galaxy (M31) (WIP)


M31 is the main subject, with NGC206 the blueish patch top-left a cluster of young stars, M32 top-center and M110 truncated bottom-center satellite galaxies.

After a failed attempt last year, I restart this subject on my newton with higher exposure, better framing, and the EQ mount which should allow not to drop too much borders (the alt-az moves were too big and random for this very wide subject).

Framing isn't perfect, as I caught the wrong diagonal to get M110 entirely in the frame. Must remember this next time – though on the field it may be difficult to tell which side is which.

This intermediate result is now much better than last year, and starts to show details.

Gear: Olympus E-PL6 with Skywatcher 130PDS 632mm/4.86 and SWCC at f/4.35 on Omegon EQ-300 tracking RA
Capture: 21 average lights × 40s × 2500 ISO, 33 darks
Site: deep country 26km from Limoges, France
Sky: good (given bortle class 3, usual sqm >21)
Processing: Regim 3.4, Fotoxx 12.01+


© Fabien COUTANT
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From the album:

Other (Narrow field, DSO, EQ)

· 16 images
  • 16 images
  • 4 image comments

Photo Information

  • Focal Length 0 mm
  • Exposure Time 40/1
  • f Aperture f/1.0
  • ISO Speed 2500

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