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The Sun Today : Updated April 21, 2019

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Latest Space Weather News and Updates
April 19, 2019 @ 19:55 UTC
Solar Update
Region 2738 is now rotating off the visible disk and will soon be out of direct Earth view. The formerly "active" region previously numbered 2736 from when it formed on March 20th, spent the past almost 2 weeks quiet and non threatening. The only other visible sunspot, AR 2739, is a simple bi-polar region and not a threat for noteworthy solar flares. Solar activity should remain at very low levels in the short term. Image below by SDO/HMI.

April 12, 2019 @ 02:15 UTC
2738 Update
Region 2738 continues to transit the visible solar disk and remains a large, magnetically simple sunspot. How large is the main dark core? Below is a nice size comparison. Solar activity should continue at very low levels in the short term. Image by SDO/HMI.


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Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center.
UPDATED 2019 April 21 1230 UTC

.24 hr Summary...
Solar activity was very low. Region 2739 (N06W74, Axx/alpha) was stable
and absent of significant flare activity. No Earth-directed CMEs were
observed in available satellite imagery.

.Forecast...
Solar activity is expected to remain very low throughout the forecast
period (21-23 Apr).
[Report of Solar-Geophysical Activity]

NOAA SUNSPOT SUMMARY | SolarHam Sunspot Summary

A - Alpha (single polarity spot).
B - Beta (bipolar spot configuration).
G - Gamma (atypical mixture of polarities).
BG - Beta-Gamma (mixture of polarities in a dominantly bipolar configuration).
D - Delta (opposite polarity umbrae within single penumbra).
BD - Beta with a Delta configuration.
BGD - Beta-Gamma with a Delta configuration.

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