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17 September 2023
20230916 Week Rotation Today Rotation Week 20230918

 
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
13425 N24W79
(856",364")
β/β Cro/Cso 0030/0040 06/08 -
13429 N11W36
(552",86")
βγ/βγδ Dai/Dai 0090/0090 16/13 -
13430 S17W88
(911",-280")
α/β Hrx/Cso 0030/0030 01/05 -
13433 N28W03
(44",340")
α/α Hsx/Hsx 0080/0090 01/01 -
13434 N08W28
(445",27")
α/α Axx/Hsx 0010/0020 02/03 -
13435 N10E55
(-771",97")
β/- Dso/--- 0090/---- 02/-- -
13424 N17W90
(912",276")
/ / / / -
13427 S27W82
(842",-444")
/ / / / -
13431 S08W37
(570",-226")
/ / / / -

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

Events not associated with currently named NOAA regions: C1.1(00:19) C1.4(06:25) C1.3(10:29) C1.3(12:52) C3.6(15:55) C5.0(05:09) C5.1(05:11) C2.1(07:06) C2.6(07:36) C2.1(11:56) C2.8(13:13) C2.8(13:22) C1.4(14:35) C1.6(14:54) C1.7(15:05) C2.6(15:49) C3.7(15:54) C1.4(18:34) M3.4(05:28) M3.3(05:30)

Note: The tabulated data are based on the most recent NOAA/USAF Active Region Summary issued on 17-Sep-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 17-Sep-2023 23:30 UT .