- South Park, Seattle (Wikipedia)
South Park is a neighborhood in Seattle, Washington. It is located just south of Georgetown across the Duwamish River, and just north of the city of Tukwila. Its main thoroughfares are West Marginal Way S. (northwest- and southeast-bound), S. Cloverdale Street (east- and westbound) and 14th Ave. S (north-and-south). South Park connects to Georgetown by two bridges at 1st Ave S. at the northmost end of the neighborhood, and the South Park Bridge at the north end of 14th Ave. South.
- Binary star (Wikipedia)
A binary star or binary star system is a system of two stars that are gravitationally bound to and in orbit around each other. Binary stars in the night sky that are seen as a single object to the naked eye are often resolved using a telescope as separate stars, in which case they are called visual binaries. Many visual binaries have long orbital periods of several centuries or millennia and therefore have orbits which are uncertain or poorly known. They may also be detected by indirect techniques, such as spectroscopy (spectroscopic binaries) or astrometry (astrometric binaries). If a binary star happens to orbit in a plane along our line of sight, its components will eclipse and transit each other; these pairs are called eclipsing binaries, or, together with other binaries that change brightness as they orbit, photometric binaries.