Viewing archive of Thursday, 23 September 2021 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxCM
75 -10 -2B1.3M1.8911

Sunspot regions

Region 12871

Number of
sunspots
Size Class Magn. Class Spot Location
11 4 210 -40 DAO S28E10
HMIIF
HMIBC

Solar flares on this day

B2.8 B3.1 C5.3 M2.8 B4.2 B6.0 B5.3 M1.89 C1.0

Region 12872

Number of
sunspots
Size Class Magn. Class Spot Location
15 6 120 50 CAI N17E01
HMIIF
HMIBC

Region 12873

Number of
sunspots
Size Class Magn. Class Spot Location
6 1 10 -70 BXO N26W48
HMIIF
HMIBC

Region 12874

Number of
sunspots
Size Class Magn. Class Spot Location
1 -1 10 AXX S23W40
HMIIF
HMIBC

Region 12875

Number of
sunspots
Size Class Magn. Class Spot Location
3 10 BXO S31W48
HMIIF
HMIBC

Solar flares on this day

B2.3

<< 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!

54%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/03/28X1.1
Last M-flare2024/04/25M1.0
Last geomagnetic storm2024/04/19Kp7 (G3)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2024104.9 -19.8
Last 30 days133.9 +26.6

This day in history*

Solar flares
12014X1.99
22001M3.98
32004M3.25
42003M1.84
52004M1.3
ApG
1200333G1
2201227G1
3199826G1
4202118G1
5199517G1
*since 1994

Social networks