Attraction scores 97 on a Venus-Mars opposition two-thirds of a degree from exact.
Strong pull
Middle of the range for contact across 93 pairs charted (29–86, median 41).
Britney Spears and Kevin Federline compatibility
↓ Below: all 6 aspects named, with orbs
Confirmed by the person or someone close to them: full chart shown, including houses and the rising sign.
Note on this rating: From memory or autobiography, via AstroTheme.
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 1 more, to 7.85°
Category shape
Five categories, one chart each
Attraction
VENUS × MARS
live spark, from Britney Spears's Venus opposition Kevin Federline's Mars
97
Friction
MARS × MARS
friction point, from Britney Spears's Mars sextile Kevin Federline's Mars
48
Identity
SUN × SUN
No aspect inside orb. Their core identities read independently of each other here.
None
Communication
MERCURY × MERCURY
No aspect inside orb. This engine finds no direct communication channel between them.
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 Kevin Federline's Sun, Mercury, Venus, Mars and Moon are drawn here, along with the house ring and ascendant axis both charts support. This is a complete chart of what is known, not a partial chart of what is not.
| Thick line, Venus to Mars | OPPOSITION 0.66° |
| Thin line, Mars to Mars | SEXTILE 1.17° |
| House ring, drawn | |
Why they click
Venus opposite Mars at 0.66 degrees is the engine of this chart and the reason attraction is the highest-scoring category by a wide margin. Venus and Mars in hard aspect is the classic signature of physical charge, and an opposition that tight is about as direct as the contact gets. Mars sextile Mars at 1.17 adds compatible pace alongside it. Sun trine Venus and Mercury trine Sun round it out with genuine warmth.
Why they clash
Identity, communication and values all sit at the floor of the scale. That is the whole story: an unusually strong attraction signal with nothing underneath it registering. Mars also opposes the other Sun at nearly eight degrees, and Venus squares Mercury, so what tension exists collects around drive and speech. A chart weighted this heavily toward one category describes a pull that is specific rather than general.
What each system says
Twelve systems, two people
The Suns are 111.1° apart, outside orb of any aspect, which is why identity reads as an empty channel above.
Rooster and Horse are in neither the trines nor the clashes.
Shared history
Shared life events
Spears and Federline hold their wedding ceremony
The couple married in a surprise ceremony in Studio City, California, about three months after they began dating. They were not legally married until October, the paperwork having been delayed while a prenuptial agreement was finalised.Source ↗
Apr 12, 2004 – Feb 24, 2005 · 318 days
Britney Spears
Birth time recorded to the minute · all contacts shown
- Saturn opposition Venusslow
- Uranus square Mercuryslow
- Uranus trine Midheavenslow
- Saturn sextile Marsslow
- Neptune conjunction Moonslow
- North Node sextile Midheavenfast
Kevin Federline
Birth time recorded to the minute · all contacts shown
- Saturn conjunction Marsslow
- Pluto trine Mercuryslow
- Chiron square Mercuryslow
- Neptune trine Ascendantslow
- Jupiter opposition Sunfast
- North Node trine Moonfast
The marriage becomes legal
The couple became legally married on 6 October, eighteen days after the ceremony, once the prenuptial agreement was complete.Source ↗
Apr 12, 2004 – Apr 1, 2005 · 354 days
Britney Spears
Birth time recorded to the minute · all contacts shown
- Saturn opposition Venusslow
- Uranus square Mercuryslow
- Uranus trine Midheavenslow
- Neptune conjunction Moonslow
- North Node sextile Midheavenfast
- Jupiter square Midheavenfast
- Jupiter conjunction Ascendantfast
Editorial note · Jupiter conjunction Ascendant
Jupiter conjunct Ascendant marked a personal expansion and public affirmation as the marriage became legal.
Kevin Federline
Birth time recorded to the minute · all contacts shown
- Saturn conjunction Marsslow
- Pluto trine Mercuryslow
- Chiron square Mercuryslow
- Neptune trine Ascendantslow
- Uranus opposition Moonslow
- North Node trine Moonfast
- Jupiter opposition Sunfast
Editorial note · Saturn conjunction Mars
This power window, with Saturn-Mars in house 10, reflected the formal, public establishment of the marriage.
Frequently asked
Are Britney Spears and Kevin Federline astrologically compatible?
Their charts make 6 cross-aspects, the tightest at 0.66° and 1.17°. 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.
What does trine mean between two charts?
A trine puts two placements in easy relation, a flow that takes little effort to access. Britney Spears and Kevin Federline have 2 trine contacts between them, more than any other type.
Sources & further reading
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.