18.10.20

18.10.2020 AR2776 with cloud.

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Sunday 18th 11am 50/47F. Rather cloudy in two layers. From the west. Weak sunshine from a milky sky.

First slew to the sun is pointing upwards at 45°! ASCOM[AWR] has randomly reversed Declination Drive Direction overnight again.

Had a quick look in white light with the Vixen 90 + Lunt wedge + Solar Continuum +20mm. AR2776 is looking very obvious at 50x. 

Tried 2x GPC, Mono8, 800x600, 7.0ms, 150fps, Gain 146. Seeing is

complete mush or clouded over.
Changed to 1.6x GPC. Gain reduced to 90. Seeing
fairly steady but horribly misty. AR2776 has a Y-shaped light bridge and a filament but can't get it sharp enough with this thin, high cloud. Changed to 2x GPC for Gain 80 when clear of cloud. Still no images.

12.15 Trying for white light view of AR2776 but the high cloud is softening and dimming the image. 90mm x1000mm, x2 GPC, ZWO 174MM. Too cloudy. White overcast.

12.44 Finally some clear sunshine! Stacked the Orion 2x Shorty Barlow on the 174 for some H-a trials with the 2x GPC. Cloud!!

15.20 First prom image recognizable as such.

15.36 I had changed to the PST etalon for the prom so tried it on AR2776. Instant detail and contrast. I have overcooked the processing for effect.

Still nothing with the Lunt B1200S2.





16.00 Beginning to see detail from the B1200. Nothing like the PST BF though.

16.30 Reverted to PST BF.


 

16.30  The same image but processed differently.

The bright, solar flare is clearly seen in both images.

 

 

 

 

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