Three soft angles and no hard edges
Live spark
Low in the range for contact across 93 pairs charted (29–86, median 41).
Venus Williams and Serena Williams compatibility
↓ Below: all 3 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 time 14:12, Rodden AA (birth certificate) via astrotheme.com, 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
Attraction
VENUS × MARS
live spark, from Venus Williams's Mars sextile Serena Williams's Venus
44
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
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
Venus Williams and Serena Williams'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.
| Thin line, Mars to Venus | SEXTILE 1.61° |
| Thin line, Sun to Mercury | TRINE 2.86° |
| House ring, drawn | |
Why they click
Mars sextiles Venus at 1.61 degrees, Sun trines Mercury at 2.86, and Mercury trines Venus at 4.63. Attraction reads highest of the five categories at 44. Every contact these charts make is a supportive one, describing a pairing that runs warm and unforced.
Why they clash
There is no square, opposition, or conjunction anywhere in this synastry. Four of the five categories sit at the floor of 30. Charts that never meet at a hard angle also never generate the pressure that forces a matter to a decision, so what looks frictionless from outside is mostly an absence of contact.
What each system says
Twelve systems, two people
The Suns are 97° apart, outside orb of any aspect, which is why identity reads as an empty channel above.
Monkey and Rooster are in neither the trines nor the clashes.
Shared history
Shared life events
Beats Serena in the first all-Williams US Open final
Venus defeated Serena 6-2, 6-4 in the first Grand Slam final contested by two sisters in the Open era, and the first US Open women's final played in American television prime time.Tennis.com, 'Throwback Thursday: An all-Williams 2001 US Open final'
May 10, 2001 – Jan 7, 2002 · 242 days
Venus Williams
Birth time recorded to the minute · all contacts shown
- Pluto sextile Ascendantslow
- Uranus trine Venusslow
- Saturn trine Ascendantslow
- Chiron opposition Venusslow
- Jupiter square Ascendantfast
Editorial note · Saturn trine Ascendant
Saturn trine the Ascendant in the ninth house highlighted a peak of disciplined mastery and poise as she claimed a historic championship on the global stage.
Serena Williams
Birth time recorded to the minute · all contacts shown
- Saturn sextile Marsslow
- Chiron square Moonslow
- North Node sextile Ascendantfast
- North Node square Sunfast
Editorial note · Saturn sextile Mars
Saturn sextile Mars in the second house reflected disciplined athletic focus and steady physical composure as she claimed a historic championship title.
Frequently asked
Are Venus Williams and Serena Williams astrologically compatible?
Their charts make 3 cross-aspects, the tightest at 1.61° and 2.86°. 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. Venus Williams and Serena Williams have 2 trine contacts between them, more than any other type.
Exact, and all soft
Read the relationship as one chart
This page compares Sun, Mercury, Venus and Mars, because those are the four that a birth date alone can place. With no hard contact between the two, a composite chart, the midpoint of both, often reads clean.