Viewing archive of Thursday, 18 April 2013 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
86 -30B4C9.342

Sunspot regions

Region 11719

Number of
sunspots
Size Class Magn. Class Spot Location
1 -2 50 HSX N09W91
HMIIF
HMIBC

Solar flares on this day

C2.36 C9.33

Region 11721

Number of
sunspots
Size Class Magn. Class Spot Location
2 -3 100 -20 CSO S17W75
HMIIF
HMIBC

Region 11722

Number of
sunspots
Size Class Magn. Class Spot Location
10 4 90 DAO S20W62
HMIIF
HMIBC

Region 11723

Number of
sunspots
Size Class Magn. Class Spot Location
21 190 -10 DAI S16W16
HMIIF
HMIBC

Region 11724

Number of
sunspots
Size Class Magn. Class Spot Location
2 -2 20 -20 CSO S26E07
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 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-flare2024/12/08X2.2
Last M-flare2024/12/24M1.0
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024115.2 -37.3
Last 30 days120.1 -38.2

This day in history*

Solar flares
12011M5.77
21998M1.83
32001M1.76
42001M1.41
52011M1.22
DstG
11988-85
21998-57
31978-57G2
42014-49
52002-39
*since 1994

Social networks