12820

S21W72 Data 0000-00-00

Long Jupiter -25 area 6

Region 12820 [S21W72] decayed slowly and quietly
report(past month only)

12820

S21E22 Data 2021-04-23

Long Jupiter -126 area 90

New region 12820 [S21E22] emerged quickly on April 23
report(past month only)

12820

S21E08 Data 2021-04-24

Long Jupiter -111 area 180

New region 12820 [S21E08] emerged quickly on April 23 and developed further on April 24 when it was numbered by SWPC. C flares are possible.
report(past month only)

12820

S21W04 Data 2021-04-25

Long Jupiter -98 area 180

Region 12820 [S21W04] developed slowly and was mostly quiet.
report(past month only)

12820

S22W18 Data 2021-04-26

Long Jupiter -84 area 220

Region 12820 [S22W18] developed further and produced a number of B flares. C flares are possible, as is a minor M class event. The proximity of the leader spot to the largest trailing spot of AR 12821 could lead to a more complex situation and more energetic flares.
report(past month only)

12820

S21W31 Data 2021-04-27

Long Jupiter -69 area 140

Region 12820 [S21W31] decayed quietly losing spots and area.
report(past month only)

12820

S22W44 Data 2021-04-28

Long Jupiter -55 area 70

Region 12820 [S22W44] decayed slowly and quietly.
report(past month only)

12820

S21W57 Data 2021-04-29

Long Jupiter -42 area 20

Region 12820 [S21W57] decayed slowly and produced a few B flares.
report(past month only)

active longitudes
A -437-
B -189-
C -234-
D -371-
E -484-
for 2021-04-29