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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.

857 topics in this forum

  1. ''Down the line'' look of a filament

    By Marcel de Bont,
    • 0 replies
    • 1.4k views

  2. "NOAA forecasters" and their "forecasting". Are they real at all?

    By Chris, HB9DFG,
    • 18 replies
    • 1.4k views

  3. "Something" is suppressing sunspots.

    By theartist,
    • 0 replies
    • 1.8k views

  4. (AR2965) "Hello limb side, next group please..."

    By Chris, HB9DFG,
    • 9 replies
    • 832 views

  5. 1/17/2023 Possible Coronal hole facing earth? no warning/notification yet?

    By Sieffre Involution,
    • 4 replies
    • 1.3k views

  6. 10.7cm Solar Radio Flux, raw or adjusted?

    By RationalArgument,
    • 1 reply
    • 1.2k views

  7. 2021-06-30 EPAM data lines up with 1,000% spike in home geiger counter

    By Gunslinger2-6,
    • 2 replies
    • 451 views

  8. 2371

    By Guest danderson500,
    • 5 replies
    • 1.5k views

  9. 2443 m flare cme possibility

    By AurorahunterPA,   
    • 2 replies
    • 1.1k views

  10. 2454 and 2456

    By Guest GDMorgan,
    • 3 replies
    • 1.2k views

  11. 28-29 Jul S2 radiation storm

    By tniickck,
    • 14 replies
    • 1.8k views

  12. 2907 is Beta-Gamma-Delta again!!!!!!

    By Space pro,   
    • 6 replies
    • 653 views

  13. 2916 spot looks to be worth watching already 1 2 3

    By Christopher S.,
    • 53 replies
    • 2.9k views

  14. 2981 on SDO - What exactly am I looking at here

    By Christopher S.,
    • 20 replies
    • 878 views

  15. 3 simultaneous CMEs

    By Sam Warfel,
    • 5 replies
    • 738 views

  16. 3196

    By Strom,
    • 5 replies
    • 718 views

  17. 774 solar event x class what if carrington event x45

    By rankamateur,
    • 4 replies
    • 7.2k views

  18. A Cme headed into our Direction?

    By MinYoongi,
    • 2 replies
    • 927 views

  19. A Day Without Sunspots Watch

    By Drax Spacex,
    • 16 replies
    • 2.1k views

  20. A Little Encouragement

    By lightpanther,
    • 19 replies
    • 875 views

  21. a more curious question

    By Isatsuki San,
    • 1 reply
    • 547 views

  22. A nice shot in the *East*

    By Sam Warfel,
    • 19 replies
    • 734 views

  23. A nice shot in the west

    By Chris, HB9DFG,
    • 21 replies
    • 1.7k views

  24. A place for you to panic!!

    By Cronus,
    • 1 reply
    • 635 views

  25. a question about the carrington event of 1859

    By Isatsuki San,
    • 17 replies
    • 1.1k views
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