19.10.20 AR2776 Sun in better seeing conditions.

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Monday 19th Bright, calm and clear with better seeing conditions. No high cloud today.

10.20 ASCOM[AWR] made a complete mess of the first slew to the sun as usual.Though it had not reversed Dec Drive Dir today. As it had done for the last two days.

10.48 51/46F, B1200S2 + 2x GPC on AR2776. Rather odd image. Adjusting etalon for sweet spot and more even illumination. Seeing more detail on the monitor.

11.03 Adjusted etalon for a more natural appearance.

 

12.03 Better seeing needs less processing.

High cloud appearing now.

 
My wife insisted on some colour.

 

White light using the 90mm f/10, Lunt 1.25" wedge and Baader SC filter.

150/1500 used with Barlow and Lunt solar wedge.

 

 

 

Duplicated GPCs for more enlargement. 2x and 2.6x in tandem on the camera snout.

It needs a delicate balance not to overcook these images. There is a bridge on one side of the spot. This easily vanishes with sharpening and darkening in ImPPG. These effects usually occur together and often asymmetrically.

 It clouded over during lunch. 13.30 onwards.

More colour! The image shows the Lunt solar prism mounted on the FT Focuser on the 6". I left the D-ERF in place. This works fine provided I don't add the Baader Solar Continuum filter. The red light from the Baader D-ERF filter is turned black by the green SC filter. 

 

 

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