Enter planetary longitudes (0° to 360°). Leave fields blank if you do not want to include that body. The calculator will detect major aspects within your selected orb.
What this planetary aspects calculator does
A planetary aspects calculator helps you identify angular relationships between planets. In astrology, these angles are called aspects, and they are used to describe how planetary energies interact. Instead of manually comparing every pair, this tool instantly scans your inputs and returns all major aspect matches within a chosen orb.
This calculator is designed for practical use: you enter longitudes, set an orb, and get a clean list of detected aspects, each with separation and orb distance from exactness.
Major aspects included
- Conjunction (0°): concentrated, amplified, fused energy.
- Sextile (60°): cooperation, skill, opportunities that respond to effort.
- Square (90°): friction, challenge, pressure to act and grow.
- Trine (120°): natural flow, ease, supportive expression.
- Quincunx (150°): adjustment, mismatch, rebalancing.
- Opposition (180°): polarity, reflection, relationship tension and awareness.
How to use the calculator correctly
1) Gather accurate longitudes
Use a charting tool, astrology software, or ephemeris source and copy each planet’s zodiac position as a full 0–360 longitude. If your source gives sign-based values (like 15° Taurus), convert to absolute longitude first.
2) Choose a realistic orb
For a focused reading, try 4° to 6°. If you want a wider scan, increase to 7° to 8°. A very wide orb may produce many weak aspects; a narrow orb emphasizes only the strongest links.
3) Enter at least two planets
You can analyze just a subset (for example, personal planets only) or all ten planets. Blank fields are ignored.
4) Read by tightness
Aspects with smaller orb distance are generally interpreted as stronger. A trine at 0.5° orb usually has more impact than one at 5.8°.
Interpreting your results in context
Aspect lists are powerful, but context matters. For better interpretation quality:
- Blend aspect meaning with planetary symbolism (e.g., Mars + Saturn vs Venus + Jupiter).
- Consider the chart area (houses and angles) where planets are placed.
- Look for repeating patterns: a chart dominated by squares feels different from one dominated by trines.
- Prioritize exact aspects first, then layer wider ones.
Example workflow
Suppose your chart includes Sun at 15°, Moon at 195°, and Jupiter at 16°. The calculator likely finds:
- Sun opposite Moon (nearly exact)
- Sun conjunct Jupiter (very close)
This immediately suggests a strong axis of self vs emotional needs (opposition), combined with a buoyant, expansive solar expression (conjunction with Jupiter).
Tips for better astrological analysis
- Use this calculator as a technical filter, then interpret meaning manually.
- Run separate passes with different orb values to compare “core” and “background” aspects.
- If a result seems surprising, verify the original longitude data for entry errors.
- For relationship astrology, run each chart separately first before comparing synastry links.
Final note
A good planetary aspects calculator saves time, reduces arithmetic errors, and helps you focus on interpretation. Whether you are exploring natal astrology, transits, or chart practice, this tool gives you a fast and reliable starting point.