Lewis and Clark Trail State Park
- M-type star (Wikipedia)
Class M stars are by far the most common. About 76% of the main-sequence stars in the solar neighborhood are class M stars. However, class M main-sequence stars (red dwarfs) have such low luminosities that none are bright enough to be seen with the unaided eye, unless under exceptional conditions. The brightest-known M class main-sequence star is Lacaille 8760, class M0V, with magnitude 6.7 (the limiting magnitude for typical naked-eye visibility under good conditions being typically quoted as 6.5), and it is extremely unlikely that any brighter examples will be found.
- Touchet River (Wikipedia)
The Touchet River /ˈtuːʃi/ is a 65-mile (105 km) tributary of the Walla Walla River in southeastern Washington in the United States. The Touchet River drains an area of about 752 square miles (1,950 km2) in Columbia County and Walla Walla County.