Contains:  Solar system body or event
Sunspots (20230716) - New umbra(!) spots eat up pen(!)umbra, firstLight

Sunspots (20230716) - New umbra(!) spots eat up pen(!)umbra

Sunspots (20230716) - New umbra(!) spots eat up pen(!)umbra, firstLight

Sunspots (20230716) - New umbra(!) spots eat up pen(!)umbra

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Sunspots (20230716) - New umbra(!) spots eat up AR3372's pen(!)umbra

See this upscaled version for details!

I have never observed this before: Two new small and circular umbrae spontaneously appear within(!) the active region AR13372's penumbra! I know that bright so called[b] [/b]umbral spots[b] [/b]may appear in the deep dark umbra but I couldn't find a single mention to date of the opposite: deep dark umbrae spots spontaneously appearing within the grayish penumbra.

Seemingly, the new umbrae"eat up"  the former  penumbra!

Please zoom in and compare with my yesterday's image (20230715)!

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  • Final
    Sunspots (20230716) - New umbra(!) spots eat up pen(!)umbra, firstLight
    Original
  • Sunspots (20230716) - New umbra(!) spots eat up pen(!)umbra, firstLight
    B

B

Title: Upscaled version for details

Description: See these two umbra(!) spots eating up the former even pen(!)umbra.

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Sunspots (20230716) - New umbra(!) spots eat up pen(!)umbra, firstLight