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17 December 2021
20211216 Week Rotation Today Rotation Week 20211218

 
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
12905 S12W23
(374",-184")
α/α Axx/Axx 0010/0000 01/01 -
12906 S29W16
(235",-456")
β/β Cso/Dao 0060/0120 09/04 -
12907 S20E14
(-222",-315")
βγ/βγ Dai/Dki 0180/0260 23/12 -
12908 S20E31
(-473",-317")
β/β Dao/Dko 0210/0300 10/06 -
12909 S21E46
(-656",-336")
β/β Dao/Dao 0150/0150 05/06 -
12910 N13W28
(447",238")
β/- Cro/--- 0020/---- 06/-- -
12911 N19E58
(-783",328")
β/- Cro/--- 0020/---- 03/-- -

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

Events not associated with currently named NOAA regions: C1.5(03:25) C1.2(04:01) C1.3(04:50) C1.4(05:06) C1.3(06:18) C1.2(06:45) C1.1(08:31) C2.3(12:55) C1.0(14:22) C1.5(15:14) C1.5(15:57) C1.5(17:39) M1.2(00:39) C3.3(15:19) C2.3(19:58) C2.9(20:29) C3.0(23:35)

Note: The tabulated data are based on the most recent NOAA/USAF Active Region Summary issued on 17-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 17-Dec-2021 20:30 UT .