Clavius 14 March - 178 & 290 chips - binned & unbinned

[vineyard]

I was just having a quick play-around w a setup in the evening, so this was not a proper imaging session.  Here are 3 images of Clavius (STF7" f/10) - the first w an ASI178MMcool, and then the other two with an ASI290MM attached to a 2.5xPM (f/25!).  The second image is binned 1x1, the last image binned 2x2.  I didn't really spend too much time on fine focus (which at f/25 is a must I guess!).  But v pleasantly surprised by the PM images - was expecting them to be total mush.  The 2x2 binning really makes a big difference.

Cheers

 

[vineyard]

And here are a quick couple of other images from same session.

 

[vineyard]

Adding an image of Tycho from the same session.  Again not the bes, but sharing b/c looking at it made me notice the difference between Tycho & its neighbouring craters.  At first I thought oh I wonder if the Tycho impact was in a really old much larger prior crater region given how smooth the surroundings are.  And then looking at the Kaguya Lunar Atlas (which also has some good lunar geology explanations) it turned out that yes it was an impact in such an older zone, but that likely what happened is that the molten flows from the force of the Tycho impact flooded the neighbouring craters and that's why they have such smooth eroded features (since of course there isn't much erosion on the moon...doh 😂)

(PS - I also at first thought the line of craterlets at 9 o'clock was an artefact, but it actually exists running along Tycho U & Heinsius Q towards Wurzelbauer: https://quickmap.lroc.asu.edu/)

 

Edited March 21, 2022 by vineyard
added PS