Enter a recorded birth moment to see ten geocentric declinations and every pair inside your selected orb.
Open the declination calculator →Two coordinates, two questions
Most birth-chart aspect tables compare longitudes around the zodiac. Declination takes a different measurement: angular distance north or south of the celestial equator. A planet can be parallel another planet without sharing a zodiac sign or a longitude conjunction. The result is a relationship between two north–south coordinates, not a statement that the two bodies occupy the same visible point.
Apparent geocentric positions put the observer at Earth’s centre for the calculation. The site rotates each body’s equatorial vector to the true equator of the birth date, then takes its declination. North is positive, south is negative. This matters because using only a planet’s ecliptic longitude would discard its ecliptic latitude, which is especially important for the Moon.
Orb and birth time
The default orb here is 1°. A wider orb shows more pairs; it does not make the resulting interpretation more certain. This calculator compares the ten listed planetary bodies pair by pair and reports the absolute declination difference for a parallel or the absolute sum for a contra-parallel.
A missing birth hour leaves the natal instant uncertain. The Moon’s declination can shift enough during one day to change a tight match. For date-only input, the calculator samples the local civil date every fifteen minutes and shows possible pairs and sampled declination ranges. Those are leads to check, never a definite personal aspect. A historical UTC offset is still needed to identify that local date’s UTC span.