Solar Activity 11 Apr

[brianb]

Summer has arrived (where was spring?); very thin high cloud didn't help but failed to ruin the view.

CaK disc view shows continuing low level of activity.

0855 UT. PST CaK, f/10, DMK41

White light, disc blank except for small faint faculae at north east & west limbs.

Ha disc activity (large image) dominated by filaments. The "birthmark" or "forest" filament on the north west limb appears almost unchanged:

0943 UT. Solarscope 60 @ f/16, DMK21

There is a bright medium sized prominence on the N limb

0959 UT. Solarscope 60 @ f/32, DMK21

a tallish but faint prominence on the ENE limb

0951 UT. Solarscope 60 @ f/16, DMK21

a group of moderately tall but fairly faint prominences on the SSW limb

0946 UT. Solarscope 60 @ f/16, DMK21

and a very bright eruptive prominence on the NE limb

1002 UT. Solarscope 60 @ f/32, DMK21.

Transparency moderate with very thin cirrostratus, varying in thickness. Seeing mostly poor but with some moderate intervals. Temp 17C, wind SW force 1-2.

[sheri_barri]

Absolutely stunning Brian! Your work gives something to aspire too!!

Cheers!!

Sheri

[JAO]

Superb! Thanks for sharing

[barkis]

I can't contribute any technical appraisal of these Images.

I can only say how pleasing they are, and what an incite they give to our stars processes. They are inspirational too.

Ron.