Sunspot region AR12817

Number of
sunspots
Size Class Magn. Class Spot Location
2021/04/19 8 60 BXO N18W45
2021/04/20 13 140 DAI N18W60
2021/04/21 7 180 DAO N18W76
2021/04/22 5 140 CSO N18W92
2021/04/23 5 140 CSO N18W0*
BC
4812

The top 10 solar flares from sunspot region 12817

Start Maximum End
1C8.62021/04/2220:0020:1120:20
2C4.32021/04/2209:1409:2109:41
3C3.72021/04/2210:4010:4911:03
4C2.42021/04/2323:0823:1223:16
5C2.32021/04/2207:1607:2307:27
6C2.32021/04/2322:3922:5422:57
7C2.32021/04/2322:5723:0123:06
8C1.72021/04/2205:5005:5706:02
9C1.62021/04/2101:1801:2902:37
10C1.42021/04/2210:0310:0810:14

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-flare2025/01/09M1.1
Last geomagnetic storm2025/01/04Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
December 2024154.5 +2
January 2025150.8 -3.7
Last 30 days151.4 +32.3

This day in history*

Solar flares
12023M5.67
22023M3.1
32023M2.4
42000M2.24
52013M1.74
DstG
11976-146G3
21989-129G2
31992-95G1
42000-80G1
51959-77G1
*since 1994

Social networks