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22 December 2021
20211221 Week Rotation Today Rotation Week 20211223

 
Main Far-side SDO short-wave SDO long-wave
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Today's/Yesterday's NOAA Active Regions
NOAA Number
Latest
Position
Hale
Class
McIntosh Class
Sunspot Area
[millionths]
Number of Spots
Recent
Flares
12907 S21W50
(699",-330")
βγ/βγ Dai/Dai 0200/0150 14/13 C2.4(19:31)
C8.8(17:56)
C3.4(10:14)
C4.0(05:15)
C1.5(04:36)
/ C4.9(22:29)
12908 S20W37
(553",-310")
β/β Dsi/Cai 0100/0100 18/10 C2.9(10:04) / -
12909 S21W24
(371",-323")
α/β Hax/Cso 0080/0100 03/05 - / C1.0(13:45)
C4.9(07:06)
C3.3(04:48)
12910 N15W91
(941",251")
β/α Cro/Axx 0020/0010 03/02 -
12911 N20W10
(159",364")
α/α Hrx/Hrx 0020/0020 01/02 -
12912 S12E27
(-434",-175")
α/α Hsx/Hsx 0030/0030 01/01 -
12913 S28E07
(-105",-431")
α/α Axx/Axx 0010/0010 01/01 -
12914 S17E11
(-178",-255")
β/- Bxo/--- 0010/---- 02/-- -
12915 N16E24
(-382",298")
β/- Dso/--- 0030/---- 03/-- -
12916 S18E70
(-872",-291")
α/- Hsx/--- 0100/---- 01/-- -
12905 S12W91
(953",-203")
/ / / / -
12906 S29W83
(846",-469")
/α /Axx /0010 /01 -

Class (HH:MM) -Today
Class (HH:MM) -Yesterday

Events not associated with currently named NOAA regions: C5.7(00:12) C2.0(11:03) M1.3(06:54) C4.0(05:58) C2.0(15:44) C4.9(17:35) C4.9(19:02) C3.9(20:36) M1.1(07:43) M1.4(11:31)

Note: The tabulated data are based on the most recent NOAA/USAF Active Region Summary issued on 22-Dec-2021 00:30 UT . The greyed out and light-blue entries are values from the previous day. Slashed cells indicate that the active region has no spots. The latest positions of the active regions are given in both heliographic and heliocentric co-ordinates. The region positions are valid on 22-Dec-2021 20:30 UT .