Showing posts with label flare. Show all posts
Showing posts with label flare. Show all posts

12 Sept 2017

14 May 2013

Solar flare and cycle 24

The BBC website has news of the solar flare on Monday. See http://www.bbc.co.uk/news/science-environment-22525233 .  As we are around the peak of solar cycle 24 - the jury is still out on whether or not we will have a second peak in the cycle larger than the one of Nov 2011 - such flares can be expected. They can occur at any time though. 

Of course the media, including the BBC, likes to "hype up" the dangers of extreme flares: talk of wiping out satellites and power grids etc. All these things can occur, but we have better ways of protecting from these risks and with some advanced warning the dangers of black-outs can be reduced.

In many ways, I prefer the quieter years in the sunspot cycle: working DX with QRP is more challenging on the higher HF bands and, as I mentioned a week ago, WSPR will really be useful in winkling out the openings that fleetingly may occur.

20 Jan 2010

Solar Flare and Aurora

Yesterday, satellites picked up the strongest solar flare in almost 2 years. The M2 class eruption came from an old sunspot (number 1039) behind the sun's eastern limb. There is a chance of HF blackouts and auroral conditions today Jan 20th. See http://spaceweather.com/