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Solar Activity 13 Mar

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Author Topic: Solar Activity 13 Mar  (Read 117 times)
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« on: March 14, 2010, 01:51:09 am »

Wow, what a day! Nearly missed it too, just a short clear interval after lunch ...

AR1054 has developed into a spot group visible with the naked eye (using eclipse glasses for safety, of course) - the first naked eye spot for a long time. The whole of the north of the solar disc is festooned with filaments of varying size & shape. But all of this is eclipsed by an exceptionally large & bright prominence on the west limb, clearly the same feature which was a prominent filament yesterday.

2010 Mar 13, 1351 UT. Solarscope 60 @ f/5, DMK41. This is a single shot view (processed seperately for disc & prominences).

2010 Mar 13, 1405 UT. Solarscope 60 @ f/16, DMK41; 6 pane mosaic. There is a full size version (2684 x 1489 pixels, 620 KB) of this  here.

AR 1054 in red, white & blue:

2010 Mar 13, 1410 UT. Solarscope 60, f/16, DMK21.

2010 Mar 13, 1431 UT. WO FLT 110 @ f/28, Baader solar film (ND5.0) & solar continuum filter, DMK21.

2010 Mar 13, 1437 UT. WO FLT 110 (stopped to 100mm) @ f/31, Lunt B1200 CaK diagonal, DMK21.

A nice prominence group on the NE limb:

2010 Mar 13, 1412 UT. Solarscope 60 @ f/16, DMK21.

And that monstrous thing hanging off the west limb

1. High contrast version

2010 Mar 13, 1415 UT. Solarscope 60 @ f/16, DMK21.

2. Low contrast version (single shot with surface)

2010 Mar 13, 1359 UT. Solarscope 60, f/32, DMK21.

Finally the CaK whole disc image:

2010 Mar 13, 1346 UT. Coronado PST CaK @ f/10, DMK41.

Transparency very good (whilst the clearance lasted), seeing fairly good but with some wind vibration affecting the FLT 110. Temp 11C, wind N force 3-4 gusting 5.
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« Reply #1 on: March 14, 2010, 11:39:04 pm »

Excellent images and report Brian, that is a huge looking prominence alright- the weather has been mostly good for you recently.
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Martin Mc Kenna
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« Reply #2 on: March 15, 2010, 04:47:30 pm »

Splendid images Brian, that prominence chain over the horizon looks incredible. You are sure being treated to some wonderful sights on the Sun recently. I'm sure the best is yet to come this year. Your'e going to be a busy man!
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