New Delhi, July 13: While Earth is boiling over the pan of ‘Global Warming’, another heater is set to hit our Mother Earth it seems… with the new Sunspot which was tracked rotating towards Earth. NASA has tracked the sunspot called Active Region 12665 between July 5 and 11.
NASA's Solar Dynamics Observatory (SDO) captured this sunspot on the move in a video released on Wednesday. While the sunspot on display in the video appears small in comparison with the rest of the sun (NASA describes it as looking like freckles), the dark centre area alone is bigger than Earth. The video includes a small dot that shows the size of Earth in relation to the sunspot.
The SDO captured the imagery used in the video between July 5 and 11. "This sunspot is the first to appear after the sun was spotless for two days, and it is the only sunspot group at this moment," NASA said.
Sunspots are relatively common, but as the sun approaches the solar minimum; the least active part of its 11-year cycle the frequency of sunspots decreases. The sunspot filmed by SDO this week was the first seen in two days. It is currently the only visible sunspot on the surface of the sun.
According to NASA’s Solar Dynamics Observatory, this sunspot could cause the solar flare. These are bursts of radiation from the sun’s surface, related to the spots. They can cause electromagnetic disturbances on the Earth and interfere with radio communication and power grids. They can also create visible auroras (which are associated with the way the particles meet Earth’s atmosphere).
The SDO maintains that it is “too early to predict just what it will do with regard to flares.” Between Sept. 1-2, 1859, Earth experienced one of the strongest geomagnetic storms — in what was called the Carrington Event.
What actually is a ‘Sunspot’?
Sunspots are patches on the surface of the sun that appear darker than their surroundings due to the loss of surface tension caused by magnetic flux, an intense concentration of complex magnetic fields. Sunspots appear as dark blotches on the surface of the sun and are cooler than the surrounding area.