Observation by Martin Lewis: Mars 20th Sept 2020 No L Filter

Uploaded by

Martin Lewis

Observer

Martin Lewis

Observed

2020 Sep 20 - 22:56

Uploaded

2020 Sep 23 - 22:39

Objects

Mars

Equipment
  • 444mm Dobsonian
  • ASI224MC
  • NO L Filter
Location

St.Albans, UK

Target name

Mars

Title

Mars 20th Sept 2020 No L Filter

About this image

Mars data from earlier in the evening on 20th/21st Sept when I'd forgotten to add the UV/IR filter in front of the ASI224MC- camera for 10 videos!

Shows more dark albedo detail than RGB with L filter in place because significant IR adds in to each colour, but colours are odd & cloud at bottom not so nicely rendered as previous image. S.Polar cap ends up reddish too.

Interesting comparison anyway

Martin

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