Moon Out of Bounds Dates

Declination is a body's angular distance north or south of the celestial equator, measured in degrees. Unlike zodiac longitude, it is a physical sky coordinate, so it does not depend on house system, tropical vs sidereal zodiac, or any other framing choice. Every chart has both a longitudinal axis and a declination axis.

A planet is out of bounds when its absolute declination exceeds the Sun's own maximum of about 23°26' (the obliquity of the ecliptic at J2000). Moon, Mercury, Venus, Mars, and Pluto are the bodies most often given dedicated OOB readings here; Jupiter and Uranus can cross in rarer windows, while Saturn and Neptune generally remain inside the solar envelope in modern tables.

Two planets are parallel when they share the same declination within a 1° orb (north-north or south-south). Modern declination practice reads parallels as conjunction-like contacts on a second coordinate, especially when they repeat a zodiacal aspect already present.

A contraparallel occurs when two planets have equal but opposite declinations (for example +12° and -12°) within a 1° orb. It functions as a declination-axis opposition: the bodies are matched in intensity but poled against each other across the celestial equator.

The calculator checks the supported ephemeris bodies directly. The curated interpretation cards focus on Moon, Mercury, Venus, Mars, and Pluto because those are the common OOB bodies in modern practice. If Jupiter, Uranus, or another supported body is flagged, treat it as a technical OOB condition even when no dedicated interpretation card is available.

No. Declination is a physical equatorial coordinate. It does not depend on Placidus, Whole Sign, Porphyry, Koch, Campanus, Regiomontanus, or any other house system. This makes declination useful when a birth time is uncertain, because house-dependent signals are the first to degrade under time error and declination is not one of them.

No. A contraparallel matches bodies by declination across the celestial equator. An antiscion matches bodies by ecliptic longitude reflected across the Cancer-Capricorn solstice axis. They often point at the same body pairs but they are computed on different axes and carry slightly different meanings.

We compute declinations from the JPL DE440s planetary ephemeris via ANISE. Out-of-bounds status is flagged at the ±23.4393° J2000 threshold; epoch-of-date obliquity drifts by about 0.013° per century from this value, which is well below the resolution of any traditional OOB claim.