Viewing archive of Tuesday, 21 April 2015

Sunspot numberNew regionsBackground fluxCM
1532B9.047

Solar flares

Region Start Maximum End
2322 C1.2 03:49 03:54 04:07
2324 C1.1 05:36 05:42 05:52
2322 M1.0 07:08 07:21 07:27
2322 C2.4 09:55 10:02 10:14
2333 M2.2 10:17 10:40 10:59
2322 M2.2 11:49 11:57 12:02
2322 M4.0 15:24 15:45 15:51
2322 M2.1 16:55 17:00 17:09
2325 C5.0 20:50 20:59 21:13
2322 M1.8 21:39 21:45 21:55
2325 M1.2 21:58 22:01 22:04

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Current data suggest that it is not possible to see aurora now at middle latitudes

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Today's space weather

Auroral activity Minor Severe
High latitude 25% 35%
Middle latitude 10% 1%
Predicted Kp max 4
Solar activity
M-class solar flare 1%
X-class solar flare 1%
B6.2
Moon phase
Last Quarter

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2017/12/05Kp5 (G1)
Number of spotless days in 2017:94
Last spotless day:2017/12/09

This day in history*

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*since 1994