Contains:  Solar system body or event
Active Regions AR13639, 13644 & 13646 - 18th April 2024, hughsie

Active Regions AR13639, 13644 & 13646 - 18th April 2024

Acquisition type: Lucky imaging
Active Regions AR13639, 13644 & 13646 - 18th April 2024, hughsie

Active Regions AR13639, 13644 & 13646 - 18th April 2024

Acquisition type: Lucky imaging

Equipment

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Acquisition details

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Description

AR13639 (Class EAI)
Located N30E12, this region contains sixteen sunspots and has reduced in size over the last 24 hours to approximately 880 million square kilometres. It released no flares today, however, it did produce an M4.02 class flare on 15th April 2024.

AR13644 (Class DSO)
Positioned just off the eastern limb at N13E49, this small region is made up of two sun spots and has increased in size to 364 million square kilometres. It has not produced any flares to date.

AR13646 (Class CRO)
Finally, we have a small grouping of eight sunspots just north of AR13644 at N22E47. Like AR13644, this region has increased in size in the last 24 hours to some 210 million square kilometres. At this time it has not produced any flares.

Comments

Histogram

Active Regions AR13639, 13644 & 13646 - 18th April 2024, hughsie

In these public groups

Narrowband Solar imaging

In these collections

Sol