You are holding the world's longest - serving Ephemeris. Published every year since 1795, it has survived for one very good reason: it contains the most accurate calculations and information for the astrologer.
It is 100% reliable.
This is the right tool for the business of calculating charts, and beginners in particular should tune into it if the aspire to produce top-quality work.
Raphael's Ephemeris - the accurate guide you can always rely on.