As the earth turns, the Right Ascension of an object crossing overhead advances by one hour of Right Ascension for each hour that passes. In 24 hours the earth turns once on its axis and the sky goes through 24 hours of Right Ascension. Christ and his mother and all his hallows. This map shows the entire night sky. Locations in the sky are much the same as they are on earth, but are given as Declination and Right Ascension, not latitude and longitude.
Declination is just like latitude.
A star's declination describes its location north or south of the celestial equator. Declination is measured in degrees of arc. Positive declinations are in the northern half of the sky. Negative declinations are in the south. A star's east-west location is called Right Ascension.