Betula alleghaniensis Betula alleghaniensis Betula alleghaniensis, the yellow birch or golden birch, is a large and important lumber species of birch native to North-eastern North America. Its vernacular names refer to the color of the tree's bark. The name "Betula lutea" was used expansively for this tree but has now been replaced. "Betula alleghaniensis" is the provincial tree of Quebec, where it is commonly called "merisier", a name which in France is used for the wild cherry. It is a medium-sized, typically single stemmed, deciduous tree reaching tall (exceptionally to ) with a trunk typically in diameter. Yellow birch is a relatively
Northern celestial hemisphere referred to as the Northern Hemisphere. For the purpose of celestial mapping, astronomers may conceive the sky as the inside of a sphere divided into two halves by the celestial equator. The Northern Sky or Northern Hemisphere is therefore the half of the celestial sphere that is north of the celestial equator. Even if this geocentric model is the ideal projection of the terrestrial equator onto the imaginary celestial sphere, the northern and southern celestial hemispheres is not to be confused with descriptions of the terrestrial hemispheres of Earth itself. Northern celestial hemisphere The northern celestial hemisphere, also called the