Image Details
Caption: Figure 5.
Comparison between the planetary magnetospheric size and the star’s age for the E. N. Parker (1958) model using WTTS data and data from V. See et al. (2014), color coded by chromospheric activity. The figure also includes the Earth’s position, based on the Sun, which has an age of 4.57 Gyr (A. Bonanno et al. 2002).
© 2026. The Author(s). Published by the American Astronomical Society.