Observation by Geof Lewis: Mars (IR-RGB) 22 Sept 2020

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Geof Lewis

Observer

Geof Lewis

Observed

2020 Sep 21 - 23:47

Uploaded

2020 Sep 23 - 12:35

Objects

Mars

Equipment

C14 XLT
ASI290MM
Astronomic IRRGB filters
x2 TV Powermate
AP1200

Exposure

13ms (75 fps), with gain adjusted to maintain consistent histogram

Location

Norfolk

Target name

Mars

Title

Mars (IR-RGB) 22 Sept 2020

About this image

Another night of good seeing. This is an IR-RGB image using 10% of x4 IR applied as luminance to a x4 RGB stack. Each of the 4 IRRGB AVIs were selected as best 30% in AS3!, wavelet sharpened in Registax6, then de-rotated in WinJupos, with a furthe mild wavelet sharpening in R6, before final tweaks and annotation added in Affinity Photo.
The image is displayed south up. The Argyre impact basin surrounded by rugged massifs which form concentric and radial patterns may be seen below and to the right of the south polar cap. The darker regions straddling the equator (left to right) of Sinus Sabaeus, Sinus Meridiani, Margaritifer Sinus and Aurorae Sinus can be seen above the lighter red Aeria & Chryse regions. Clouds are visible above the north pole region and towards the Mars limb on the right of the image.

Files associated with this observation

2020-09-22-0047_2-GDL(IR10%)-LRGB_R6_AFP(annotated).jpg (90.2 kB)

Like this image

Bill Leatherbarrow, Ron Arbour, Jeremy Shears, David Basey, Philip Masding, Chris Dole, Mr Leonard Entwisle, Mark Phillips, Martin Lewis, Lee Proctor, Mr John William Hughes, Graham Winstanley, Callum Wingrove, Peter Mulligan, Nick Hewitt, Dean Norris, Rob Davies

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