SpaceWeatherLive.com
Real-time auroral and solar activity

Sunspot region AR8720

Number of
sunspots		 Size Class Magn. Class Spot Location
1999/10/04 4 20 BXO N14E65
1999/10/05 4 30 CSO N13E52
1999/10/06 4 60 CSO N13E42
1999/10/07 15 70 DSO N13E28
1999/10/08 16 50 DAO N13E14
1999/10/09 16 50 DSO N13E01
1999/10/10 20 30 BXO N14W11
1999/10/11 8 20 BXO N14W27
1999/10/12 4 10 BXO N13W38
1999/10/13 2 10 AXX N12W50
1999/10/15 2 10 BXO N17W78
C
10

The top 10 solar flares from sunspot region 8720

Start Maximum End
1C7.171999/10/0407:2908:1608:44
2C4.141999/10/0704:2204:4305:15
3C4.091999/10/0317:0017:0517:10
4C4.071999/10/0723:4423:5500:13
5C4.041999/10/0505:3605:5106:08
6C2.511999/10/0810:0710:2110:36
7C2.271999/10/0615:3715:4416:02
8C1.841999/10/0604:3804:4404:50
9C1.281999/10/0314:2414:2914:34
10C1.081999/10/0412:3812:4312:53
Back to top

Latest news

Latest forum messages

AR 3637, 3638, 3643 87Unproven theories 341Space Weather Memes 338Filaments and prominences 55Growth of Cycle 25 433
More topics

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

SpaceWeatherLive