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OBSERVING BLOG by Sean Walker
Solar activity is ramping up
Sunspot AR 1087 flares in hydrogen light between 13:56 (top) and 14:01 UT, July 11th.
Sean Walker
Today, AR 1087 is crackling with minor flares, and those of you with any kind of solar filter will be treated to a respectable show whenever it's clear. (For a real treat, check out this video recorded by the Solar Dynamics Observatory.)
I've recently dusted off my trusty Coronado PST (which hardly saw any action over the past two years) and have been rewarded with some excellent prominences and swirling filaments. Every clear day has been worth taking a solar break over the past two weeks alone; last week, AR 1084 paraded across the solar surface, presenting a nearly perfect spiral of plasma traveling along its unusually stable magnetic field.
Prominences and filaments (prominences that cross the solar disk) have been bigger lately too; over the July 4th weekend, I was able to wow my friends and relatives with views of a large prominence as it slowly detached from the solar disk and blew away into space.
The picturesque sunspot AR 1084 recorded in white light using a Baader Herschel Wedge on July 5th.
Sean Walker
Posted by Sean Walker, July 12, 2010
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all comments (2 total)
grammar
Posted by Roger
July 16, 2010 At 07:47 PM PDT
What is this: "from it's unusually"?
Please fix ...
TIA
Images of the sun
Posted by John Barrett
July 18, 2010 At 09:58 AM PDT
I'd like to thank Sean Walker for his efforts and work,I went thru most of the links, and was amazed and astonished of what I found. Truly educational and informative and a must see for anyone.
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comments (2)