Viewing archive of Thursday, 27 April 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
136 551 -1B5.38M1.8891

Sunspot regions

Region 13285

Number of
sunspots
Size Class Magn. Class Spot Location
5 1 240 120 CAO S17W09
HMIIF
HMIBC

Region 13286

Number of
sunspots
Size Class Magn. Class Spot Location
3 1 10 BXO S11W02
HMIIF
HMIBC

Region 13288

Number of
sunspots
Size Class Magn. Class Spot Location
29 24 380 240 EKI S22W04
HMIIF
HMIBC

Solar flares on this day

C2.7 B8.4 C1.1 C1.0 C1.1 C1.3 M1.8 C1.8 C1.0 C2.5 C1.1 C2.5

Region 13289

Number of
sunspots
Size Class Magn. Class Spot Location
5 2 180 30 DAO N20E44
HMIIF
HMIBC

Solar flares on this day

C3.0 C2.5 B9.7 C1.5

Region 13290

Number of
sunspots
Size Class Magn. Class Spot Location
3 10 -30 BXO N24W59
HMIIF
HMIBC

Region 13291

Number of
sunspots
Size Class Magn. Class Spot Location
20 16 30 10 CRO N09W02
HMIIF
HMIBC

Region 13292

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 HRX N14E62
HMIIF
HMIBC

All times in UTC

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Space weather facts

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%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 202694.2 +8.3
Last 30 days94.7 +35.4

This day in history*

Solar flares
12024M4.3
22025M4.2
32002M2.07
42023M1.5
52001M1.47
DstG
11973-134G4
21981-129G1
31971-121G4
41961-118G3
51990-104G2
*since 1994

Aurora on this day in history

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