Sunspot region AR 4549

Sunspot AR 4549 is a moderate-sized, magnetically complex active region visible on the Sun. It contains 20 spots and covers 180 millionths of the solar hemisphere. This region has produced no significant flares. Current flare probabilities are C 75%, M 35% and X 5%. Its heliographic latitude is N10°, Earth-facing longitude -13° and Carrington longitude 215°.

Sunspot location on the solar map

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Selected map type: AIA 171 Å

Sunspot properties

Region number	4549
First observed	5 October 2026 at 01:48
Sunspot type	Dai
Magnetic class	BGD
Area	180 MSH
Spot count	20
Heliographic extent	8 degrees
Latitude	10°
Longitude	-13°
Carrington longitude	215
Status	f

Flare activity

No flares detected.

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

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