Contains:  Solar system body or event
Mars in IR on October 3, 2020, JDJ

Mars in IR on October 3, 2020

Acquisition type: Lucky imaging

Equipment

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Acquisition details

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Description

Imaged Mars in RGB and IR (using 685nm and 850 nm IR pass filters) on the morning of October 3, 2020. The conditions were ok with average seeing and transparency. Mars was only a few days from closest approach and showing a disc ~22.5 arcsecs in diameter at magnitude of -2.5. The 685nm and 850 nm pass filters gave similar results with perhaps a bit more contrast from the 850 nm pass filter.

Using Winjupos ephemerides and the Sky&Telescope Mars profiler, I was able to identify a few areas visible in the image. The south polar cap is the most obvious surface feature at the bottom of the image, and the the northern polar hood can be seen at the top of the image. The dark feature to the right of the central meridian is Syrtis Major. To the left of the central meridian is Sinus Meridiani.

Imaged with a C8 Evo, ZWO ADC, Baader IR 685nm pass filter, and ZWO ASI290MM. Imaging train was configured to give ~F/20. Image capture using Firecapture with gain set at 300 and an exposure of 4 ms. Stacking in AutoStakkert3 (best 10% of ~40000 frames captured over 240 seconds). Wavelet sharpening in Registax6. De-rotated and combined 3 images in Winjupos. Clean up and resizing to match RGB images taken with an ASI224MC in GIMP.

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  • Final
    Mars in IR on October 3, 2020, JDJ
    Original
  • Mars in IR on October 3, 2020, JDJ
    B

B

Description: Original version = 685 nm pass filter
Version B = 850 nm pass filter

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Mars in IR on October 3, 2020, JDJ

In these collections

Mars