Definition:Parallel of Declination

Definition

Let $X$ be a point on the celestial sphere.

Let $LXM$ be a small circle through $X$ which is parallel to the celestial equator.

Then $LXM$ is a parallel of declination, and is such that all celestial bodies on it have the same declination.

Sources

• 1976: W.M. Smart: Textbook on Spherical Astronomy (6th ed.) ... (previous) ... (next): Chapter $\text {II}$. The Celestial Sphere: $19$. Declination and hour angle.