SunRISE: Cyclic and Long-Term Irradiance Variations of Sunlike Stars--Gauging the Sun

这种太阳变化与恒星类似物的比较拓宽了社区对太阳11年活动周期变化的理解。研究人员已经观察到41颗“类太阳”恒星的长期亮度变化潜力。他们的研究结果表明，视觉亮度的变化和磁场活动并不像从太阳黑子和其他太阳数据重建长期太阳辐照度波动所假设的那样简单相关。这种恒星观测的扩展提供了一套完整的精密光度测量，并使太阳的磁场和亮度变化与类似恒星的变化进行比较。这项研究对全球变化有直接影响，因为它提供了对太阳历史和未来变化的估计。

This comparison of solar variability with stellar analogs broadens the community's understanding of variability throughout the Sun's 11-year activity cycle. Researchers have observed the potential for long-term brightness variability on 41 'sun-like' stars. Their results show that changing visual brightness and magnetic activity are not simply correlated, as presumed in the reconstruction of long-term solar irradiance fluctuations from sunspot and other solar data. This extension of stellar observations provides an unbroken set of precision photometric measurements, and enables comparisons of magnetic and brightness variations of the Sun with those of similar stars. The research has direct impact on global change, as it provides estimates of the Sun's historic and future variations.