Viewing archive of Monday, 1 February 1999 - Sunspot regions

It appears that the image of the visible solar disk for this day in history is missing.
Sunspot number New regionsBackground fluxMaximum fluxC
36 -230 -2B4.29C5.54

Sunspot regions

Region 8446

Number of
sunspots
Size Class Magn. Class Spot Location
8 2 170 10 DSO N17W72

Solar flares on this day

C5.5

Region 8449

Number of
sunspots
Size Class Magn. Class Spot Location
5 2 10 BXO N26W86

Region 8451

Number of
sunspots
Size Class Magn. Class Spot Location
4 20 BXO N28W40

Region 8452

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 BXO N22W30

All times in UTC

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Space weather facts

Last X-flare2026/02/04X4.3
Last M-flare2026/02/05M1.8
Last geomagnetic storm2026/01/28Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
December 2025124 +32.2
February 2026141.3 +17.3
Last 30 days123.1 +14.7

This day in history*

Solar flares
12000X1.74
22026M2.7
32025M2.7
42026M2.5
52024M2.1
DstG
11983-183G4
21961-140G2
31982-111G2
41957-87G2
52002-82G1
*since 1994

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