Viewing archive of Friday, 27 September 2013 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum flux
54 -90 -1B3.14B9.66

Sunspot regions

Region 11846

Number of
sunspots
Size Class Magn. Class Spot Location
1 130 -30 HSX S18W44
HMIIF
HMIBC

Region 11850

Number of
sunspots
Size Class Magn. Class Spot Location
16 2 180 110 DAO N10W18
HMIIF
HMIBC

Solar flares on this day

B5.52

Region 11852

Number of
sunspots
Size Class Magn. Class Spot Location
3 10 BXO S21W70
HMIIF
HMIBC

Region 11853

Number of
sunspots
Size Class Magn. Class Spot Location
3 20 CRO N19W80
HMIIF
HMIBC

Solar flares on this day

B9.1 B6.77

All times in UTC

<< Go to daily overview page

G2 - Moderate geomagnetic storm

Observed Kp: 6
Threshold reached: 20:16 UTC

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Oulu, Rovaniemi, Sodankylä, Utsjoki
Kirkenes, Tromsø
Murmansk, Vorkuta
Kiruna, Luleå
The solar wind speed is currently moderately high (628.2 km/sec.)
The density of the solar wind is moderate (21.22 p/cm3)
The strength of the interplanetary magnetic field is moderate (17.42nT), the direction is North (12.5nT).
The Disturbance Storm Time index predicts moderate storm conditions right now (-76nT)
The maximum X-ray flux of the past two hours is:
C7.01

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Latest alerts

20:30 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 20:08 UTC

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20:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 20:00 UTC

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18:00 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 17:00 UTC

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17:00 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 16:28 UTC

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14:15 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 13:58 UTC

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Space weather facts

Last X-flare2025/02/23X2.0
Last M-flare2025/03/26M1.0
Last geomagnetic storm2025/03/22Kp6- (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
March 2025135 -19.6
Last 30 days133.7 -19.9

This day in history*

Solar flares
12001M3.86
22000M3.34
32001M3.14
41998M2.37
52024M1.9
DstG
11976-226G4
21991-168G4
31988-154G3
41959-132G4
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*since 1994

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