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Giant sunspot convulses but all quiet on the aurora front … for now
Sunspot region 1967 is so big I could photograph it through a “cloud filter” Sunday afternoon Feb. 2. The group is visible with the naked eye properly shielded with a safe solar filter such as a #14 welder’s glass. Details: 350mm lens at f/11, ISO 200 and 1/2000″. Credit: Bob King
What a crazy sunspot cycle. Weeks go by with only a few tiny spots freckling the sun, then all at once a monster group big enough to swallow 10 Earths rounds the eastern limb and we’re back in business. I’m happy to report we’ve got another behemoth snapping and crackling with M-class (moderately strong) flares – Active Region 1967, a hunk-a-hunk of burnin’ funk that rounded the solar limb a week ago.(…)
Read the rest of Giant sunspot convulses but all quiet on the aurora front … for now (477 words)
© Bob King for Universe Today, 2014. |
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Post tags: AR 1967, aurora, flare, sun, sunspots
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Source: http://www.universetoday.com/108958/giant-sunspot-convulses-but-all-quiet-on-the-aurora-front-for-now/
