

Sun conjunct Sun, and almost nothing else
One shared axis
Muhammad Ali and Joe Frazier compatibility
↓ Below: all 37 contacts named, with orbs
Sources conflict on the birth time. No recorded verification, so houses and the rising sign are not shown.
Note on this rating: Birth time 07:00, Rodden DD (conflicting sources) via astrotheme.com. Treat angle-based placements with caution.
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
Muhammad Ali’s Pluto and Joe Frazier’s Mars are 0.09 degrees from an exact sextile.
Joe Frazier’s birth time is not exact, so the Moon is not scored and the ascendant axis and house ring are not drawn for either chart. Sun through Pluto move at most about two degrees in a day, so every contact below is the same whatever the time.
Sun through Pluto, one chart on each axis
Muhammad Ali ↓ × Joe Frazier →
| Planet | Sun | Mercury | Venus | Mars | Jupiter | Saturn | Uranus | Neptune | Pluto |
|---|---|---|---|---|---|---|---|---|---|
| Sun | Sun Conjunction Sun | Sun Quincunx Jupiter | |||||||
| Mercury | Mercury Sextile Venus | Mercury Opposition Pluto | |||||||
| Venus | Venus Opposition Jupiter | Venus Trine Saturn | |||||||
| Mars | Mars Quincunx Neptune | Mars Square Pluto | |||||||
| Jupiter | Jupiter Quincunx Mercury | Jupiter Opposition Venus | Jupiter Conjunction Mars | Jupiter Conjunction Uranus | Jupiter Sextile Pluto | ||||
| Saturn | Saturn Trine Sun | Saturn Square Jupiter | |||||||
| Uranus | Uranus Trine Sun | Uranus Square Jupiter | |||||||
| Neptune | Neptune Trine Mars | Neptune Trine Uranus | Neptune Conjunction Neptune | ||||||
| Pluto | Pluto Sextile Mars | Pluto Sextile Uranus | Pluto Sextile Neptune | Pluto Conjunction Pluto |
24 of the 37 contacts fall between Sun and Pluto, and all 24 are in the grid. A boxed cell is within one degree. The other 13 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.
Muhammad Ali inner ring, Joe Frazier 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.
- Muhammad Ali's Pluto sextile Joe Frazier's Mars
- Muhammad Ali's Venus trine Joe Frazier's Saturn
- Muhammad Ali's Pluto sextile Joe Frazier's Uranus
- Muhammad Ali's Chiron quincunx (mutual) Joe Frazier's Mercury
- Muhammad Ali's Saturn trine Joe Frazier's Sun
- Muhammad Ali's Pluto sextile Joe Frazier's Neptune
- Muhammad Ali's Uranus square Joe Frazier's Jupiter
- Muhammad Ali's Jupiter opposition (mutual) Joe Frazier's Venus
- Muhammad Ali's Jupiter quincunx Joe Frazier's Mercury
Personal planets
10 of 37A personal planet on either side. These are the contacts that describe these two people rather than their birth years.
- Muhammad Ali's Venus opposition (mutual) Joe Frazier's Jupiter
- Muhammad Ali's Mars quincunx Joe Frazier's Neptune
- Muhammad Ali's Sun quincunx Joe Frazier's Jupiter
- Muhammad Ali's Mercury sextile Joe Frazier's Venus
- Muhammad Ali's Mars square Joe Frazier's Pluto
- Muhammad Ali's Neptune trine Joe Frazier's Mars
- Muhammad Ali's Uranus trine Joe Frazier's Sun
- Muhammad Ali's Mercury opposition Joe Frazier's Pluto
- Muhammad Ali's Sun conjunction Joe Frazier's Sun
- Muhammad Ali's Jupiter conjunction Joe Frazier's Mars
Shared generation
6 of 37Jupiter through Pluto on both sides. Born 23 months 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.
- Muhammad Ali's Pluto conjunction Joe Frazier's Pluto
- Muhammad Ali's Jupiter sextile Joe Frazier's Pluto
- Muhammad Ali's Saturn square Joe Frazier's Jupiter
- Muhammad Ali's Neptune conjunction Joe Frazier's Neptune
- Muhammad Ali's Neptune trine Joe Frazier's Uranus
- Muhammad Ali's Jupiter conjunction Joe Frazier's Uranus
Chiron and the lunar nodes
12 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 12 are the rest.
- Muhammad Ali's Mercury quincunx (mutual) Joe Frazier's Chiron
- Muhammad Ali's North node trine Joe Frazier's Mercury
- Muhammad Ali's North node conjunction (mutual) Joe Frazier's Chiron
- Muhammad Ali's Chiron conjunction (mutual) Joe Frazier's North node
- Muhammad Ali's Chiron trine Joe Frazier's Venus
- Muhammad Ali's Pluto conjunction Joe Frazier's North node
- Muhammad Ali's North node square Joe Frazier's Venus
- Muhammad Ali's Mars square Joe Frazier's North node
- Muhammad Ali's Jupiter square Joe Frazier's Chiron
- Muhammad Ali's Chiron conjunction Joe Frazier's Pluto
- Muhammad Ali's Saturn trine Joe Frazier's Chiron
- Muhammad Ali's Mercury opposition Joe Frazier's North node
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
Sun conjunct Sun is the whole structure here. Wide at 6.17 degrees, but it puts both men in the same solar territory: the same appetite for the spotlight, the same read on what a public life is for. Ali's Mercury sextiles Frazier's Venus, one soft secondary link that makes the pair legible to each other outside the ring. Two aspects in total, which is about as thin as a reading gets.
Why they clash
Two charts, two aspects. There is no Mercury to Mercury contact, no Venus to Venus, no Mars to Mars, so four of the five categories sit at the no-contact baseline. The one thing they share is the Sun, and a conjunction between Suns is not agreement: it is occupancy of the same ground. Two people wanting the same position, with no verbal channel to negotiate it and no shared Venus to make room. The chart gives them one axis and no mechanism for splitting it.
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 6.2° apart, close enough to feed the identity category 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.
Shared history
Shared life events
Fight of the Century: Ali vs Frazier at Madison Square Garden
Frazier handed Ali his first professional defeat over fifteen rounds; both men were undefeated going in.Source (opens in new tab)
10 passages · 2 charts
Transit detailCollapse
Nov 2, 1970 – Jul 12, 1971 · 252 days
Muhammad Ali
Birth time recorded to the minute · all contacts shown
- Uranus trine Mercuryslow
- Pluto trine Sunslow
- Saturn square Venusslow
- Uranus trine Moonslow
- Saturn square Ascendantslow
- North Node conjunction Venusfast
Editorial note · Saturn square Ascendant
Arriving 18 days after the bout, Saturn squaring the Ascendant from the tenth house marked a grueling power window of public reckoning and sobering career gravity.
Joe Frazier
Birth time estimated · Sun, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto contacts only
- Uranus sextile Venusslow
- Uranus square Mercuryslow
- Neptune opposition Marsslow
- Jupiter opposition Marsfast
Moon, Ascendant and Midheaven contacts are not shown for Joe Frazier, and no house is named — those depend on a birth time recorded to the minute, and this one is an estimate.
Editorial note · Jupiter opposition Mars
Arriving 48 days after the bout, Jupiter opposition Mars reflected the colossal athletic struggle and the outsized rivalry left in its wake.
Thrilla in Manila: Ali vs Frazier III
Their third and final meeting, stopped before the fifteenth round at the Araneta Coliseum.Source (opens in new tab)
9 passages · 2 charts
Transit detailCollapse
May 8, 1975 – Feb 24, 1976 · 292 days
Muhammad Ali
Birth time recorded to the minute · all contacts shown
- Chiron square Sunslow
- Uranus opposition Marsslow
- Saturn square Marsslow
- Jupiter sextile Venusfast
- North Node square Venusfast
- Jupiter trine Ascendantfast
Joe Frazier
Birth time estimated · Sun, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto contacts only
- Neptune conjunction Venusslow
- North Node sextile Sunfast
- Jupiter square Sunfast
Moon, Ascendant and Midheaven contacts are not shown for Joe Frazier, and no house is named — those depend on a birth time recorded to the minute, and this one is an estimate.
Editorial note · Jupiter square Sun
Peaking two days after the brutal bout, Jupiter square Sun framed this titanic victory as a moment of overwhelming triumph pushed to the absolute limit of physical endurance.
Frequently asked
Are Muhammad Ali and Joe Frazier astrologically compatible?
Their charts make 37 cross-aspects, the tightest at 0.09° and 0.37°. 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 Muhammad Ali and Joe Frazier 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 conjunction mean between two charts?
A conjunction puts two placements at nearly the same degree, so their energies blend into one signal rather than two. Muhammad Ali and Joe Frazier have 9 conjunction contacts between them, more than any other type.
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.