Libration - north of Mare Frigoris (David Haviland)

Contains: Solar system body or event

Libration - north of Mare Frigoris

This one was an interesting shot. When shooting the moon, after I have finished imaging the items on my short list of that night, I'll wander around looking for other high contrast areas to image. This one reached out to me. Later when processing and looking over the Autostakkert produced images - comically, for a second or two, I looked at this one and asked "Where the hell am I?" I was dead serious. For a moment I couldn't place where I was but realized the mare (ocean) at the bottom was Mare Frigoris, north of Mare Imbrium. But my Sky&Telescope handy moon map only showed me about three craters up there and it was squished - it let me down - with almost no detail in that area. I had to dig through a photo Atlas book and the online Moon Atlas to further explore where I was. I also wanted to know why I was seeing so much. A fellow local Selenophile (Sonny Manley) found the Scientific Visualization Studio and sent it my direction. There, the libation of the Moon is clear and you can find out what it was on certain dates. It was as if that morning, the Moon was showing me her left shoulder while hiding the southern region which explains why my earlier shot of Tycho, Maginus, and Clavius on the same morning looked "squished" - it's because they were. I noted some of the larger craters but I'll spare the sizes and depths this time. Shot was taken July 12th with a CGE 11 using a QHY5III178M. Best 20% of 4000 frames were taken using FireCapture and stacked in Autostakkert 3, with processing and annotation in PS-CC.

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