Astronomy, Near Space, and Robotics
Where near space and robotics intersect
Wednesday, April 17, 2019
Sunspot AR2738, 17 April 2019
The sunspot is still visible, it hasn't been carried to the far side of the sun by rotation. This time I counted pixels to determine the sunspot has a diameter of 18,500 miles. That makes it 2.3 times larger than Earth.
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