Sun conjunct Sun inside a degree and a half, with Mercury and Mars crossed.
Same axis
Low in the range for contact across 93 pairs charted (29–86, median 41).
Madonna and Sean Penn compatibility
↓ Below: all 5 aspects named, with orbs
Verified by a birth certificate or official record: full chart shown, including houses and the rising sign.
Note on this rating: Birth data via astrotheme.com (Madonna), Rodden AA — birth certificate or birth record, crediting Lois Rodden / Astro-Databank.
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
Category shape
Five categories, one chart each
Identity
SUN × SUN
core identity dynamic, from Madonna's Sun conjunction Sean Penn's Sun
93
Attraction
VENUS × MARS
live spark, from Madonna's Mars trine Sean Penn's Venus
24
Communication
MERCURY × MERCURY
No aspect inside orb. This engine finds no direct communication channel between them.
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
Madonna and Sean Penn'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, Sun to Sun | CONJUNCTION 1.49° |
| Thick line, Mars to Mercury | SQUARE 4.18° |
| House ring, drawn | |
Why they click
Identity is the dominant category by a wide margin, and it rests on Sun conjunct Sun at 1.49 degrees. Two Suns that close describes people working from the same basic material: similar instincts about how to be in a room, similar timing, similar appetite for attention. Mercury conjunct Venus adds warmth to how one of them speaks to the other. Mars trine Venus rounds it out with an easy line between drive and affection.
Why they clash
Mercury and Mars square each other in both directions, at 4.30 and 4.18. That is the same argument running two ways: one person's thinking against the other's drive, and then the reverse. Attraction scores lowest of the five, below even the floor the other categories sit at. A Sun conjunction this tight can read as recognition rather than romance, two people who are alike enough to compete for the same ground.
What each system says
Twelve systems, two people
The Suns are 1.9° apart, close enough to feed the identity category above.
Dog and Rat are in neither the trines nor the clashes.
Shared history
Shared life events
Madonna and Sean Penn marry
Wikidata P26 (spouse) qualifier P580 start time at day precision, claim on Q1744/Q44221. Retrieved 2026-08-12.
Jun 9 – Oct 23, 1985 · 136 days
Madonna
Birth time recorded to the minute · all contacts shown
- Saturn square Sunslow
- Chiron square Moonslow
- Pluto square Venusslow
- Uranus square Moonslow
- North Node trine Moonfast
- North Node conjunction Marsfast
Editorial note · Uranus square Moon
A Uranus square Moon in house 4 transit during this power window pointed to an unconventional or disruptive dynamic within their new home life.
Sean Penn
Birth time recorded to the minute · all contacts shown
Nothing was within orb for Sean Penn on this date.
A quiet chart is a reading, not a gap.
Frequently asked
Are Madonna and Sean Penn astrologically compatible?
Their charts make 5 cross-aspects, the tightest at 1.49° and 4.18°. 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 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. Madonna and Sean Penn have 2 conjunction 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.