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Domain: ips.gov.au
Stories and comments across the archive that link to ips.gov.au.
Stories · 2
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The Sun Has First Spotless Month Since 1913
radioweather writes "August 2008 has made solar history. As of 00 UTC September 1st 2008 (5PM PST) we just witnessed the first spotless calendar month since June 1913.This was determined according to sunspot data from NOAA's National Geophysical Data Center, which goes back to 1749. In the 95 years since 1913, we've had quite an active sun, but activity has been declining in the last few years. The sun today is a nearly featureless sphere and has been spotless for 42 days total, but this is the first full calendar month since 1913 for a spotless sun. And there are other indicators of the sun being in a funk. Australia's space weather agency recently revised their solar cycle 24 forecast, pushing the expected date for a ramping up of cycle 24 sunspots into the future by six months." As one of the links above indicate, there was a "sunspeck" reported August 21/22, though. Reader MikeyTheK adds a link to a story at Daily Tech on the spotless record. -
Sun Storm To Cause Massive Auroral Display
glengyron writes "SMH reports a major geomagnetic storm will cause a spectacular display of shimmering coloured lights in the night sky of the Southern Hemsiphere. Read more here or check out the press release from the Australian Space Weather Agency (pdf)."