Image Details
Caption: Figure 2.
Distribution of orbital periods for all confirmed symbiotic stars. S-, D-, and D’-type systems are shown in yellow, dark red, and cyan, respectively. A few objects with periods longer than 5500 days are not shown. The vertical red dashed line marks the median period of S-type systems (698 days).
© 2026. The Author(s). Published by the American Astronomical Society.