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740427863_Terminatorchallenge.jpg.2f4cb93182b2ce715fac5aa75b0503c8.jpg

AUGUST 23RD - A FEW HOURS BEFORE LAST QUARTER


paulastro
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Out in the early hours, a beautiful lunation (phase 56.3%, colongitude 179.6 degrees).   Beautiful telescopic views despite some cloud and poor seeing at times. I'm posting a few pics to save me having to describe it all.  All pics are crops from the one single frame taken with the SW 120ED and Olympus E-M5 Mk11, 1/100 second, 500 asa, taken at 01.48 BST on my AZ4 mount.  Of course the detail visually was far better, but the pics show the features on view.

4925926_P8231499A.thumb.jpg.eca2fe1ce494cda6dc20d92dc286c9f4.jpg   921275097_P8231499ANorthandPlatoarea.jpg.51c75e52d02e2f4274fa7381137ff4b5.jpg

 

399693219_P8231499DeslandresMaginusandClavius.jpg.7cac5903077dd590b77c227d9c0ad8d2.jpg 

 

1913459523_P8231499NofPtloemaeus.jpg.7e17cbb71490f617bab6ee90e9353736.jpg  1074962344_P8231499SouthernApennines.jpg.6a0095fa80d0818bd3de5ac80f4b719b.jpg

 

274480855_P8231499PtolemaeustoDeslandres.jpg.1bed3c8f7deb38bb910aed0dd29471d9.jpg

 

 

 

 

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I meant the one below it (Alphonsus?).  The shadow is long and narrow, reaching almost to the far wall.

According to Wikipedia the central peak is 1.5km high and I reckon about 5km wide at the base.  It must look astonishing to see it from ground level within the crater.

James

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Many thanks Chris.  As I write this I am getting everything ready to observe and photograph the Moon and then the Hyades occultations in the early hours.  Presently it's about 50% or more clear and the forecast is good so I'm hopeful.

I hope you have success yourself Chris.

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3 hours ago, maw lod qan said:

I really like the peaks that are just showing in the total darkness. Just catching the last sunlight before the terminator puts them asleep till it returns days from now.

I love those features too.  Really gives you a sense of scale.

James

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