Viewing archive of Monday, 4 October 2021 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum flux
29 -90 -1A9.96B9.23

Sunspot regions

Region 12877

Number of
sunspots
Size Class Magn. Class Spot Location
1 30 HSX S21W0*
HMIIF
HMIBC

Solar flares on this day

B3.2 B7.7 B9.4 B1.6 B1.6

Region 12880

Number of
sunspots
Size Class Magn. Class Spot Location
8 2 160 -70 ESO N31W21
HMIIF
HMIBC

Solar flares on this day

B2.4 B1.1

Region 12882

Number of
sunspots
Size Class Magn. Class Spot Location
1 250 70 HHX N14E63
HMIIF
HMIBC

Solar flares on this day

B1.6 B2.1

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!

SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2025/01/04X1.85
Last M-flare2025/02/23M4.9
Last geomagnetic storm2025/02/19Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
January 2025137 -17.5
February 2025151.4 +14.4
Last 30 days148.3 -13.8

This day in history*

Solar flares
12025M4.9
22024M2.6
32014M1.62
42024M1.5
52023M1.5
DstG
11988-97G2
21982-92G2
31990-82G1
41973-75G2
51957-73G2
*since 1994

Social networks