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Sunspot region AR13993

Number of
sunspots		 Size Class Magn. Class Spot Location
2025/02/13 1 250 HHX N15E74
2025/02/14 1 220 HHX N15E60
2025/02/15 2 220 HSX N15E47
2025/02/16 3 210 HSX N16E33
2025/02/17 2 250 HHX N15E20
2025/02/18 1 250 HHX N15E10
2025/02/19 1 250 HHX N15W04
2025/02/20 3 250 CHO N15W18
2025/02/21 3 170 CSO N15W32
2025/02/22 1 180 HAX N15W46
2025/02/23 1 180 HSX N15W59
2025/02/24 1 140 HSX N15W72
2025/02/25 1 120 HSX N15W86
2025/02/26 1 120 HSX N15W0*
C
1

The top 1 solar flares from sunspot region 13993

Start Maximum End
1C1.92025/02/1605:2305:3405:46
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AR4392 (including CMEs) 106CH 31 HSS 15Growth of Cycle 25 987Incoming & Unnumbered Active Regions 224Current Farside Activity 418
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Last X-flare2026/02/04X4.21
Last M-flare2026/03/18M2.7
Last geomagnetic storm2026/03/14Kp6 (G2)
Spotless days
Last 365 days3 days
20263 days (4%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
February 202678.2 -34.3
March 202682.4 +4.2
Last 30 days62 -53.2

This day in history*

Solar flares
12003M5.34
22003M2.33
32000M2.29
42003M2.23
52024M2.1
DstG
11989-106G3
22001-105G3
32015-99G1
41973-84G3
51990-67G2
*since 1994

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