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21 December 2021
20211220 Week Rotation Today Rotation Week 20211222

 
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
12906 S29W69
(797",-463")
α/α Axx/Hrx 0010/0020 01/01 -
12907 S21W38
(562",-328")
βγ/βγ Dai/Dki 0150/0250 13/15 -
12908 S21W23
(357",-324")
β/β Cai/Eai 0100/0240 10/13 - / C1.0(16:34)
C1.4(15:57)
C1.4(13:48)
12909 S21W11
(174",-323")
β/β Cso/Cao 0100/0120 05/04 C5.5(01:44)
/ C1.4(20:23)
12910 N14W77
(922",242")
α/α Axx/Hsx 0010/0020 02/02 -
12911 N20E02
(-32",363")
α/α Hrx/Hax 0020/0050 02/03 -
12912 S12E40
(-615",-180")
α/α Hsx/Hsx 0030/0040 01/01 -
12913 S28E20
(-295",-434")
α/- Axx/--- 0010/---- 01/-- -
12905 S12W79
(936",-197")
/ / / / -

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

Events not associated with currently named NOAA regions: C2.8(03:40) C3.3(04:48) C4.0(05:58) C4.9(07:06) C1.0(13:45) C2.0(15:44) C4.9(17:35) C4.9(19:02) M1.1(07:43) M1.4(11:31) C1.4(17:15) C1.5(17:32) C1.6(20:45) C1.1(22:47) M1.8(11:12)

Note: The tabulated data are based on the most recent NOAA/USAF Active Region Summary issued on 21-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 21-Dec-2021 20:30 UT .