Viewing archive of Friday, 8 October 1999 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
170 -141C1.43C9.196

Sunspot regions

Region 8713

Number of
sunspots
Size Class Magn. Class Spot Location
2 0 BXO S14W45

Region 8714

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 BXO N13W36

Region 8716

Number of
sunspots
Size Class Magn. Class Spot Location
2 -7 190 -10 HSX N21E05

Region 8718

Number of
sunspots
Size Class Magn. Class Spot Location
4 -1 30 -10 CSO S28W50

Region 8719

Number of
sunspots
Size Class Magn. Class Spot Location
3 -2 80 -10 CSO S22W02

Region 8720

Number of
sunspots
Size Class Magn. Class Spot Location
16 1 50 -20 DAO N13E14

Solar flares on this day

C2.51

Region 8721

Number of
sunspots
Size Class Magn. Class Spot Location
6 -1 70 10 DSO S19E05

Region 8722

Number of
sunspots
Size Class Magn. Class Spot Location
8 -8 40 -20 DRO N14W20

Region 8723

Number of
sunspots
Size Class Magn. Class Spot Location
3 2 20 CSO N20E39

Region 8724

Number of
sunspots
Size Class Magn. Class Spot Location
4 10 BXO N18W38

Region 8725

Number of
sunspots
Size Class Magn. Class Spot Location
1 40 -20 HSX S25E41

Region 8726

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 HSX S21E14

Region 8727

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 BXO N18E53

All times in UTC

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Space weather facts

Last X-flare2026/02/04X4.21
Last M-flare2026/03/28M1.3
Last geomagnetic storm2026/03/25Kp5+ (G1)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
February 202678.2 -34.3
March 202685.2 +7
Last 30 days85.2 +9.8

This day in history*

Solar flares
12001X2.45
22014X1.45
32023X1.2
42024M3.2
52001M3.13
DstG
11959-154G3
21979-129G3
31989-125G3
41957-121G4
51984-86G2
*since 1994

Aurora on this day in history

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