Lunar craters Hahn & Berosus 13-01-17

[johnfosteruk]

Poor seeing ruins a sketch just the same as a photograph and here's the proof

These lovely two craters were right on the terminator with Gauss nearby in the shadows making a big dent, but the seeing really was poor with lots of wobbling and phasing, but I wanted a sketch so here's the embarressing result.

The observation was made in the 102 refractor and don't ask about orientation as I haven't clue. I appear to have been set up at a very strange angle!

Edited January 14, 2017 by johnfosteruk

[Size9Hex]

Good effort to get a sketch in those conditions. It was lousy seeing here too. The best view I had was at a modest 80x following some of the rays across the surface. Much above that and it just wouldnt come into focus.

[laudropb]

It's not that bad John. Bad seeing really does make sketching problematic. I have a sketch done when the seeing was very poor. I tried to identify the craters. I knew where they were on the Moon, but there is nothing that remotely looks like my sketch.

[acr_astro]

Hi John,

nice sketch of these limb craters!

Achim

[johnfosteruk]

Thanks Achim. You're very kind.