Solar Activity 05 Jan

[brianb]

A fresh morning with mostly clear skies, occasional lumpy cloud, cool with a strong northerly wind.

The Sun's disc is threatening to become spotless - I was just able to see the trailing spot of AR1039 in white light, and there was a faint patch of faculae, but CaK was needed to show it convincingly

2010 Jan 05, 1122 UT. 60mm @ f/16.7, Lunt CaK B1200, DMK41

Still just about there in Ha too

2010 Jan 05, 1130 UT. Solarscope 60 @ f/16, DMK41

But there was nothing else of any significance on the solar disk.

Proms, however, were located at all four "diagonal quarters"

2010 Jan 05, 1141 UT. Solarscope 60 @ f/32, DMK21

2010 Jan 05, 1138 UT. Solarscope 60 @ f/32, DMK21

2010 Jan 05, 1139 UT. Solarscope 60 @ f/32, DMK21

2010 Jan 05, 1133 UT. Solarscope 60 @ f/16, DMK41

Transparency good, seeing fairly poor, some smearing & significant boiling.

[Starman]

That looks busy in the north-east Brian and consequently, promising too.

Great captures. I had a window of opportunity this morning but after two 4am to bed sessions, didn't take it!

[malp]

Lovely capture, particularly like the white light.

[brianb]

Thanks guys ... but the "white light" is calcium K line ....

The busy proms in the NE may herald the reappearance of AR11035 (?) Interesting is that there is very little prom activity over AR11039 as it goes "round the corner", the "mushroom cloud" prom in the SW quadrant is a fair way south of the AR.

[Tim]

How do the proms move Brian? Does the sun itself rotate, or does the active surface move with currents or something?

Big difference with the CaK, I can see why you guys get so excited about those now.

Thanks

Tim

[NickH]

Nice work Brian...

Not seen the sun for 3 days now...and not imaged it for a while longer

[Tim]

Never mind, the rotation process has been explained on another thread, just read it