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Lunar craters Atlas and Hercules


acr_astro

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Hi all,

on Saturday evening I could do a lunar charcoal/chalk sketch. This time on the fourth day of the moon, the duo Atlas and Hercules attracted me. On the sketch North is up, East is left.

Telescope: Celestron Nexstar 127 SLT

Eyepiece: TS HR Planetary 7mm

Technique: charcoal and chalk on black sketching cardbox

Date & Time: Jan 24th, 2015; 1920-2010 CET

I depicted the craters Atlas, Hercules, Atlas E, Hercules F and Keldysh.post-34493-0-98030000-1422279219_thumb.j

Then I remembered having done an Atlas sketch already last spring. So I went to the archives and did a comparison of the two sketches. Both sketches have been done with my 5” Celestron MAK. What we can see is the different lighting conditions based on moon age and libration. Furthermore, the seeing conditions last time have been much better than on Saturday – I could not go up to 300x yesterday but had to leave it with the 7mm EP.

Hope you enjoy it.

Clear skies!

Achim

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