- Main sequence (Wikipedia)
In astronomy, the main sequence is a classification of stars which appear on plots of stellar color versus brightness as a continuous and distinctive band. Stars on this band are known as main-sequence stars or dwarf stars, and positions of stars on and off the band are believed to indicate their physical properties, as well as their progress through several types of star life-cycles. These are the most numerous true stars in the universe and include the Sun. Color-magnitude plots are known as Hertzsprung–Russell diagrams after Ejnar Hertzsprung and Henry Norris Russell.
- Washougal, Washington (Wikipedia)
Washougal (/wɑːˈʃuːɡəl/ wah-SHOO-gəl) is a city in Clark County, Washington, United States. The population was 17,039 as of the 2020 census.
- Washougal (Wikivoyage)
Washougal is a charming river community of 17,000 people at the junction of the Washougal and Columbia Rivers in southwest Washington State. Visitors will find the cozy downtown a convenient launch for ample outdoor activities including hiking, fishing, kayaking, inner-tubing, mountain biking, motorsports, shooting-sports and more.