Viewing archive of Thursday, 20 June 2013 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
128 21 1B6.57C2.856

Sunspot regions

Region 11770

Number of
sunspots
Size Class Magn. Class Spot Location
1 80 HSX S15W12
HMIIF
HMIBC

Region 11772

Number of
sunspots
Size Class Magn. Class Spot Location
16 3 120 10 DAI S22W12
HMIIF
HMIBC

Region 11773

Number of
sunspots
Size Class Magn. Class Spot Location
20 -3 120 30 DAI N03E10
HMIIF
HMIBC

Region 11774

Number of
sunspots
Size Class Magn. Class Spot Location
3 -1 50 -20 HAX S19E02
HMIIF
HMIBC

Region 11775

Number of
sunspots
Size Class Magn. Class Spot Location
17 -1 400 -10 DKC S26E20
HMIIF
HMIBC

Solar flares on this day

C1.88 C1.95

Region 11776

Number of
sunspots
Size Class Magn. Class Spot Location
9 8 40 30 DAO N11W09
HMIIF
HMIBC

Solar flares on this day

C1.08 C1.07 C1.27

All times in UTC

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Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
Last geomagnetic storm2026/04/03Kp7- (G3)
Spotless days
Last 365 days3 days
20263 days (3%)
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Monthly mean Sunspot Number
March 202685.9 +7.7
April 2026107.7 +21.8
Last 30 days100 +44.8

This day in history*

Solar flares
12013M9.34
22024M5.47
32001M3.41
42000M1.63
52000M1.5
DstG
12001-271G4
21990-190G3
31978-114G4
41982-110G2
51959-88G1
*since 1994

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