Sunspot region AR 4564

Sunspot AR 4564 is a small, magnetically basic active region visible on the Sun. It contains 3 spots and covers 30 millionths of the solar hemisphere. This region has produced no significant flares. Current flare probabilities are C 5%, M 1% and X 1%. Its heliographic latitude is N4°, Earth-facing longitude 58° and Carrington longitude 202°.

Sunspot location on the solar map

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Selected map type: AIA 171 Å

Sunspot properties

Region number	4564
First observed	30 October 2026 at 01:37
Sunspot type	Bxo
Magnetic class	B
Area	30 MSH
Spot count	3
Heliographic extent	5 degrees
Latitude	4°
Longitude	58°
Carrington longitude	202
Status

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
2026-10-30	30	3	Bxo	-	N04E58
2026-10-29	10	1	Axx	-	N05E68

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