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.

Petavius - moving terminator
© D Elijah
Credit D Elijah

Petavius - moving terminator

Date: 05/11/2017

Video recording taken from my front drive (Bury, Lancs). Despite lots of nearby houses I had very still air to image through. No clouds.

Telescope: SW 150mm F12 Mak-Cass. With a Baader fringe killer filter.

Mount: SW EQ5 pro with extension pillar.

Camera: Canon EOS 550D in 60 frames/s movie crop mode, ISO 200, exposure 1/60s. I took 3 minute recordings (10800 frames).

Processing: Movies were initially processed in Pipp, keeping the best 2000 frames and decompressing them. The decompressed frames were then passed to Registax aligned using 100 points. The best 90% of the frames (using the Registergraph) were kept and stacked. The final image was enhanced by amplifying the first three wavelets by 80, 20, and 5 respectively. Drizzle 2x was also used.

Comments: The terminator is moving west, the first image/movie was taken at about 21:00 and the next was taken at about 23:00 so the animation represents about 2 hours of terminator movement. The slight tilt between the frames is because of lunar liberation, I decided to keep it in the animation. The deepening shadows are clear on all major features here. I like the shadow of Petavius's central peak - it extends out towards the crater walls.


D Elijah


© D Elijah
  • Like 1

From the album:

Lunar work

  • 32 images
  • 25 image comments

Recommended Comments

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.