-
08/15/2008 | The K7RA Solar Update
Our Sun is still not producing any sunspots. As mentioned in previous bulletins, the peak of the last Solar Cycle was a double peak, so perhaps we are in the midst of an extended bottom. Sunspot numbers for August 7-13 were 0, 0, 0, 0, 0, 0 and 0 with a m
Learn More -
08/08/2008 | The K7RA Solar Update
As mentioned in last week's report, Carl Luetzelschwab, K9LA, is filling in for your regular reporter Tad Cook, K7RA. For the reporting period August 1-7, solar activity was at very low levels and the geomagnetic field was at quiet levels. Solar activity
Learn More -
08/01/2008 | The K7RA Solar Update
July ended with no sunspots at all -- save for three days, July 18-20, when one weak sunspot group appeared and faded from view. Sunspot numbers for those days were 11, 12 and 11. Sunspot numbers for July 24-30 were 0, 0, 0, 0, 0, 0 and 0 with a mean of 0
Learn More -
07/25/2008 | The K7RA Solar Update
For several days over the past week, we saw a couple of sunspots -- but just like other recent dying Solar Cycle 23 spots, they faded quickly. This group, lasting from July 18-20, was number 1000. No sign of Solar Cycle 24 in recent memory, just a couple
Learn More -
07/18/2008 | The K7RA Solar Update
If today is like yesterday and the day before that, it will be the 26th consecutive day with no sunspots. Think this is bad? At the last solar minimum, there were only four days showing any sunspots between September 5 and October 24, 2006.
Learn More -
07/11/2008 | The K7RA Solar Update
Another week and still no sunspots. The 3-month moving average for daily sunspot numbers that we began reporting toward the end of Solar Cycle 23 seemed to retrospectively suggest that solar minimum occurred last fall. The daily average for the 3-month pe
Learn More -
07/03/2008 | The K7RA Solar Update
This week's bulletin is presented a day earlier than usual, due to the Independence Day holiday on Friday. The weeks seem to drag on with no sunspots in sight. An image from helioseismic holography on Tuesday shows a spot on our
Learn More -
06/27/2008 | The K7RA Solar Update
Recent days graced by sunspots were short lived. June 10-June 13 saw a single sunspot group, followed by two days with no spots then a week of spots from June 16-22. During that week, the sunspot number was 11 every day, the lowest non-zero sunspot number
Learn More
Search for Amateur Radio News
