Solar Activity 12 Jun (part 1)

[brianb]

Greyed out on the 11th but three sessions on the 12th: lots of interference from mid level cloud & thickening high cloud from mid morning.

The new active region in the north west (AR 11081) is developing nicely; the CaK overview shot (made in the breakfast time session) shows evidence of flaring, the bright points were much brighter than CaK plage normally is.

0642 UT. Coronado PST CaK, prime focus, DMK41 (composite)

Flaring in AR 1081 is also evident in Ha and CaK closeups:

1003 UT. Solarscope 60, 2.5x Powermate, DMK21

1356 UT. Solarscope 60, 2.5x Powermate, DMK21

0925 UT. WO FLT 110, Lunt B1200 CaK diagonal, 2.5x Powermate, DMK21

In white light, it looks like someone's been using the Sun for target practice with a 12 bore:

0917 UT. WO FLT 110, Lunt solar wedge, 2.5x Powermate, DMK21

Meanwhile, AR 11080 near the south west limb is well developed and AR 11079 between 1080 and the limb appears to have revived:

1033 UT. Solarscope 60, 2.5x Powermate, DMK21

0918 UT. WO FLT 110, Lunt solar wedge, 2.5x Powermate, DMK21

0923 UT. WO FLT 110, Lunt B1200 CaK diagonal, 2.5x Powermate, DMK21

(continued in part 2)