Where are the Sunspots?July 17th, 2014 at 10:56 am by Bill Steffen under Bill's Blog, Weather
This is a Thurs. AM picture of the sun from the Solar Dynamics Obervatory (NASA). There is only one recognized sunspot on the side of the sun facing Earth and it’s so small that you probably can’t see it (click on the image to enlarge). The number of sunspots has been declining over the last 20 years. Here’s the sunspot record going back to the 1700s. From the NASA article: “Early records of sunspots indicate that the Sun went through a period of inactivity in the late 17th century. Very few sunspots were seen on the Sun from about 1645 to 1715 (38 kb JPEG image). Although the observations were not as extensive as in later years, the Sun was in fact well observed during this time and this lack of sunspots is well documented. This period of solar inactivity also corresponds to a climatic period called the “Little Ice Age” when rivers that are normally ice-free froze and snow fields remained year-round at lower altitudes. There is evidence that the Sun has had similar periods of inactivity in the more distant past. The connection between solar activity and terrestrial climate is an area of on-going research.”
Also, check out the “heart rainbow“. Here’s noctilucent clouds over Scotland at 2:28 am. Nice Northern Lights pic. from British Columbia. Here’s this week’s Sky at a Glance. Typhoon Rammusun intensifying and heading toward S. China. Significant freeze in central South America could affect coffee prices (precursor to an earlier frost and early snow in the Great Lakes (Oct./Nov.)?