Declination is listed in the Ephemeris, in a subsection. If you're an amateur star-gazer, declination will enable you to locate stars and planets using "right ascension", which gives location by the 24 hour clock (adjusted for time zones). For Astrological purposes, you can simply compare the degree of declination for the Sun, Moon, and planets--if they're within 2 degrees of one another either N or S of the Celestial Equator, they're in parallel. For example, Jupiter and Neptune (both in the Piscean-rulership category) are currently in close S. Parallel, and Venus and Mars are in N. Parallel. Any parallels with the Sun are ALSO parallels with any points measured along the Ecliptic, (which is our Zodiacal plane of reference), including the Ascendant and the nodes.