Four aspects, all involving Venus or Mars, and nothing else registers.
Charge only
Laura Dern and Renny Harlin compatibility
↓ Below: all 4 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: Birth date 1959-03-15 from Wikidata Q318712 (day precision) and the English Wikipedia article, which agree. Birth city Riihimäki, Finland from Wikidata P19. Birth time unknown, so Rodden X and the time is an estimate.
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
The overlap
Two charts, laid over each other
Laura Dern and Renny Harlin'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, Sun to Venus | SEXTILE 1.78° |
| Thick line, Venus to Mars | SQUARE 2.20° |
| House ring, drawn | |
Why they click
Every contact here runs between Venus and Mars, or from a Sun into one of them. Sun sextile Venus at 1.78 is the tightest and the friendliest. Attraction scores 85, well clear of everything else in this chart, built on Venus square Mars and Mars opposite Venus working the same pairing from both directions.
Why they clash
Identity, communication, friction and values all sit at the floor. There is no Sun-to-Sun contact, no Mercury contact of any kind, and nothing linking what either person thinks matters. Four aspects, all in one register. On this scale the chart describes chemistry with no scaffolding around it.
What each system says
Twelve systems, two people
The Suns are 32.8° apart, outside orb of any aspect, which is why identity reads as an empty channel above.
Goat and Pig are in neither the trines nor the clashes.
Guna Milan: 30.5 of 36
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.
30.5 of 36 points
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.
Frequently asked
Are Laura Dern and Renny Harlin astrologically compatible?
Their charts make 4 cross-aspects, the tightest at 1.78° and 2.2°. 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 sextile mean between two charts?
A sextile puts two placements in a supportive relation that usually needs some initiative to activate. Laura Dern and Renny Harlin have one sextile between them.
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.