- Chuckanut Mountains (Wikipedia)
The Chuckanut Mountains (from “Chuckanut”, an indigenous word meaning “long beach far from a narrow entrance”), or Chuckanuts, are located along the Washington state coast of the Salish Sea, just south of Bellingham, Washington. Part of the Cascade Range, they are the only place where the Cascades come west down to meet the sea. The Chuckanuts are considered to be a part of the Puget Lowland Forest Ecoregion.
- Celestial sphere (Wikipedia)
In astronomy and navigation, the celestial sphere is an abstract sphere that has an arbitrarily large radius and is concentric to Earth. All objects in the sky can be conceived as being projected upon the inner surface of the celestial sphere, which may be centered on Earth or the observer. If centered on the observer, half of the sphere would resemble a hemispherical screen over the observing location.