Christopher S. Posted December 22, 2021 Share Posted December 22, 2021 (edited) It's coming around in the lower hemisphere. I was trying to analyze what the other spots are doing, but then I noticed this thing bursting with flares and seems to be rapidly growing... or decaying. Hard to tell at time of writing. UPDATE: It's decaying. Meanwhile, 2917 is growing. Watch that instead. Well 2916 decided it wasn't done being relevant, so we're back to it Edited December 25, 2021 by Christopher S. Manually updating image 2 Link to comment Share on other sites More sharing options...
Sam Warfel Posted December 22, 2021 Share Posted December 22, 2021 5 minutes ago, Christopher S. said: It's coming around in the lower hemisphere. I was trying to analyze what the other spots are doing, but then I noticed this thing bursting with flares and seems to be rapidly growing... or decaying. Hard to tell at time of writing. https://www.spaceweatherlive.com/en/solar-activity/sunspot-regions.html#2916 I believe the image there will update over time, as it's an image link from SWL I was just about to post something related to 2916! The main part appears to be a simple Alpha spot, but there are other plages or small spots nearby, so there may be more to it than that. Plus, it’s already given us at least two M-flares, right? Hopefully the emergence of this spot will make up for losing 2907-08-09. Link to comment Share on other sites More sharing options...
Solarflaretracker200 Posted December 22, 2021 Share Posted December 22, 2021 Something tells me that this sunspot is going to be an very interesting one Link to comment Share on other sites More sharing options...
farm24 Posted December 22, 2021 Share Posted December 22, 2021 2 hours ago, Orneno said: I was just about to post something related to 2916! The main part appears to be a simple Alpha spot, but there are other plages or small spots nearby, so there may be more to it than that. Plus, it’s already given us at least two M-flares, right? Hopefully the emergence of this spot will make up for losing 2907-08-09. To me it looks like a beta delta Link to comment Share on other sites More sharing options...
Vancanneyt Sander Posted December 22, 2021 Share Posted December 22, 2021 18 minuten geleden, farm24 zei: To me it looks like a beta delta The trailing part of the region is still too close to determine the precise magnetic layout. So SWPC would still give it beta or beta-gamma at max Link to comment Share on other sites More sharing options...
Drax Spacex Posted December 22, 2021 Share Posted December 22, 2021 The magnetic configuration is curious. It looks like 2 simple ARs, the trailing AR a mirror image of the leading AR - the trailing AR with reverse magnetic orientation for sunspots in the southern hemisphere. No wonder it has been unstable and somewhat feisty. It looks like a bowtie, a butterfly or a TIE fighter. Link to comment Share on other sites More sharing options...
Christopher S. Posted December 23, 2021 Author Share Posted December 23, 2021 Just watch this https://sdo.gsfc.nasa.gov/assets/img/latest/mpeg/latest_1024_0304_synoptic.mp4 1 Link to comment Share on other sites More sharing options...
Solarflaretracker200 Posted December 23, 2021 Share Posted December 23, 2021 10 minutes ago, Christopher S. said: Just watch this https://sdo.gsfc.nasa.gov/assets/img/latest/mpeg/latest_1024_0304_synoptic.mp4 Interesting Link to comment Share on other sites More sharing options...
Christopher S. Posted December 23, 2021 Author Share Posted December 23, 2021 5 minutes ago, Solarflaretracker200 said: Interesting Well, somewhat. It's interesting to learn from, watching the past 48 hours. I chose that wavelength due to the number of filament eruptions and how they show enhanced activity at a distance quite well. I also think it is useful for determining(honestly, just interpreting) real-time behavior on the surface of the sun. Link to comment Share on other sites More sharing options...
Flareguy18 Posted December 23, 2021 Share Posted December 23, 2021 Latest discussion from SWPC mentions 2916 may be in the process of developing a delta spot in its trailing penumbra. Still just a tad too early to tell but it looks like it. I've been wondering about that since it began rotating into view. 1 Link to comment Share on other sites More sharing options...
Vancanneyt Sander Posted December 23, 2021 Share Posted December 23, 2021 It's indeed a bit early still as there are not yet any spots in that particular trailing section but it's interesting. Link to comment Share on other sites More sharing options...
Christopher S. Posted December 23, 2021 Author Share Posted December 23, 2021 3 hours ago, Vancanneyt Sander said: It's indeed a bit early still as there are not yet any spots in that particular trailing section but it's interesting. Based on what I'm seeing, it's decayed a bit since the activity we saw. At least it looked spectacular and I was able to observe behavior I hadn't really seen before. Link to comment Share on other sites More sharing options...
Bedreamon Posted December 23, 2021 Share Posted December 23, 2021 Yeah, it really does. For better or for worse, AR2916 seems like it'll be interesting. Although, it's still a beta sunspot despite being so large. Link to comment Share on other sites More sharing options...
Solarflaretracker200 Posted December 23, 2021 Share Posted December 23, 2021 There is still a chance of it growing again. Honestly I think It will grow again. AR 2916 could become a Beta delta gamma or what ever you call it. Link to comment Share on other sites More sharing options...
Christopher S. Posted December 23, 2021 Author Share Posted December 23, 2021 (edited) Is Active Region Cross-Talk a thing? in 171 it appears that 2916 and 2917 have loops mingling together, but seemingly disconnected. Edited December 23, 2021 by Christopher S. Link to comment Share on other sites More sharing options...
Drax Spacex Posted December 23, 2021 Share Posted December 23, 2021 46 minutes ago, Christopher S. said: Is Active Region Cross-Talk a thing? in 171 it appears that 2916 and 2917 have loops mingling together, but seemingly disconnected. I think Inter-AR Cross-Talk is a thing. Magnetic loops between ARs close to each other are more common, but magnetic loops between more distant ARs can occur as well. A good question is whether the brightening/energizing of these loops can precipitate or stimulate the occurrence of flares. 1 Link to comment Share on other sites More sharing options...
Vancanneyt Sander Posted December 23, 2021 Share Posted December 23, 2021 14 minuten geleden, Drax Spacex zei: I think Inter-AR Cross-Talk is a thing. Magnetic loops between ARs close to each other are more common, but magnetic loops between more distant ARs can occur as well. A good question is whether the brightening/energizing of these loops can precipitate or stimulate the occurrence of flares. As far as I know solar flares originate closer to the surface. The bigger interconnecting loops doesn’t trigger flares, but can break during a solar flare beneath it as the ejecta breaks through the upper magnetic field lines. After the solar flare there is magnetic reconnection that brings it back together. That’s why a delta spot is important, get two spots of opposite polarity close to each other and you’ll get fireworks, get them further apart and there’s nothing happening. 2 Link to comment Share on other sites More sharing options...
3gMike Posted December 23, 2021 Share Posted December 23, 2021 1 hour ago, Christopher S. said: Is Active Region Cross-Talk a thing? in 171 it appears that 2916 and 2917 have loops mingling together, but seemingly disconnected. Yes, I believe so. https://commons.wikimedia.org/wiki/File:Cartoonloops.png https://en.wikipedia.org/wiki/Coronal_loop 1 Link to comment Share on other sites More sharing options...
Christopher S. Posted December 23, 2021 Author Share Posted December 23, 2021 Hmm. I just wonder about the magnetic configuration here. I also don't predict anything between these two, but thank you for sharing this information! I have learned quite a bit in the last few days. 1 Link to comment Share on other sites More sharing options...
Solarflaretracker200 Posted December 24, 2021 Share Posted December 24, 2021 I may be wrong, but 2918 looks interesting now... Link to comment Share on other sites More sharing options...
Vancanneyt Sander Posted December 24, 2021 Share Posted December 24, 2021 19 minuten geleden, Solarflaretracker200 zei: I may be wrong, but 2918 looks interesting now... Still beta, but something interesting is growing in the central part of the region where the two polarities divide. 2916 is more interesting with a possible delta just in the first part of the trailing spots. 1 Link to comment Share on other sites More sharing options...
farm24 Posted December 25, 2021 Share Posted December 25, 2021 To me it looks like it has a delta but I could be wrong Link to comment Share on other sites More sharing options...
Solarflaretracker200 Posted December 25, 2021 Share Posted December 25, 2021 2916 you mean? Honestly I think it could be a delta but I don’t know much about sunspots yet. Link to comment Share on other sites More sharing options...
Sam Warfel Posted December 25, 2021 Share Posted December 25, 2021 Let’s hope it is, and sticks around Link to comment Share on other sites More sharing options...
Flareguy18 Posted December 25, 2021 Share Posted December 25, 2021 I am also pretty new when it comes to trying to classify sunspots, but it does seem like a delta spot is beginning to emerge in its trailer region. Very small right now, but seeing negative polarity spots appearing next to the darker positive spots within the penumbra. It's really grown today! Link to comment Share on other sites More sharing options...
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