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Mars-Neptune Conjunction, Dec 7


Cosmic Geoff

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I imaged the conjunction around 17.30hrs GMT with my Startravel and ASI120MC camera on the SLT mount (+fixed wood tripod). The image scale with my C8 would clearly have been too large.

The image, processed in Registax6 from 200 frames, is shown below. The image is shown horizontally flipped to match the telescopic view with star diagonal.  I puzzled for some time over what exactly I had captured, but the centre dot is Mars (overexposed) the faint dot at lower L is Neptune, and the brighter dot at upper R is the star 81 Aqr.  I also took a run which has Mars only slightly overexposed, and looking very small, and inevitably not capturing Neptune.

 

Mars-Nep22_21_02.jpg

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