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.
846 topics in this forum
-
- 469 replies
- 47.5k views
-
- 49 replies
- 5.8k views
-
-
-
- 81 replies
- 8.1k views
-
- 9 replies
- 937 views
-
- 1 reply
- 392 views
-
- 11 replies
- 850 views
-
- 76 replies
- 9k views
-
- 155 replies
- 22.4k views
-
- 2 replies
- 216 views
-
- 1 reply
- 371 views
-
- 4 replies
- 862 views
-
- 669 replies
- 87k views
-
Region 3599 1 2 3 4
- 77 replies
- 11.6k views
-
- 10 replies
- 2k views
-
- 344 replies
- 52.1k views
-
- 5 replies
- 704 views
-
- 5 replies
- 647 views
-
- 5 replies
- 1k views
-
- 2 replies
- 9.1k views
-
- 5 replies
- 647 views
-
- 15 replies
- 2.9k views
-
- 13 replies
- 880 views
-
- 612 replies
- 58.2k views