Solar Activity 10 Apr

[brianb]

Transparency better today (intermittently) but seeing bad.

CaK whole disk shot shows a fairly quiet Sun

0923 UT. PST CaK @ f/10, DMK41

though close inspection shows AR 1061, very close to the limb, still bearing a tiny spot. I show the CaK view as the white light image was not so clear (in fact I couldn't see the spot at all at the eyepiece!)

1211 UT. Lunt 60 / CaK B1200, x2 barlow, DMK21

In Ha, the north of the disc (large image) shows a notable filament near the meridian in the northern hemisphere, and a small plage & filaments corresponding to the defunct AR 1060

1153 UT. Solarscope 60, x2 barlow, DMK21

but the highlight is the huge quiescent filament near the north west limb

1151 UT. Solarscope 60, x2 barlow, DMK21

There is a complex prominence group at the south south west limb

1155 UT. Solarscope 60, x2 barlow, DMK21

and a medium sized, bright, complex prominence on the north north east limb

1159 UT. Solarscope 60, x2 barlow, DMK21

Transparency moderate but with interference from cirro/altocumulus. Seeing poor, deteriorating to bad. Temp 15C, wind SW force 4-5.