

Sun opposite Sun at half a degree, and a Venus trine at a tenth.
Precisely opposed
Low in the range for contact across 93 pairs charted (29–86, median 41).
Britney Spears and Colin Farrell compatibility
↓ Below: all 8 aspects named, with orbs
The original source is unknown. No recorded verification, so houses and the rising sign are not shown.
Note on this rating: Birth data via astrotheme.com (Colin_Farrell), Rodden C, accuracy in question, contributed by Sy Scholfield. Time is unreliable: treat houses and angles as unavailable. Nominated Best Actor at the 95th Academy Awards (2023) for The Banshees of Inisherin.
This page compares Sun, Mercury, Venus and Mars, the four placements a birth date alone can place. Moon, Ascendant and Midheaven are left out here by design, not by omission, so nothing on this page is scored against a birth time it cannot trust.
Cross-aspects
Where the two charts actually touch
and 3 more, to 5.16°
Category shape
Five categories, one chart each
Identity
SUN × SUN
core identity dynamic, from Britney Spears's Sun opposition Colin Farrell's Sun
97
Communication
MERCURY × MERCURY
No aspect inside orb. This engine finds no direct communication channel between them.
None
Attraction
VENUS × MARS
No aspect inside orb. Neither Venus reaches the other's Mars within orb.
None
Friction
MARS × MARS
No aspect inside orb. No built-in friction point shows up between the two Mars placements.
None
Values
VENUS × VENUS
No aspect inside orb. Their values neither align nor clash by this measure.
None
Scores rank how close a contact is to exact, not how well two people get along. A high friction score means the two Mars are in tight aspect, which is information, not a warning.
The overlap
Two charts, laid over each other
Britney Spears and Colin Farrell's Sun, Mercury, Venus and Mars are drawn here, the four placements a birth date alone can place with no birth time required. This is a complete chart of what is known, not a partial chart of what is not.
| Thin line, Venus to Mercury | TRINE 0.12° |
| Thick line, Mercury to Venus | OPPOSITION 0.47° |
| House ring, not drawn | |
Why they click
The precision here is unusual. Venus trine Mercury sits at 0.12 degrees, Mercury opposite Venus at 0.47, Sun opposite Sun at 0.54. Three contacts inside two-thirds of a degree is rare in any synastry. Four trines run through Mars and Mercury, describing a genuinely easy line between one chart's drive and the other's thinking. Identity scores highest of the five, built on that near-exact Sun opposition.
Why they clash
An opposition between two Suns half a degree from exact is the defining feature, and oppositions describe people positioned directly across from each other rather than beside. Mercury and Sun both take oppositions from the other chart too. Communication, attraction, friction and values all sit at the floor, so despite eight aspects the engine finds weight in only one category. Precise contact, narrow in what it touches.
What each system says
Twelve systems, two people
The Suns are 179.5° apart, close enough to feed the identity category above.
Rooster and Dragon are in neither the trines nor the clashes.
Frequently asked
Are Britney Spears and Colin Farrell astrologically compatible?
Their charts make 8 cross-aspects, the tightest at 0.12° and 0.47°. Astrology does not score a relationship out of a hundred, and the number on this page counts how much contact two charts make, not how well two people do.
Why isn't there a house ring on the chart above?
At least one of Britney Spears and Colin Farrell doesn't have a curated, non-estimated birth time, so a house placement would be a guess. This page only shows what a birth date alone can place.
What does opposition mean between two charts?
An opposition puts two placements directly across the chart, a pull between two poles that has to be balanced rather than resolved. Britney Spears and Colin Farrell have 4 opposition contacts between them, more than any other type.
Tight contact, mixed valence
Run the full synastry
This page compares Sun, Mercury, Venus and Mars, because those are the four that a birth date alone can place. The synastry calculator runs all ten bodies against each other.