关于目前太阳可见表面最大的黑子群1654的一些信息:Active Sunspot cluster 1654 continues to produce C-Class and low level M-Class solar flares. Region 1654, now classified as a Beta-Gamma-Delta magnetic group, produced a moderate M1.2 solar flare at 09:11 UTC, followed by a long duration M1.0 event peaking at 15:07 UTC Friday morning. This region will continue to be a threat for moderate to strong solar flares within the next 24-48 hours.(活跃的太阳黑子群1654目前仍继续产生C级或低一些的M级耀斑。昨天产生了两次,M1.2和M1.0级的耀斑。未来24-48小时仍有爆发强烈耀斑的可能。)
SDO的1654图片: