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20 April 2023
20230419 Week Rotation Today Rotation Week 20230421

 
Main Far-side SDO short-wave SDO long-wave
HMI Mag 20230420 21:58 HMI 6173Å 20230420 22:34 GHN Hα 20230419 06:38
SWAP 174Å 20230420 22:06 AIA 193Å 20230420 23:24 XRT 20230419 18:27
HMI Mag 20230420 21:58 No Time Data Available GONG Farside 20230419 12:00
No Time Data Available AIA 193Å 20230420 23:24 STEREO A 20230420 23:15
HMI Mag 20230420 21:58 AIA 94Å 20230420 23:24 AIA 131Å 20230420 23:24
AIA 171Å 20230420 23:24 AIA 193Å 20230420 23:24 AIA 211Å 20230420 23:24
HMI Mag 20230420 21:58 AIA 304Å 20230420 23:24 AIA 335Å 20230420 23:27
AIA 1600Å 20230420 23:27 AIA 1700Å 20230420 23:27 HMI 6173Å 20230420 22:34


Today's/Yesterday's NOAA Active Regions
NOAA Number
Latest
Position
Hale
Class
McIntosh Class
Sunspot Area
[millionths]
Number of Spots
Recent
Flares
13272 S24W91
(871",-388")
α/α Axx/Axx 0010/0010 02/02 -
13276 S21W14
(216",-264")
α/α Axx/Axx 0030/0010 07/03 C1.7(08:49)
C1.7(08:32)
C1.8(07:16)
C1.7(06:07)
C2.0(05:11) / -
13279 S19W42
(605",-250")
β/β Cro/Eao 0040/0100 07/14 -
13281 S21W24
(363",-268")
β/β Cao/Eai 0060/0120 10/16 -
13282 N12W30
(468",271")
β/β Fho/Eki 0530/0410 11/16 -
13283 S21W07
(109",-262")
β/β Bxo/Cro 0020/0040 03/05 -
13284 S08E28
(-445",-57")
β/β Dro/Dao 0080/0060 03/03 -
13275 N18W72
(864",319")
/α /Axx /0010 /01 -
13277 N10W91
(939",163")
/ / / / -

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

Events not associated with currently named NOAA regions: C1.9(03:04) C2.2(03:17) C1.3(04:40) C1.5(04:59) C2.5(07:37) C2.0(09:02) C2.3(09:09) C3.6(09:17) C2.4(10:47) C2.3(12:14) C1.5(14:17) C1.6(15:07) C1.7(15:43) C3.3(16:05) C2.3(22:23)

Note: The tabulated data are based on the most recent NOAA/USAF Active Region Summary issued on 20-Apr-2023 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 20-Apr-2023 23:30 UT .