Free Declination Chart Calculator (Right Ascension & Declination)
Your declination chart plots each planet by how far north or south of the celestial equator it sat at birth, the same coordinate astronomers use for stars, instead of the zodiac position most charts show.How it works ↓
Fill in the details above and compute to see your result here.
Most birth charts plot planets by ecliptic longitude. Their position along the zodiac belt. This calculator instead uses the equatorial coordinate frame: right ascension and declination, the same system astronomers use to locate stars, which reveals parallel and contra-parallel aspects invisible on a standard chart.
This uses declination and right ascension instead of the zodiac belt
Most charts plot planets by ecliptic longitude, position along the zodiac belt. This chart instead uses the equatorial coordinate frame: declination (north/south of the celestial equator, like latitude) and right ascension, the same system astronomers use to locate stars.
There are no house placements in this frame
House systems are built from the ecliptic and horizon at your birth location, and that math does not translate into an equatorial declination/right-ascension view, so no houses are shown here. Your standard birth chart is the place to look for house placements.
Parallel and contra-parallel are the aspects here
Two planets at the same declination are parallel, read as acting like a hidden conjunction. Two planets at equal and opposite declination, one as far north as the other is south, are contra-parallel, read as acting like a hidden opposition.
A parallel can connect planets with no conventional aspect
Two planets can sit far apart in zodiac longitude and sign, showing no conventional aspect on a standard chart, while still sharing the exact same declination. That parallel contact is invisible if you only look at longitude, which is exactly what this view is for.
Why check this in addition to a normal chart
This view complements your standard chart rather than replacing it. It surfaces a category of contact (parallel and contra-parallel) that ecliptic longitude alone cannot show.
Frequently Asked Questions
What is declination in astrology?
How far north or south of the celestial equator a planet sits, similar to latitude on Earth. It is the basis for parallel and contra-parallel contacts, which are invisible on a standard ecliptic-longitude chart.
Can two planets be parallel and also in a standard aspect?
Yes, parallel and contra-parallel are calculated independently of longitude-based aspects, so a pair of planets can show both, either, or neither at the same time.