Viewing archive of Sunday, 17 October 1999 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot numberNew regionsBackground fluxMaximum fluxC
169 -201B7.3C3.899

Sunspot regions

Region 8728

Number of
sunspots
Size Class Magn. Class Spot Location
29 9 290 -20 EAO N23W26

Region 8729

Number of
sunspots
Size Class Magn. Class Spot Location
9 1 20 BXO N13W25

Region 8731

Number of
sunspots
Size Class Magn. Class Spot Location
62 35 1000 150 FKC N12W03

Region 8732

Number of
sunspots
Size Class Magn. Class Spot Location
19 7 210 40 EAO N20W12

Region 8734

Number of
sunspots
Size Class Magn. Class Spot Location
1 -1 0 -10 AXX N17E08

Region 8735

Number of
sunspots
Size Class Magn. Class Spot Location
9 10 BXO N18E40

<< Go to daily overview page

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!

64%

Space weather facts

Last X-flare2017/09/10X8.2
Last M-flare2020/05/29M1.1
Last geomagnetic storm2020/04/20Kp5 (G1)
Spotless days
Last 365 days308 days
2020149 days (77%)
Current stretch3 days

This day in history*

Solar flares
12004M6.7
22004M6.2
32004M5.4
42005M5.0
52005M3.2
ApG
1200042G3
2201533G2
3200531G1
4200414
5200313
*since 1994

Social networks