Attraction scores 97 on a Venus-Mars opposition two-thirds of a degree from exact.
Strong pull
Britney Spears and Kevin Federline compatibility
↓ Below: all 37 contacts 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 the nine bodies a birth date alone can place, Sun through Pluto, and lists the Chiron and lunar node contacts alongside them. The Moon is drawn as the span it could have moved through and is scored in nothing here; the ascendant axis and the house ring are left out by design, not by omission, so nothing on this page is scored against a birth time it cannot trust.
The overlap
Where the two charts touch
Britney Spears’s Saturn and Kevin Federline’s Mercury are 0.09 degrees from an exact opposition.
Both birth times are exact, so the Moon joins Sun through Pluto on both axes, and every contact also carries the house it falls in on the other person’s chart. The ascendant axis and the house ring are drawn.
Sun through Pluto plus the Moon, one chart on each axis
Britney Spears ↓ × Kevin Federline →
| Planet | Sun | Mercury | Venus | Mars | Jupiter | Saturn | Uranus | Neptune | Pluto | Moon |
|---|---|---|---|---|---|---|---|---|---|---|
| Sun | Sun Trine Venus | |||||||||
| Mercury | Mercury Trine Sun | |||||||||
| Venus | Venus Square Mercury | Venus Opposition Mars | Venus Quincunx Jupiter | Venus Quincunx Saturn | ||||||
| Mars | Mars Opposition Sun | Mars Sextile Mars | Mars Square Jupiter | Mars Square Neptune | ||||||
| Jupiter | Jupiter Quincunx Sun | Jupiter Trine Jupiter | ||||||||
| Saturn | Saturn Opposition Mercury | Saturn Opposition Venus | Saturn Square Mars | Saturn Sextile Neptune | Saturn Conjunction Pluto | |||||
| Uranus | Uranus Trine Sun | |||||||||
| Neptune | Neptune Trine Mercury | Neptune Quincunx Mars | Neptune Opposition Jupiter | Neptune Trine Saturn | Neptune Conjunction Neptune | |||||
| Pluto | Pluto Opposition Mercury | Pluto Square Mars | Pluto Trine Jupiter | Pluto Sextile Saturn | ||||||
| Moon |
27 of the 37 contacts fall between Sun and Pluto, and all 27 are in the grid. A boxed cell is within one degree. The other 10 contacts involve Chiron and the lunar nodes and are listed below, 1 of them in the tight layer.
A cell is a plain glyph. The aspect it names is a Codex Link in the sentences above.
Britney Spears inner ring, Kevin Federline outer ring, with the contacts inside one degree drawn. 8 of them are between Sun and Pluto; the rest involve bodies that are not on either ring.
All 37 contacts, in four layers
Within one degree
9 of 37The contacts closest to exact, whichever bodies they involve. 1 of these are Chiron or lunar node contacts, so they are named here and are not in the grid above. Tightest first, which is the only order that holds for every pair.
- Britney Spears's Saturn opposition Kevin Federline's Mercury
- Britney Spears's Jupiter quincunx Kevin Federline's Sun
- Britney Spears's Uranus trine Kevin Federline's Sun
- Britney Spears's Neptune quincunx Kevin Federline's Mars
- Britney Spears's Venus quincunx Kevin Federline's Saturn
- Britney Spears's Mercury sextile Kevin Federline's North node
- Britney Spears's Neptune trine Kevin Federline's Saturn
- Britney Spears's Venus opposition Kevin Federline's Mars
- Britney Spears's Saturn sextile Kevin Federline's Neptune
Personal planets
13 of 37A personal planet on either side. These are the contacts that describe these two people rather than their birth years.
- Britney Spears's Mars sextile Kevin Federline's Mars
- Britney Spears's Pluto square Kevin Federline's Mars
- Britney Spears's Venus quincunx Kevin Federline's Jupiter
- Britney Spears's Saturn opposition Kevin Federline's Venus
- Britney Spears's Mars square Kevin Federline's Jupiter
- Britney Spears's Mercury trine Kevin Federline's Sun
- Britney Spears's Neptune trine Kevin Federline's Mercury
- Britney Spears's Mars square Kevin Federline's Neptune
- Britney Spears's Saturn square Kevin Federline's Mars
- Britney Spears's Sun trine Kevin Federline's Venus
- Britney Spears's Venus square Kevin Federline's Mercury
- Britney Spears's Pluto opposition Kevin Federline's Mercury
- Britney Spears's Mars opposition Kevin Federline's Sun
Shared generation
6 of 37Jupiter through Pluto on both sides. Born 4 years apart, these two have their outer planets in nearly the same degrees, so anyone born near them shares most of this group. Listed because it is real, kept apart because it says little about the pair.
- Britney Spears's Pluto sextile Kevin Federline's Saturn
- Britney Spears's Pluto trine Kevin Federline's Jupiter
- Britney Spears's Neptune opposition Kevin Federline's Jupiter
- Britney Spears's Jupiter trine Kevin Federline's Jupiter
- Britney Spears's Saturn conjunction Kevin Federline's Pluto
- Britney Spears's Neptune conjunction Kevin Federline's Neptune
Chiron and the lunar nodes
9 of 37A birth date places these too, and they are not drawn in the grid above. The 1 inside one degree are in the tight layer; these 9 are the rest.
- Britney Spears's Chiron quincunx Kevin Federline's Neptune
- Britney Spears's North node conjunction Kevin Federline's Mars
- Britney Spears's Mercury quincunx Kevin Federline's Chiron
- Britney Spears's Jupiter opposition Kevin Federline's Chiron
- Britney Spears's Uranus quincunx Kevin Federline's Chiron
- Britney Spears's Chiron opposition Kevin Federline's Uranus
- Britney Spears's North node square Kevin Federline's Mercury
- Britney Spears's Chiron square Kevin Federline's Saturn
- Britney Spears's Pluto opposition Kevin Federline's Chiron
Trines and sextiles are soft, squares, oppositions and quincunxes hard. A conjunction depends on which two bodies meet, so it carries no tone here.
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
This is what comparing two charts system by system looks like: the same birth data on both sides, read against each other one system at a time.
The Suns are 111.1° apart, outside orb of any aspect, which is why identity reads as an empty channel above.
A second tradition
Guna Milan (Ashtakoot)
Guna Milan is the compatibility method used in Vedic matchmaking, traditionally consulted before an arranged marriage. It scores eight factors between two Moon placements on a 36-point scale, shown here as what this one tradition reads: not a verdict, and not averaged with the Western reading above, which may disagree.
The reading
4.5 of 36
Two things stated plainly rather than left silent: Varna and Vashya use a directional rule from traditional bride/groom roles, applied here in the order the two people are listed on this page rather than assigning either role. Bhakoot dosha's most common cancellation, matching rashi lords, is applied; Nadi dosha carries no cancellation here, though same-nakshatra-different-pada is sometimes cited elsewhere as easing it. Mangal (Kuja) dosha is a separate check and isn't part of this reading.
Shared history
Shared life events
Kevin Federline and Britney Spears begin a relationship
nothing in force
No dated transit window covers this date in the charts of Britney Spears and Kevin Federline.
A quiet chart is a reading, not a gap.
Kevin Federline and Britney Spears end their relationship
nothing in force
No dated transit window covers this date in the charts of Britney Spears and Kevin Federline.
A quiet chart is a reading, not a gap.
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 (opens in new tab)
12 passages · 2 charts
Transit detailCollapse
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
Editorial note · Jupiter trine Venus
Jupiter trine Venus in house 12 during Spears and Federline's wedding reflected a harmonious and expansive union, possibly with a private aspect.
No dated window is recorded for this transit, so it isn't among the passages drawn here.
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
Editorial note · Jupiter sextile Mars
The Jupiter sextile Mars in house 12 transit coincided with a private, yet expansive, energetic union.
No dated window is recorded for this transit, so it isn't among the passages drawn here.
Kevin Federline and Britney Spears marry
14 passages · 2 charts
Transit detailCollapse
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
Two days after the wedding, Jupiter met the Ascendant in the first house, amplifying his public persona and marking a massive new chapter.
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 · Neptune trine Ascendant
Neptune trined the Ascendant from the fourth house 18 days after the wedding, casting an idealized, dreamlike glow over their newly established domestic life during a powerful window of personal change.
Kevin Federline and Britney Spears divorce
6 passages · 2 charts
Transit detailCollapse
May 2 – Oct 27, 2007 · 178 days
Britney Spears
Birth time recorded to the minute · all contacts shown
- Chiron conjunction Moonslow
- Jupiter conjunction Sunfast
- North Node square Mercuryfast
- North Node square Sunfast
Editorial note · North Node square Sun
Occurring 44 days before the divorce, North Node square the 6th-house Sun signaled a karmic reckoning in daily life and personal identity, framing the eventual legal split.
Kevin Federline
Birth time recorded to the minute · all contacts shown
- Neptune sextile Mercuryslow
- Jupiter sextile Ascendantfast
Frequently asked
Are Britney Spears and Kevin Federline astrologically compatible?
Their charts make 37 cross-aspects, the tightest at 0.09° and 0.12°. 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 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 Kevin Federline have 9 opposition contacts between them, more than any other type.
Sources & further reading
Tight contact, mixed valence
Run the full synastry
This page compares Sun through Pluto, the bodies a birth date alone can place. The synastry calculator runs all ten bodies against each other.