Sunspot region AR8700

Number of
sunspots
Size Class Magn. Class Spot Location
1999/09/13 2 30 HSX N12E81
1999/09/14 13 140 EAO N14E71
1999/09/15 17 140 EAO N14E59
1999/09/16 18 130 EAO N14E45
1999/09/17 25 140 EAO N14E31
1999/09/18 30 170 DAI N13E20
1999/09/19 31 110 DSI N13E07
1999/09/20 26 70 DRI N12W05
1999/09/21 18 50 DSO N12W19
1999/09/22 16 40 CSO N13W33
1999/09/23 13 40 CRO N13W47
1999/09/24 6 10 BXO N12W61
1999/09/25 8 10 BXO N13W75
CM
81

The top 9 solar flares from sunspot region 8700

Start Maximum End
1M1.111999/09/1603:2303:3103:35
2C3.461999/09/1814:1414:2114:33
3C3.171999/09/1511:5612:0312:21
4C3.111999/09/1317:2317:3217:38
5C3.091999/09/1705:0505:1205:42
6C2.511999/09/1713:5313:5714:02
7C2.431999/09/1903:0903:1603:24
8C1.741999/09/1521:0421:0521:06
9C1.671999/09/2207:0407:1007:18

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!

No Ads on SWL Pro!
No Ads on SWL Pro! Subscriptions
Donations
Support SpaceWeatherLive.com! Donate
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
Last geomagnetic storm2026/04/03Kp7- (G3)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 2026114.3 +28.4
Last 30 days102.4 +48.5

This day in history*

Solar flares
12001X3.14
22002X1.17
32023M2.83
42002M2.34
52000M1.23
DstG
11990-281G4
21982-137G3
31957-124G3
41959-122G4
51960-81G3
*since 1994

Aurora on this day in history

Discover more observations in our archive!

Social networks