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Real-time auroral and solar activity

Solar activity

Sunspot regions, coronal holes, filaments? In this forum we discuss everything related to the activity on our nearest star.

Solar activity forum rules - Let's keep things tidy!

1. Want to talk about a sunspot region? Feel free to make a topic! Keep the title clean and simple! For example: Sunspot region 1234, or AR1234.
2. Want to discuss a solar flare? Do not make a new topic! Post in the existing topic for that sunspot region or make a new topic if the sunspot region in question does not have a topic yet!
3. Solar flares and sunspot regions on the east limb that are not numbered yet are discussed in this topic.
4. Returning active region? Make a new topic with the current sunspot region number. Do not revive the old topic for that sunspot region!
5. Want to talk about coronal holes? There is a dedicated topic for that. Do not post a new topic.
6. Want to talk about filaments? There is a dedicated topic for that. Do not post a new topic.
7. Discussions about possible earth-directed coronal mass ejections and the geomagnetic storm that it might cause go in the geomagnetic activity forum.

860 topics in this forum

  1. Is 2492 like 2192 in that it can't launch a CME?

    By Guest danderson500,
    • 5 replies
    • 1.5k views

  2. New filament - anything exciting?

    By Guest danderson500,
    • 3 replies
    • 1.6k views

  3. Sunspot region 2415

    By Guest danderson500,
    • 1 reply
    • 1.2k views

  4. Sunspot region 2403 1 2 3

    By Maxime Fiset,
    • 55 replies
    • 6.4k views

  5. My god...

    By AbeH,
    • 4 replies
    • 2.4k views

  6. What is "The Great Conveyor belt" ?

    By AbeH,   
    • 6 replies
    • 2.1k views

  7. Sept. 02 CME magnitude

    By Maxime Fiset,   
    • 3 replies
    • 1.1k views

  8. Increasing chance of flares?

    By AbeH,
    • 3 replies
    • 1.3k views

  9. big CME

    By Guest danderson500,
    • 4 replies
    • 2k views

  10. question

    By Guest danderson500,
    • 1 reply
    • 1.2k views

  11. Sunspot region 2360 on GONG

    By Guest danderson500,
    • 22 replies
    • 3k views

  12. erupton

    By Guest danderson500,
    • 10 replies
    • 1.9k views

  13. 2371

    By Guest danderson500,
    • 5 replies
    • 1.5k views

  14. active region 12371 visible to naked eye

    By Guest mj1009,
    • 1 reply
    • 1.7k views

  15. Farside strength

    By Guest danderson500,   
    • 0 replies
    • 912 views

  16. Help making up a sunspot # for a book

    By Guest booknerd44,
    • 5 replies
    • 1.5k views

  17. How is "Latest X-Ray Event" Defined?

    By Guest John Golloway,
    • 7 replies
    • 3.5k views

  18. Active Region 12242

    By Guest PetaFlux,
    • 6 replies
    • 3.2k views

  19. No information on the M5.7 Flare on 11/16?

    By Guest DHFore,
    • 3 replies
    • 1.3k views

  20. The return of AR 2192

    By Acidus,   
    • 13 replies
    • 3.2k views

  21. Solar storm - positive ion

    By oemSpace,
    • 3 replies
    • 1.9k views

  22. Active Region 2192 - (M8.7)

    By Guest lingduxingxi,
    • 2 replies
    • 2.4k views

  23. The largest sunspot group 12192？

    By Guest lingduxingxi,
    • 1 reply
    • 3.3k views

  24. Active Region 2157

    By Vancanneyt Sander,
    • 1 reply
    • 3.4k views

  25. Solar Cycle 24

    By Marcel de Bont,   
    • 23 replies
    • 8.1k views
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