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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 23, 2015. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 2309 | N11 | W11 | 03 | 0010 | Beta | Mar 23, 2015 | Mar 30, 2015 | Apr 13, 2015 |
| № 2308 | N17 | W46 | 04 | 0020 | Beta | Mar 21, 2015 | Mar 27, 2015 | Apr 10, 2015 |
| № 2307 | S18 | E24 | 05 | 0020 | Beta | Mar 26, 2015 | Apr 2, 2015 | Apr 15, 2015 |
| № 2306 | S18 | W66 | 02 | 0010 | Beta | Mar 19, 2015 | Mar 26, 2015 | Apr 9, 2015 |
| № 2305 | S08 | E58 | 10 | 0220 | Beta-Gamma | Mar 28, 2015 | Apr 4, 2015 | Apr 18, 2015 |
| № 2303 | N20 | W02 | 04 | 0100 | Beta | Mar 24, 2015 | Mar 31, 2015 | Apr 14, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to March 2015. The gray background is the average SSN index.
