Region
Mag Class
Spot Class
Location
Spot Count
Area
AR 2871
ALPHA
AXX
S28W65
1
10

HMI Intensity

HMI Magnetogram

AIA 171

AIA 304

AIA Composite

Evolution of AR 2871

Noteworthy Events

M1.8 (9/23/2021 @ 15:28 UTC)
M2.8 (9/23/2021 @ 04:42 UTC)

Notes regarding AR 2871

The return of old AR 2860. Reassigned AR 2871 on September 18, 2021.

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