5.6.19

5.6.19 Cloudy, windy and spotless H-a.

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Wednesday 5th June. 84/75F In/Out. A warm, sunny but rather cloudy day. 

Captured a few videos of smudges [filaments?] on the solar disk with the ZWO120MC camera using SharpCap. High plates of cloud didn't help. 

Tried up to 3000 frames at 80ps 24RGB 960x720. Setting Limit at 5% and 10% in Registax6 made no obvious difference.

This re-coloured image shows the smudges but I had to push it hard in Registax wavelets to bring them out. The original H-alpha videos were very pale pink and soft on the laptop screen during capture. Somewhat reminiscent of blotchy human skin.  

AWR lost the Home parking position this time despite calibration and entering SETPK before leaving the parking position. It went too far north in RA before stopping. I checked the indicated LST on the AWR IH2 paddle screen against an online LST calculator and it was correct this time.

The absence of solar surface detail, or even a nice big prominence, makes the effort of waiting for cloud to clear hardly worth the effort. The prevailing wind has been blowing into the open slit of the dome. Which only adds to the problems of trying to image what is hardly worth recording.

I keep meaning to organise some proper earthing on the mounting. The AWR drives have various plugs with trailing green leads. So I shall have to fit some car type, crimping rings to go over motor fixing screws as earthing points. Then I just need a thick cable down to the ground and some sort of earthing spike. Crimped ring ends fitted. Next the ground spike and earth cable.


Click on any image for an enlargement.

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