20 August 2021
⇐20210819 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210821⇒

NOAA
3 Active Regions
12857
12858
12855

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's/Yesterday's NOAA Active Regions
NOAA Number
Latest
Position
Hale
Class
McIntosh Class
Sunspot Area
[millionths]
Number of Spots
Recent
Flares
12857 N14W84
(915",216") 		α/ Axx/ 0010/ 01/ -
12858 N13W29
(449",115") 		β/β Cro/Cro 0030/0020 04/06 -
12855 N13W62
(817",159") 		/ / / / -

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

Events not associated with currently named NOAA regions: C3.0(15:50) C2.3(16:41) C1.4(21:30)

Note: The tabulated data are based on the most recent NOAA/USAF Active Region Summary issued on 20-Aug-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 20-Aug-2021 23:30 UT .