5.10.19

5.10.19 AR + proms.

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Saturday 5th 47/50F. Wind and weather form the east and north east. More sunshine in one morning than all of the last few days. Still cloudy at times but enough sunshine to make it worthwhile freezing in the dome.

Trying to capture the pale AR near the middle of the solar disk. I processed one image more heavily than another. Not sure which I prefer. If either.

Gong Ha shows a couple of minor proms which I haven't looked at yet. Paused for lunch and to warm up. So now the cloud has cleared. Came back out to even more cloud!

I have been trying to dim the background by rotating the tilt plates. By slackening the thumbscrews on the fittings on both sides of the tilt plate it can be rotated independently. Then clamped again when the background is darkest. Or the Sun's surface is most evenly lit.

Afternoon : 47/54F I have repeatedly captured videos of the prom at 2 o'clock on the limb. The bright bars are difficult to suppress without losing the finer and dimmer detail. The seeing is not so good as it was this morning due to thermal shaking and trembling of the image on the monitor screen.

The differences between these four images is visible spread over 80 minutes. The sky has finally cleared now so I shall keep trying while the opportunity presents itself.

I am getting 120fps with the ZWO120MC fitted with the 2x WO Barlow. RGB24 640x480 in SharpCap. 50% of 3000 frames in Registax. Final processing in PhotoFiltre7. Came back in at 17.00 as the sun sank along with the temperature.

Click on any image for an enlargement.

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