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Montes Caucasus and Montes Apenninus


Jim Smith

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Two, five minute MONO8 .avi videos captured with Sharpcap. Best 1200 frames of 7500ish chosen by PIPP. Best 57 frames stacked by Autostakkert. Levels and curves in Affinity Photo. Noise and sharpening in Topaz Denoise AI.

Altair GPCAM3 178C 1/250s gain1600

StellaLyra 8" Classic Cassegrain on SW AZ-EQ5 GTI

MountainPass2.thumb.jpg.c4f67aa03bb46a5852533eb826248bcd.jpg

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I was observing with my 6" refractor around the same time and something that jumped out at me, and that I can't ever remember noticing before, was the crater Marco Polo indicated in the crop of your image by the arrow (21 by 28km). It drew my attention because of the radial valley's surrounding it. To me it looks like valleys are the result of the impact blast, gouging material from the surrounding terrain radially. Charles Wood in his atlas however claims it is a remnant existing prior to the Imbrium impact and creation of the appenines. If that's the case, how were the radial valleys preserved? :icon_scratch:

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1 hour ago, Jim Smith said:

Yes, it was. About 21:00 to 22:00 BST

Ok cheers. was a discussion about the seeing being good. The jet stream forecast was way off by hours.   knew it could be off because ive seen that myself. But those kind of errors make me wonder if i should even bother looking at the jet stream forecast. 

Seeing looks great as others have mentioned. 

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2 minutes ago, neil phillips said:

The jet stream forecast was way off by hours.

I seem to recall that MeteoBlue forecast 39 m/s for my location so I wasn't expecting much. I think computer modelling of complex systems like the weather has some way to go yet!

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