Solar Activity 22 May (proms)

[brianb]

A (too) warm, humid day with a hazy but reasonably transparent sky & moderate seeing.

Some nice quiescent prominences on view as well.

South west limb:

0932 UT. Solarscope 60, x2 barlow, DMK21

South east limb:

0927 UT. Solarscope 60, x2 barlow, DMK21

East limb:

0928 UT. Solarscope 60, x2 barlow, DMK21

And the crowning glory, on the north west limb:

0930 UT. Solarscope 60, x2 barlow, DMK21

1624 UT. Solarscope 60, x2 barlow, DMK21

Transparency moderate (uniform haze). Seeing moderate with some boiling. Temperature 22C (am), 20C (pm). Wind S force 3-4 (am), N force 2 (pm).

[barkis]

These Images are so nice. Not a technical description, but I see them as quite beautiful.

I also like the filamentary detail in the ejections.

I have no Idea on exposure times on these, but quite fast I would say.

Ron.

[brianb]

I have no Idea on exposure times on these, but quite fast I would say.

1/30 sec is usual for prominences - I use the gain to adjust the sensitivity; with the DMK21 and IC Capture the gain comes out around 500 for faint prominences, 350-400 for bright ones.

Going longer than 1/30 sec requires good seeing.