*
Friday 24th 70/64F, 12.00, very cloudy with a very gusty, westerly wind. Two distinct layers of racing cloud. The higher cloud much slower. A late start due to earlier rain.
I didn't want to miss any chance to capture AR2767. It is extremely difficult to time 4s bursts of 500 frames at 150fps [7ms] in clear sky moments.
Increase the gain for thin cloud and it blows out the brightness the moment the sky clears at both levels. There are small blue patches but nowhere near the sun!
The wind is shaking the building. Which is reaching the huge, pyramidal pier due to the storage below. It has accumulated in still weather. Now it is becoming a nuisance by shorting out the physical isolation!
Sometimes it is just the wind gusting through the observing slit. Made worse by my re-balancing trick placing the objective higher and more exposed. I'm going through the GPCs during spells of heavier cloud. Reached the 2.6x but it is exaggerating the wind movement.
3.25 First images form 13.00 as I tried to capture every chance of clarity. New, smaller spot much nearer the limb and much further south.
13.27 More images though heavily over-sharpened.
13.38 Still desperately capturing before lunchtime.
13.50 Lunch.
17.00 Back again. Still very cloudy. Fleeting views of the sun.
17.12. Still catching small breaks in the clouds. Seeing clarity improving. Still windy. Still thermally agitated.
Increase the gain for thin cloud and it blows out the brightness the moment the sky clears at both levels. There are small blue patches but nowhere near the sun!The wind is shaking the building. Which is reaching the huge, pyramidal pier due to the storage below. It has accumulated in still weather. Now it is becoming a nuisance by shorting out the physical isolation!
Sometimes it is just the wind gusting through the observing slit. Made worse by my re-balancing trick placing the objective higher and more exposed. I'm going through the GPCs during spells of heavier cloud. Reached the 2.6x but it is exaggerating the wind movement.
3.25 First images form 13.00 as I tried to capture every chance of clarity. New, smaller spot much nearer the limb and much further south.13.27 More images though heavily over-sharpened.
13.38 Still desperately capturing before lunchtime.
13.50 Lunch.
17.00 Back again. Still very cloudy. Fleeting views of the sun.17.12. Still catching small breaks in the clouds. Seeing clarity improving. Still windy. Still thermally agitated.
18.00 75/64F Late sunshine though not without cloud. Instead of the usual shaking he seeing has settle to bodily wobbling. Clarity not great.
*
No comments:
Post a Comment