Sunspot region AR 4579

Sunspot AR 4579 is a moderate-sized, magnetically simple active region visible on the Sun. It contains 1 spots and covers 170 millionths of the solar hemisphere. This region has produced 1 C-class flares. Current flare probabilities are C 10%, M 1% and X 1%. Its heliographic latitude is N15°, Earth-facing longitude 58° and Carrington longitude 350°.

Sunspot location on the solar map

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Selected map type: AIA 171 Å

Sunspot properties

Region number	4579
First observed	14 November 2026 at 08:22
Sunspot type	Hsx
Magnetic class	A
Area	170 MSH
Spot count	1
Heliographic extent	2 degrees
Latitude	15°
Longitude	58°
Carrington longitude	350
Status	f

Flare activity

Flare class	Begin time (UTC)	Peak time (UTC)	End time (UTC)	Location	Duration
C2.8	2026-11-14 21:16	2026-11-14 21:27	2026-11-14 21:38	N17E70	11 minutes

Sunspot evolution

These graphs show how the region’s area and visible spot count changed over time.

Area

Area is measured in millionths of the solar hemisphere (MSH); growth can indicate increasing magnetic complexity.

Spot count

The spot count records the visible spots in the region at each observation.

Detailed history

Date	Area (MSH)	Spot count	Classification	flares	Location
2026-11-15	170	1	Hsx	-	N15E58
2026-11-14	20	1	Hsx	C2.8, 21:16-21:38	N15E72

Acknowledgments

We thank the teams behind the Solar Dynamics Observatory (SDO), including the HMI, AIA and EVE teams, for continuous solar monitoring.

We also thank National Aeronautics and Space Administration (NASA), Goddard Space Flight Center (GSFC), National Oceanic and Atmospheric Administration (NOAA) for supporting solar science and public data access.

Additional event data are provided by NASA’s DONKI (Database of Notifications, Knowledge, Information), with records of flares, CMEs and geomagnetic storms.

Observation Settings