Viewing archive of Friday, 17 September 1999 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot numberNew regionsBackground fluxMaximum fluxCM
144 -92 1B5.7M2.1481

Sunspot regions

Region 8690

Number of
sunspots
Size Class Magn. Class Spot Location
23 -7 440 140 EKI N16W62

Solar flares on this day

M2.1

Region 8692

Number of
sunspots
Size Class Magn. Class Spot Location
16 -3 170 10 ESO S26W41

Solar flares on this day

C3.1

Region 8693

Number of
sunspots
Size Class Magn. Class Spot Location
1 -1 30 HSX N13W44

Region 8695

Number of
sunspots
Size Class Magn. Class Spot Location
3 30 -10 CSO N21W04

Region 8699

Number of
sunspots
Size Class Magn. Class Spot Location
13 -10 220 ESO N22W39

Solar flares on this day

C1.5

Region 8700

Number of
sunspots
Size Class Magn. Class Spot Location
25 7 140 10 EAO N14E31

Solar flares on this day

C2.1 C1.7

Region 8702

Number of
sunspots
Size Class Magn. Class Spot Location
2 0 BXO N22E28

<< 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!

12%

Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2020/02/19Kp5 (G1)
Number of spotless days in 2020:72
Last spotless day:2020/03/30

This day in history*

Solar flares
12002M6.1
21999M5.4
32001M2.0
42003M1.9
52001M1.6
ApG
1199459G3
2200328G1
3200526G2
4200123G1
5200022G1
*since 1994

Social networks