Viewing archive of Tuesday, 21 September 2004 - Sunspot regions

It appears that the image of the visible solar disk for this day in history is missing.
Sunspot numberNew regionsBackground fluxMaximum fluxC
33 -260 -1B1.4C7.551

Sunspot regions

Region 10672

Number of
sunspots
Size Class Magn. Class Spot Location
7 80 10 DSO N05W71

Region 10673

Number of
sunspots
Size Class Magn. Class Spot Location
18 3 310 10 DHO S13E09

Region 10674

Number of
sunspots
Size Class Magn. Class Spot Location
4 10 BXO S10W23

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/10/26Kp5 (G1)
Number of spotless days in 2019:242
Current stretch spotless days:15

This day in history*

Solar flares
11999M7.4
22003M4.2
32001M2.8
42002M2.0
52003M1.2
ApG
1200339G1
2200113
3199613
4199912
5201410
*since 1994

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