Distance from exact
What Is an Orb in Astrology?
An orb is the allowed distance between the exact mathematical angle of an aspect and the actual separation between two chart points. If two planets are 178° apart, they are 2° away from an exact 180° opposition. An astrologer who allows at least a 2° orb for that pair would count the opposition. Orb rules vary by tradition, planet, aspect, and purpose.
01
Without an orb, almost no aspect would count
Exact angles to the minute are uncommon. Orbs turn aspect geometry into a practical range, but they also introduce judgment. A very wide orb captures more contacts and can make a chart feel crowded; a narrow orb highlights fewer, sharper relationships. Neither choice is neutral, so a calculator should document the limits it uses.
02
Different aspects can have different limits
Many systems allow wider orbs for conjunctions and oppositions than for sextiles, and wider orbs when the Sun or Moon is involved. Velvet Zodiac follows that kind of focused approach: the luminaries receive the full configured limit, while many non-luminary pairs use a slightly tighter maximum. The goal is readability, not a claim that one orb table is universal law.
03
Tight does not mean good
A 0.3° square is tighter than a 5° trine, but that does not make it ‘worse.’ Tightness describes exactness, not moral quality. It often tells you which contacts deserve attention first because the geometric relationship is stronger or more concentrated in the chosen system.
04
Use the same orb rules when comparing results
If you compare two calculators, first check whether they use the same aspect definitions and orb limits. One site may list a contact the other omits simply because the thresholds differ. That is a methodology difference, not necessarily a math error. Consistency matters most when tracking a chart over time.
05
A practical way to keep the term precise
For your own chart work, choose one orb table and keep it stable while comparing results. Changing thresholds until a desired aspect appears makes the method impossible to evaluate. If you later adopt a different system, label the change and rerun the chart rather than quietly mixing two standards.
06
Everyday example
Suppose Venus and Mars are 3.2° away from an exact trine. If a calculator allows a 5° orb for that planet pair and aspect, the contact is included; if the method only allows 3°, it is excluded. Neither decision is meaningful without knowing the rule. Good software therefore makes its orb limits stable and testable, and a careful reader gives tighter contacts more attention before stretching interpretation to every possible wide aspect.
07
Common misunderstanding
A common misunderstanding is that there is one universal orb table accepted by all astrologers. Traditional, modern, natal, synastry, and transit methods can use different limits, and some methods vary by planet or aspect. Wider is not automatically more complete; it can create so many contacts that the chart loses hierarchy. State the orb method, show the actual distance from exact, and avoid pretending a borderline contact has the same emphasis as a near-exact one.
Common questions
What Is an Orb in Astrology? FAQ
What is a tight orb?
There is no universal cutoff, but astrologers commonly describe aspects within roughly 1°–2° as especially tight. The significance still depends on the planets and the method being used.
Why does one calculator show an aspect another misses?
Different tools may use different orb limits, planet sets, or aspect definitions. Compare methodology before assuming one result is wrong.