Solar Activity 25 Aug

[brianb]

Sorry for delay in posting ... I was busy due to an unexpected burt of good weather & preparing this report got pushed down the priority list.

Weather at last cleared but it fooled me - a highly unsatisfactory morning session (much drifting high cloud) was all I thought I was going to get, but it cleared nicely in the afternoon & I ended up redoing everything.

Solar activity is generally low.

1416 UT. Coronado PST CaK, prime focus, DMK41

1348 UT. Solarscope 60, 0.5x focal reducer, DMK41

AR 11100, just a few small spots & pores, is approaching the west limb; there is a notable thick filament to its south:

1411 UT. WO FLT 110, Lunt solar wedge, 2.5x Powermate, DMK21

1354 UT. Solarscope 60, 2.5x Powermate, DMK21 (two frame mosaic)

A new spot group, AR 11101, has appeared round the east limb, there is filamentary activity associated with this too:

1410 UT. WO FLT 110, Lunt solar wedge, 2.5x Powermate, DMK21

1352 UT. Solarscope 60, 2.5x Powermate, DMK21 (two frame mosaic)

And here are closeups of the main prominences:

1355 UT. Solarscope 60, 2.5x Powermate, DMK21

1356 UT. Solarscope 60, 2.5x Powermate, DMK21

1358 UT. Solarscope 60, 2.5x Powermate, DMK21

Transparency good. Seeing poor with substantial boiling. Temperature 19C, wind calm.