Viewing archive of Thursday, 21 January 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
134 -221 1C8.71M1.231

Sunspot regions

Region 8437

Number of
sunspots
Size Class Magn. Class Spot Location
1 70 HSX N11W64

Region 8439

Number of
sunspots
Size Class Magn. Class Spot Location
34 -10 290 -10 FAI S24W28

Region 8440

Number of
sunspots
Size Class Magn. Class Spot Location
39 -10 300 FAI N19W24

Solar flares on this day

C7.37

Region 8442

Number of
sunspots
Size Class Magn. Class Spot Location
7 -4 100 30 CAO N24W55

Region 8443

Number of
sunspots
Size Class Magn. Class Spot Location
1 -2 0 -10 AXX S17E45

Region 8444

Number of
sunspots
Size Class Magn. Class Spot Location
2 0 AXX N19E05

Region 8445

Number of
sunspots
Size Class Magn. Class Spot Location
2 0 BXO N12E10

All times in UTC

<< Go to daily overview page

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

100%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/11/06X2.39
Last M-flare2024/11/10M4.2
Last geomagnetic storm2024/11/09Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024186 +19.6
Last 30 days163.1 +14.2

This day in history*

Solar flares
12004X3.67
22013X1.62
32024M4.2
42002M3.47
52001M3.33
DstG
12004-263G4
21991-144
32000-95G2
41998-93
51975-67G2
*since 1994

Social networks