Viewing archive of Sunday, 18 October 1998 - Sunspot regions

It appears that the image of the visible solar disk for this day in history is missing.
Sunspot number New regionsBackground fluxMaximum fluxCM
136 292 1C2.29M3.4422

Sunspot regions

Region 8358

Number of
sunspots
Size Class Magn. Class Spot Location
10 -5 170 50 CAO N16W55

Solar flares on this day

M1.17 M3.44 C3.76

Region 8360

Number of
sunspots
Size Class Magn. Class Spot Location
8 -10 390 50 DKO S19W52

Region 8361

Number of
sunspots
Size Class Magn. Class Spot Location
9 3 30 CSO N14W38

Region 8362

Number of
sunspots
Size Class Magn. Class Spot Location
2 1 30 HRX N20E46

Region 8363

Number of
sunspots
Size Class Magn. Class Spot Location
14 7 100 60 DAO N25E17

Region 8364

Number of
sunspots
Size Class Magn. Class Spot Location
4 10 BXO N18E24

All times in UTC

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Space weather facts

Last X-flare2026/03/30X1.4
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 202688.4 +10.2
Last 30 days88.4 +14.9

This day in history*

Solar flares
12022M9.67
22000M5.89
32001M3.06
42000M2.9
52000M2.71
DstG
12001-387G4
21960-191G4
31989-100G2
41990-88
52003-78G2
*since 1994

Aurora on this day in history

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