Viewing archive of Thursday, 15 September 2011 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
167 230 -2B8.57C6.6111

Sunspot regions

Region 11287

Number of
sunspots
Size Class Magn. Class Spot Location
4 1 170 90 DSO S27W78

Region 11289

Number of
sunspots
Size Class Magn. Class Spot Location
9 -1 400 50 CHO N24W25

Region 11290

Number of
sunspots
Size Class Magn. Class Spot Location
4 -4 30 -40 CRO S13W38

Region 11292

Number of
sunspots
Size Class Magn. Class Spot Location
2 -3 30 -20 CRO N08E24

Region 11293

Number of
sunspots
Size Class Magn. Class Spot Location
3 20 10 CSO N18W38

Region 11294

Number of
sunspots
Size Class Magn. Class Spot Location
7 2 50 30 CSO S17W02

Region 11295

Number of
sunspots
Size Class Magn. Class Spot Location
4 2 50 20 CSO N20E51

Region 11296

Number of
sunspots
Size Class Magn. Class Spot Location
3 1 60 10 DSO N26E55

Solar flares on this day

C1.51

Region 11297

Number of
sunspots
Size Class Magn. Class Spot Location
4 40 DAO S16W52

Solar flares on this day

C6.61 C3.28 C3.8

Region 11298

Number of
sunspots
Size Class Magn. Class Spot Location
4 40 CSO N16E52

All times in UTC

<< Go to daily overview page

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-flare2026/02/04X4.3
Last M-flare2026/02/05M1.3
Last geomagnetic storm2026/01/28Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
December 2025124 +32.2
February 2026141.3 +17.3
Last 30 days123.1 +14.7

This day in history*

Solar flares
12000X1.74
22026M2.7
32025M2.7
42026M2.5
52024M2.1
DstG
11983-183G4
21961-140G2
31982-111G2
41957-87G2
52002-82G1
*since 1994

Social networks