Observation by Martin Ratcliffe: Jupiter May 17, 2018

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Martin Ratcliffe


Martin Ratcliffe


2018 May 17 - 11:23


2018 May 19 - 21:47



  • C14 at F/10
  • ASI 178MM camera
  • RGB filter wheel

Valley Center, KS, USA

Target name



Jupiter May 17, 2018

About this image

2000 frames in each filter, stacked with AutoStakkert, wavelets in Registax, and sharpened in Photoshop, then processed through WinJUPOS. I used my new camera purchased in April and been experimenting on Jupiter.

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James Dawson
James Dawson, 2018 May 20 - 09:34 UTC

A really lovely set of images. I have C14 envy, but I don't use my C11 enough to warrant buying a C14. I am also lazy when it comes to cameras and I am a one shot colour kind of guy. I like seeing the RGB filtered frames, and it always amazes me of the different details which each filter picks up; plenty of signal from the GRS with the red filter (as to be expected), and minimal in the blue filter, but a fair amount in the green. Two questions. 1. was this all imaged at f/10 or do you use a Barlow or Powermate to effectively get more focal length? 2. How often do you collimate your C14 - I know Damian Peach checks his collimation every night and adjusts if necessary. 

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