The brightness of the Sun varies on all timescales on which it has been observed, and there
is increasing evidence that this has an influence on climate. The amplitudes of such …

The Sun's net radiative output varies on timescales of minutes to gigayears. Direct
measurements of the total solar irradiance (TSI) show changes in the spatially-and spectrally …

The lack of long and reliable time series of solar spectral irradiance (SSI) measurements
makes an accurate quantification of solar contributions to recent climate change difficult …

Context. Total and spectral solar irradiance are key parameters in the assessment of solar
influence on changes in the Earth's climate. Aims. We present a reconstruction of daily solar …

The 1.5 m telescope GREGOR opens a new window to the understanding of solar small‐
scale magnetism. The first light instrumentation includes the Gregor Fabry Pérot …

We compare patterns of variation for the Sun and 72 Sun-like stars by combining total and
spectral solar irradiance measurements between 2003 and 2017 from the SORCE satellite …

The correlation between solar irradiance and the 11-year solar activity cycle is evident in the
body of measurements made from space, which extend over the past four decades. Models …

The record of total solar irradiance (TSI) during the past 35 years has overlapping
observations from space which can be merged to a composite, and three are available …

Context. Stellar activity patterns are responsible for jitter effects that are observed at different
timescales and amplitudes in the measurements obtained from photometric and …

Context. The study of variations in total solar irradiance (TSI) is important for understanding
how the Sun affects the Earth's climate. Aims. Full-disk continuum images and …