Vancanneyt Sander Posted November 11, 2013 Share Posted November 11, 2013 SpaceWeatherLive Solar Activity Update November 11th 2013 - 12:00 UTC A new region emerged yesterday on the Sun and has got the number 1897. First views on the region indicate a large sunspot cluster with several spots and much faculae. It does show a magnetic complex structure but it's still hard to see due to the location near the limb. A possible delta structure is visible in the central spot cluster. The region was already responsible for multiple C-class flares throughout today and is also responsible for the flux increase. This new region produced it's first moderately strong solar flare, a long duration M2.48. It's very likely that there will be a coronal mass ejection. But due to the location on the disk it will not be Earth directed. We will look at further imagery to confirm. http://www.spaceweatherlive.com/community/uploads/monthly_11_2013/post-1-0-21028400-1384171716.pnghttp://www.spaceweatherlive.com/community/uploads/monthly_11_2013/post-1-0-97176700-1384171716.pnghttp://www.spaceweatherlive.com/community/uploads/monthly_11_2013/post-1-0-95712200-1384171674.jpg Link to comment Share on other sites More sharing options...
Guest Posted November 11, 2013 Share Posted November 11, 2013 wow this looks like a familiar situation I remember not all that long ago ...........still malnourished for a solar max however. Link to comment Share on other sites More sharing options...
Vancanneyt Sander Posted November 11, 2013 Author Share Posted November 11, 2013 There is still a data gap in LASCO imagery but it looks like there is no CME visible, STEREO A did show something faint. But nevertheless, not Earth directed. wow this looks like a familiar situation I remember not all that long ago ...........still malnourished for a solar max however. 1890 was also a region which was covered in faculae when it appeared near the eastern limb indeed. We can hope on a same scenario where the faculae vanishes and new spots take it's place. We'll see how it evolves ;-) Link to comment Share on other sites More sharing options...
Vancanneyt Sander Posted November 12, 2013 Author Share Posted November 12, 2013 SpaceWeatherLive Solar Activity UpdateNovember 12th 2013 - 11:00 UTCThe region is now on a location where we can see it's magnetic configuration very well, in this update we'll focus on that and see if there are some changes within the region.Compared to yesterday, the region showed signs of growth, particularly in the southeastern part of the cluster, but it lost some penumbral area in it's center spots. At the moment the region does not have a delta configuration anymore and can thus be classified as a beta-gamma magnetic configuration. An M-class flare can't be ruled out but will depend on it's development throughout the day. Link to comment Share on other sites More sharing options...
Marcel de Bont Posted November 13, 2013 Share Posted November 13, 2013 SpaceWeatherLive Solar Activity Update November 13th 2013 - 15:00 UTC Sunspot group 1897 is currently the most interesting sunspot group on the disk but it is showing signs of a slow decay and unfortunately does not have a magnetic delta structure. It does still have some polarity intermixing which makes it a group with a Beta-Gamma magnetic layout. It is the most active region on the disk with multiple C-class flares being detected from it in the past 24 hours. The strongest flare was an C9.8 solar flare at 23:08 UTC on November 12th.Active Regions 1895 and 1897: http://www.spaceweatherlive.com/community/uploads/monthly_11_2013/post-94-0-12700500-1384355064.jpghttp://www.spaceweatherlive.com/community/uploads/monthly_11_2013/post-94-0-62215500-1384355064.jpghttp://www.spaceweatherlive.com/community/uploads/monthly_11_2013/post-94-0-39403700-1384355065.jpgWhat can we expect in the upcoming 24h? Active Region 1897 does not have a delta structure and is slowly in decay. This reduces the chance for flares. There is still some polarity mixing within the group so an isolated low-level M-class flare is not to be ruled out but the odds are not very high. M-class flare probability: 25% chanceX-class flare probability: 1% chance SpaceWeatherLive Solar Activity Update November 13th 2013 - 15:30 UTC Active Region 1897 just produced an M1.43 solar flare which peaked at 15:20 UTC. It is too early to tell if there was a CME released with this flare but this group is still not in a great position for it to be Earth-directed. We will like always keep you updated if we have more news. http://www.spaceweatherlive.com/community/uploads/monthly_11_2013/post-94-0-23114000-1384356781.jpghttp://www.spaceweatherlive.com/community/uploads/monthly_11_2013/post-94-0-44045500-1384357173.pnghttp://www.spaceweatherlive.com/community/uploads/monthly_11_2013/post-94-0-74090600-1384357173.png Link to comment Share on other sites More sharing options...
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