Viewing archive of Saturday, 4 February 2017 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot numberNew regionsBackground fluxMaximum flux
22 -170A8.0B1.67

Sunspot regions

Region 12629

Number of
sunspots
Size Class Magn. Class Spot Location
1 40 HAX N16W78

Region 12632

Number of
sunspots
Size Class Magn. Class Spot Location
6 30 -30 CAO N16W50

Solar flares on this day

B1.6

Region 12633

Number of
sunspots
Size Class Magn. Class Spot Location
2 -1 10 BXO N15W64

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/10/26Kp5 (G1)
Number of spotless days in 2020:15
Current stretch spotless days:13

This day in history*

Solar flares
12012M8.7
22003M2.5
32005M1.0
42003M1.0
52003C6.0
ApG
1200443G2
2200029G2
3199921G1
4200320G1
5200519
*since 1994

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