Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.


M31 2-frame mosaic
© D Elijah
Credit D Elijah

M31 2-frame mosaic

Sign in to follow this  

Andromeda galaxy M31 taken on 15/08/2017. Taken from Bury.

Weather: Clear skies and good seeing. Moon rising late so not intrusive but bad LP. The guide scope stayed on target the entire night.

Optics and camera: Skywatcher Evostar 120 F/D=8.33 (Achromat) with a Baader UHCs filter. The camera was a IR-filter removed Canon 600D.

Settings: 30 x 3 + 33 x 3 minute lights, 50 darks from library, 50 flats taken recently and 50 bias frames. ISO 800. All images were taken with 15 second intervals to remove residual charge from the sensor.

Mount: Skywatcher AZ-EQ6 with extension pillar.

Processing: The Lights and calibrations frames were processed using Pixinsight. The final images were balanced to retain average white stars. I also used Gimp to add a selective Gaussian blur over a 5 pixel range to blend residual RGB noise and slightly increase saturation.

Comments: My first whole image of M31 using two stacked images. The frames overlapped so the core of M31 received the full 63 frames worth of data. This is a good first attempt but I still need to work on getting faint detail from the edges.


D Elijah


© D Elijah
Sign in to follow this  

From the album:

Photos from Bury

  • 87 images
  • 1 comment
  • 44 image comments

Photo Information for M31 2-frame mosaic

Recommended Comments

There are no comments to display.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Add a comment...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.