空间天气实况贴

闽海星尘

AR 3697(3664) M1.08

闽海星尘

AR 3691(3663) C5.41

闽海星尘

继续看看太阳背面，AR 3679和AR 3683组成的巨型活跃期还有一周进入正面

闽海星尘

AR 3691(3663)+AR 3698  C8.02

闽海星尘

AR 3697(3664)  X1.18  无CME


An impulsive X1.1 solar flare was detected around AR 3697 (3664) at 22:03 UTC (May 31). The quick rising flare will likely not be the source of a noteworthy eruption, however additional updates will be provided if necessary. This is now the 48th X-Flare of the current Solar Cycle 25, leaving us just one behind the total amount of X-Flares during the entirety of the previous Solar Cycle 24.

闽海星尘

回顾过去一周的X射线通量情况，在AR 3664(3697)回归之前，太阳活动水平整体较低，背景通量水平在C1.5以下，为数不多的几次耀斑均为C级别，主要来自于已经退化的原大型活动区AR 3663(3691)。5月27日开始AR 3664(3697)逐渐回归正面，当天午后便出现了本周最大的X2.9耀斑，并伴有一次full halo CME抛射（可以通过天文望远镜在Hα等波动观测到有一块高密度高质量的日冕物质被抛射出去）。随后一天里AR 3664(3697)基本完全移入太阳正面，背景通量上升到了C3以上，并出现了大量C5以上级别的耀斑。5月29日活跃度达到顶峰，当天总共出现6个M1以上耀斑，其中还有AR 3664(3697)的一次长周期X1.4耀斑事件并抛射了一次halo CME，AR 3663(3691)同样出现了明显的耀斑活动。随后随着AR 3664(3697)和AR 3663(3691)的进一步减弱退化，太阳活动水平持续下降，背景通量下降到C2以下，两天时间里没有一个达到M2的耀斑，小型耀斑活动频率也出现下降，不过新出现了AR 3698这一C级耀斑较活跃的区域。后续在6月1日清早AR 3664(3697)再度出现了X1.1耀斑事件，但并没有像之前一样出现CME抛射。而AR3663(3691)则继续减弱。大概AR 3679和AR 3683回归之前太阳正面的活动水平都要维持在不大强的水平了。

闽海星尘

AR 3697(3664)  X1.43  无CME


  Good morning. How about another X-Flare!
The latest event measuring X1.4 was just detected around AR 3697 (3664) at 08:48 UTC (Jun 1). Much like the X-Flare yesterday evening, a CME does not appear to be associated with this event. Some dimming was observed to the north of 3697 before this event, but coronagraph imagery does not seem to reveal any plasma leaving the Sun. The flare producing machine is now in a good location for potential Earth directed eruptions.
  And with this now being the 49th X-Flare of the current solar cycle, we have tied the X-Flare total from the previous solar cycle 24. When will #50 take place? Stay tuned to find out.

闽海星尘

截止目前3697(3664)的光辉战绩......
05.08  X1.0   3664
05.09  X1.0   3664
05.09  X2.2   3664
05.10  X1.1   3664
05.10  X3.9   3664
05.11  X5.8   3664
05.11  X1.5   3664
05.13  X1.0   3664
05.14  X1.7   3664
05.14  X1.2   3664
05.14  X8.7   3664
05.15  X3.4   3664
——进入太阳背面——
期间最大  05.20  ~X12
——回归太阳正面——
05.27  X2.9   3697(3664)
05.29  X1.4   3697(3664)
06.01  X1.1   3697(3664)
06.01  X1.4   3697(3664)

闽海星尘

  It appears that the CME observed on May 29th finally grazed past the ACE spacecraft this morning just after 09:30 UTC (Jun 1). This will be mostly a miss downstream of Earth and geomagnetic storming is unlikely, at least in the short term based on the current data. Further updates will be provided should conditions change.

闽海星尘

日常太阳背面