Viewing archive of Saturday, 17 August 2013 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxCM
96 -81 1B5.57M4.7442

Sunspot regions

Region 11817

Number of
sunspots
Size Class Magn. Class Spot Location
13 -9 140 -120 EAI S21W44
HMIIF
HMIBC

Solar flares on this day

B8.43

Region 11818

Number of
sunspots
Size Class Magn. Class Spot Location
16 1 330 30 DKI S07W19
HMIIF
HMIBC

Solar flares on this day

B9.04 C1.86 C1.22 C1.2 M4.73 M2.1

Region 11819

Number of
sunspots
Size Class Magn. Class Spot Location
4 -2 10 -10 BXO S16W32
HMIIF
HMIBC

Region 11820

Number of
sunspots
Size Class Magn. Class Spot Location
7 20 -10 CRO S13E25
HMIIF
HMIBC

Region 11822

Number of
sunspots
Size Class Magn. Class Spot Location
3 -2 20 -10 CRO S08E44
HMIIF
HMIBC

Region 11823

Number of
sunspots
Size Class Magn. Class Spot Location
1 130 10 HSX S07E57
HMIIF
HMIBC

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-flare2025/12/08X1.1
Last M-flare2025/12/09M1.5
Last geomagnetic storm2025/12/04Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 202591.8 -22.8
December 2025160.6 +68.8
Last 30 days108 +10.6

This day in history*

Solar flares
12024M6.46
22023M2.3
32002M1.63
42024M1.6
52024M1.5
DstG
11983-61G1
21982-60G2
31997-56
41985-54
52003-51G1
*since 1994

Social networks