Sunspot region AR11723

Number of
sunspots
Size Class Magn. Class Spot Location
2013/04/13 2 10 BXO S18E49
2013/04/14 8 80 DAC S18E36
2013/04/15 12 180 DAC S18E20
2013/04/16 23 180 DAI S17E09
2013/04/17 21 200 DAI S18W05
2013/04/18 21 190 DAI S16W16
2013/04/19 14 100 DAI S18W32
2013/04/20 9 60 CAO S19W44
2013/04/21 3 40 CSO S20W57
2013/04/22 3 30 CSO S19W70
2013/04/23 4 40 CSO S20W84
2013/04/24 4 40 CSO S20W98
C
6

The top 6 solar flares from sunspot region 11723

Start Maximum End
1C4.362013/04/2318:1018:3318:45
2C3.912013/04/2119:5920:1520:32
3C2.212013/04/1604:2604:3004:35
4C1.822013/04/1513:5814:0314:06
5C1.822013/04/1607:3007:3707:47
6C1.122013/04/2001:0301:4602:08

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Space weather facts

Last X-flare2026/02/02X1.6
Last M-flare2026/02/02M2.5
Last geomagnetic storm2026/01/28Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
December 2025124 +32.2
February 2026114 -10
Last 30 days118.1 +6.2

This day in history*

Solar flares
12025M8.88
22025M6.1
32025M4.32
42001M3.53
52025M3.1
DstG
11992-170G4
21969-161G2
31982-82G1
41989-74G2
52022-66G1
*since 1994

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