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ARs 13663/13691 and 13664/13697


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sr20240511.jpg

https://solarwww.mtk.nao.ac.jp/mitaka_solar/wl-fulldisk-newsunspot/image/2024/sr20240511.jpg - AR 13664 (S18) on the disk on its first rotation on May 11, 2024.

sr20031029.jpg

https://solarwww.mtk.nao.ac.jp/mitaka_solar/wl-fulldisk-newsunspot/image/2003/sr20031029.jpg - AR 10486 (S18) on the disk on its first rotation on October 29, 2003.

 

These two sunspots, 13663 and 13664, persisted on the disk for at least two rotations. One of these two (13664) is some of the largest sunspot regions ever recorded in modern history, like old 10486.

Info of 13663:

Persisted for at least 57 days.

Info of 13664:

Persisted for at least 55 days.

(For comparison) Info of 13685:

Persisted for at least 50 days.

- faster328

Edited by faster328
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Noting old region 13663/13691 are currently unnumbered this rotation, only having very small spots. 13721 is a different region.

Region 13685 began for us as it rotated over the eastern limb on May 15th and is now ongoing as region 13713.

 

 

Regions lasting several rotations happen, especially during all of the activity around solar maximum. Watching all the bubbling activity is pretty cool.

Not all long lasting regions are super complex though from what side of the Sun we are able to see. Region 13634 was numbered on April 8th and was last seen as region 13667 going over the western limb as a single negative polarity umbra on May 17th.

Edited by Jesterface23
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  • faster328 changed the title to ARs 13663/13691 and 13664/13697
Posted (edited)

Eventual AR 13723 will likely be numbered to old 13663/13691 or 13664/13697.

5 hours ago, Jesterface23 said:

Noting old region 13663/13691 are currently unnumbered this rotation, only having very small spots. 13721 is a different region.

Region 13685 began for us as it rotated over the eastern limb on May 15th and is now ongoing as region 13713.

 

 

Regions lasting several rotations happen, especially during all of the activity around solar maximum. Watching all the bubbling activity is pretty cool.

Not all long lasting regions are super complex though from what side of the Sun we are able to see. Region 13634 was numbered on April 8th and was last seen as region 13664 going over the western limb as a single negative polarity umbra on May 17th.

13663 is a different region as evidenced by solar rotations.

AR S9822 = old 13664/13697?

Edited by faster328
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5 hours ago, faster328 said:

13663 is a different region as evidenced by solar rotations.

Yep, somehow mistyped. Meant to have it with a 7 at the end.

 

5 hours ago, faster328 said:

AR S9822 = old 13664/13697?

Region 13664/13697 is still behind the limb.

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