180° · orb 8° · 170 searches a month

Ascendant Opposition Sun

Read as polarity — and present in 4.44% of random pairings, which is the part usually left out.

Checked against chance

How often this happens anyway

Exact angle 180°
Orb allowed ±8°
Odds by chance 4.44% — about 1 pairing in 23
Ascendant per sign hours
Sun per sign hours
Searched 170/mo · rank 147 of 382

Both planets here move quickly — Ascendant and Sun change position between people born weeks apart. That makes this aspect genuinely specific to the two charts rather than to a generation, which is true of only 59.9% of the combinations people look up.

How the odds are calculated →

What these two planets are doing

Ascendant

The first impression and the manner people meet first.

Sun

The core identity — what a person is when nothing is being performed.

At 180° the question this pairing raises is whether the initial recognition was accurate, set against whether each is comfortable being seen as they actually are. A opposition puts those two demands at odds rather than in agreement, which is why this aspect is read as work rather than ease.

Sun moves 415 times slower than ascendant, so the faster one sets how long the exact angle holds.

If the birth time is wrong

This aspect survives 0.5 hours of error

17.11° per hour — how far Ascendant moves, the faster of the two and therefore the one that decides.
the orb allowed for opposition. Beyond it the aspect is no longer counted at all.
Fragile A birth certificate rounded to the nearest hour can invent or erase this aspect.

Worked out from how far the faster point travels per hour against the orb allowed. Why birth-time accuracy decides which aspects to trust →

Ascendant and Sun at other angles

The same two planets meet at 5 angles that people search for. Same functions, different relationship between them.