Variable renewable energy (VRE) or intermittent renewable energy sources (IRES) are sources that are not due to their fluctuating nature, such as and , as opposed to controllable renewable energy sources, such as dammed or , or relatively constant sources, such as power.
[pdf] From the total of 4,949 stars known to have exoplanets (as of July 24, 2024), there are a total of 1007 known multiplanetary systems, or stars with at least two confirmed planets, beyond the Solar System. This list includes systems with at least three confirmed planets or two confirmed planets where additional. .
Stars orbited by objects on both sides of the 13 dividing line.• (HD 3651)• • .
• • • • •
[pdf] 
