Viewing archive of Wednesday, 2 August 2023 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxCM
135 -250C2.24M1.765

Sunspot regions

Region 13380

Number of
sunspots
Size Class Magn. Class Spot Location
10 -11 430 240 DKC S09W67
HMIIF
HMIBC

Solar flares on this day

C7.8 C4.2 C4.7 M1.3 M1.2 C9.3 M1.7 M1.3 M1.1 C7.9 C3.5

Region 13384

Number of
sunspots
Size Class Magn. Class Spot Location
2 -3 0 -10 AXX S18W53
HMIIF
HMIBC

Region 13386

Number of
sunspots
Size Class Magn. Class Spot Location
6 -10 160 10 ESO N13W33
HMIIF
HMIBC

Solar flares on this day

C5.6

Region 13387

Number of
sunspots
Size Class Magn. Class Spot Location
4 -2 60 10 CSO N21W10
HMIIF
HMIBC

Region 13388

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 AXX S24W19
HMIIF
HMIBC

Region 13389

Number of
sunspots
Size Class Magn. Class Spot Location
6 4 20 HSX S09W06
HMIIF
HMIBC

Region 13390

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 -10 BXO S19E06
HMIIF
HMIBC

Region 13391

Number of
sunspots
Size Class Magn. Class Spot Location
2 1 80 30 CSO N24E26
HMIIF
HMIBC

Region 13392

Number of
sunspots
Size Class Magn. Class Spot Location
13 10 120 80 DAO N08E23
HMIIF
HMIBC

Region 13393

Number of
sunspots
Size Class Magn. Class Spot Location
1 -2 10 AXX N16W03
HMIIF
HMIBC

All times in UTC

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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/04M1.0
Last geomagnetic storm2026/04/03Kp7- (G3)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 2026121 +35.1
Last 30 days101.1 +44.7

This day in history*

Solar flares
12000M2.97
22023M2.9
32000M2.66
42015M2.06
51999M1.66
DstG
11995-102G1
21984-99G2
32000-87
41959-71G1
51960-64
*since 1994

Aurora on this day in history

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