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2018-09-07 Trifid Nebula (M20)


Early september I could add 2 new little sessions to my previous windy try at this subject.
Now stars have a much better shape.

Still needs more subs to allow for more stretching and uncover more clearly the blue nebulosity around the main, red part.

Gear: Olympus E-PL6 with Skywatcher 130PDS 632mm/4.86 and SWCC at f/4.55 on different mounts
Capture: blend of 9 x 30s 3200 ISO on Celestron Nexstar SLT tracking Alt-Az
+ 13 x 40s 1600 ISO + 10 x 30s + 4 x 40s 3200 ISO on Omegon EQ-300 tracking RA
(total exposure: a bit less than 21mn)
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
  • Like 2

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 3200

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