Image of the day

Captured by
Douglas Rollain

M20 Trifid Nebula in LRGBHa

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M33 (Cropped from Wide Field) image

M33 (Cropped from Wide Field)

Contains: Deep sky object
Acquisition Details
  • Number of frames:
  • FPS:
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  • CMI/CMII/CMIII:
Description

This imaging session was performed on 11/6/20 and I used my FSQ-130ED at prime focus which resulted in a focal length of 650 mm. I guided with a 60 mm scope and a ZWO camera and used PHD2 and APT software for the acquisition of the images. My image camera was a Canon Ra and I did use a Skytech LPRO-MAX filter. Twenty images were captured at ISO800 for 360 seconds each. I posted an image of this galaxy a while back but recently I started using different techniques in the post processing phase and did not use as aggressive steps as I had been using. Also, I used Starnett ++ to remove the stars and then made a layer in Photoshop to add these stars back in. I was always blowing out the stars when I stretched my images prior to using this method. The galaxy now appears to have more structure and I used very small post processing steps to leave the structure there. Prior to this, the structure was ruined due to over processing.

  • User details
  • Mark Killion
  • Mark Killion
  • June 28, 2017