Solar Activity 10 Mar

[brianb]

Yet another calm day with a transparent blue sky! The best weather in this part of the world is usually April/May; prolonged periods of "summer" weather are unusual at any time of the year but unheard of in early March! At least the temperatures are bearable: -5C overnight, +10C in the afternoons.

The Sun's appearance is similar to yesterday. Prominences are a bit more interesting, the filaments remain, the only significant change is a small bright plage near the NE limb.

2010 Mar 10, 1031 UT. Solarscope 60, f/5, DMK41.

2010 Mar 10, 1024 UT. PST CaK, f/10, DMK41.

2010 Mar 10, 1039 UT. Solarscope 60, f/32, DMK21.

2010 Mar 10, 1041 UT. Solarscope 60, f/32, DMK21.

2010 Mar 10, 1044 UT. Solarscope 60, f/32, DMK21.

2010 Mar 10, 1047 UT. Solarscope 60, f/32, DMK21.

2010 Mar 10, 1037 UT. Solarscope 60, f/32, DMK21.

Disc detail images to be added later (large mosaic of northern area, gonna take time to finish processing)

Transparency excellent, seeing peculiar - sometimes sharp, sometimes very blurred with frequent sharp transitions & not much in between; boiling consistently moderate. Temp +8C, wind S force 1-2.

[DarkerSky]

lovely images. Sunspot activity seems to have gone a bit quieter again. Hope the last few weeks havn't been a false dawn on that front.

Sounds like you're doing well with the weather. In complete contrast my sky is covered with cloudy anticyclonic gloominess !

[brianb]

Large image of north of disc in Ha added

2010 Mar 10, 1102 UT. Solarscope 60, f/16, DMK41.

Large version (2541 x 1479, 572 KB) here

[sheri_barri]

Stunning images!! Even a quiet sun has a lot of activity!

What do you use to process the avi? Does Registax work okay on the sun?

Looking forward to your next 'installment'!

Cheers,

Sheri

[brianb]

What do you use to process the avi? Does Registax work okay on the sun?

Surface images at high focal lengths I use Avistack which copes better with poor seeing, though the processing time is much longer than Registax. The "whole disk" images & proms are done with Registax 5 though I sometimes use Avistack for prominences.

Post production (cropping, colouring, resizing) in Photoshop Elements.