Astronomical data in an Ephemeris comes in the form: 07Constellation38.2 or 07Leo38.2 What is the value, 07, represent? I think I understand the Constellation the object is passing thru like the planet and the moon. Also what does the 38.2 stand for? Do they stand for Right Ascension and Declination? Second part, the Galactic Center listed at 26Sag59.5 for March and Vernal Point, 05Pis06.47, are there any equations for the motion of these using Julian Date and other parameters.