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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 1, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2278 | S08 | W04 | 01 | 0010 | Alpha | Feb 2, 2015 | Feb 8, 2015 | Feb 22, 2015 |
| № 2277 | N08 | E33 | 32 | 0480 | Beta-Gamma | Feb 4, 2015 | Feb 11, 2015 | Feb 25, 2015 |
| № 2276 | S07 | W16 | 03 | 0010 | Beta | Feb 1, 2015 | Feb 8, 2015 | Feb 21, 2015 |
| № 2275 | S17 | W80 | 05 | 0080 | Beta | Jan 27, 2015 | Feb 3, 2015 | Feb 16, 2015 |
| № 2273 | S03 | W69 | 02 | 0020 | Alpha | Jan 28, 2015 | Feb 4, 2015 | Feb 17, 2015 |
| № 2272 | N12 | W09 | 01 | 0020 | Alpha | Feb 1, 2015 | Feb 8, 2015 | Feb 22, 2015 |
| № 2271 | N17 | W70 | 06 | 0220 | Beta | Jan 28, 2015 | Feb 4, 2015 | Feb 17, 2015 |
| № 2268 | S10 | W44 | 23 | 0480 | Beta-Gamma | Jan 30, 2015 | Feb 5, 2015 | Feb 19, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to February 2015. The gray background is the average SSN index.
