One wants roots and the other wants the open road. By the rule of elements, Taurus is earth and Sagittarius is fire, and the rule rejects this pair. Keep that in mind and read on, because the rule answers far less than it seems to.
What this pair has going for it is appetite. Both like eating well, laughing loudly, spending on whatever gives pleasure, and neither is stingy. Sagittarius brings news from the outside world and a happiness that doesn't depend on anything being settled; Taurus brings a place to come back to, and Sagittarius, whatever it says about itself, badly needs a place to come back to. When it works, it's a home where people are made welcome and where they leave having had a great time.
The table every magazine publishes is simple: fire matches fire and air, earth matches earth and water. It was not invented yesterday, and it has a geometric reason, signs of the same element sit 120 degrees apart, and allied elements sit 60 degrees apart. Those are the trine and the sextile, the two aspects that tradition calls harmonious. The compatibility table is the aspect table applied to a single planet.
It puts half the zodiac on each person's list, which already shows how little information that is. And it can be tested against the numbers. I drew a random sample of 600,000 pairs of birth dates between 1966 and 2025, using the same ephemeris that builds charts on this site, and asked: in the pairs the rule approves, do the other pieces follow along?
In the pairs the rule approves, the Moons match in 49.8% of cases; in the ones it rejects, in 50.0%. There is contact between one person's Sun and the other's Moon in 46.4% of both groups, and contact between Venus and Mars in 46.1% and 46.2%. Between the two charts there are, on average, 26.7 contacts in the approved pairs and 26.6 in the rejected ones.
The columns are the same. Knowing that the rule approves or fails your pair tells you nothing about the other person's Moon, nothing about desire, and nothing about how many contacts the two charts have. And 50.0% is exactly what a coin toss would give you.
That does not make the table false. It makes it small: it describes a trait of temperament, read from a single point on the chart. Using it to decide who to date is reading a book by its title's first letter.
They're 150 degrees apart, the quincunx, and it's the angle of mismatch. There's no declared opposition, just two ways of doing things that don't fit together and never become an actual subject. Taurus plans in years and Sagittarius decides the night before; Taurus wants to know what it costs and Sagittarius figures it can be sorted out. This pair's fights are almost never about what happened, they're about the warning: Sagittarius doesn't give one because to Sagittarius it wasn't a big deal, and to Taurus anything that changes the plan is a big deal.
What gives this pair its ground is Sagittarius's Venus, which has a real chance of sitting in Capricorn or Scorpio, signs that understand commitment. And Taurus's Moon decides whether it can stay home alone on a Friday night without that turning into abandonment.
What usually unblocks things: Sagittarius giving a warning. It's not about asking permission, it's saying it ahead of time, because the cost to Taurus isn't the changed plan, it's the shock. And Taurus gains by separating what's truly non-negotiable from what's just a preference, because when everything is non-negotiable, Sagittarius stops asking first. The rule that tends to serve this pair well is simple: a few things fixed and announced in advance, and freedom with the rest.
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Compare your chart with your partner's: where you match, where you clash and what makes the relationship work.
The element rule reads one thing only: the element. Each sign carries two other labels the table ignores, and in both cases they say more about the day-to-day than the element does. The modality, cardinal, fixed or mutable, is the way a person goes into a subject: cardinal starts it, fixed holds it, mutable changes it. And the ruler is the planet that gives the sign its vocabulary.
Taurus is fixed and ruled by Venus; Sagittarius is mutable and ruled by Jupiter.
Fixed with mutable, and here the imbalance is large: Taurus is among the most fixed of the fixed signs and Sagittarius is among the most restless of the mutable ones. The arrangement that tends to work is Taurus holding the structure and Sagittarius having freedom to move inside it, which works as long as Taurus doesn't start feeling like the home base of someone who just passes through.
Venus and Jupiter are the two planets tradition calls benefic, and it's the only pair where both rulers fall into that group. That explains the generosity, and it explains the money trouble: neither one is the planet that says no. Venus spends on what's nice and Jupiter spends on what's big, and a home with no Saturn in charge of the accounts finds this out late. It's worth agreeing in advance on who plays the budget scold, because the post is vacant.
There is one exception to "the table tells you nothing", and it comes down to pure geometry. Venus never moves more than 47.2 degrees from the Sun, it is an inner planet, and from Earth's point of view it stays tied to the Sun's light. Given your sun sign, your Venus can only fall in five signs.
So the distance between two sun signs decides the odds that both Venuses land in the same sign. Measured across the same 600,000 pairs:
When both are of the same sign, which is the conjunction, the two Venuses fall in the same sign in 24.3% of pairs; one sign apart, the semi-sextile, in 19.2%; two apart, the sextile, in 12.9%; three apart, the square, in 5.5%; four apart, the trine, in 0.8%; and five or six apart, the quincunx and the opposition, never.
Taurus and Sagittarius sit 150° apart, a quincunx, and that puts this pair in the 0.0% bracket. In other words: your two Venuses almost never land together, and that is the only thing the distance between your Suns actually determines.
Notice what the table does with the element rule: it cannot follows the rule. Pairs the rule fails come out on top of the list, and pairs it approves come out at the bottom. The Venus link is real, and it is geometric, and it is why the compatibility table sometimes seems to work. It works a little, and not for the reason it claims to.
Four pieces that change everything, and that no sun-sign table can reach:
- Each person's Moon. It is the way you feel, need and settle down, the piece that most decides day-to-day life together. It changes sign every two and a half days.
- The Ascendant. It changes every two hours and depends on the city. Two people born on the same day, both Taurus, can arrive at a party in opposite ways.
- The house each one falls into on the other's chart. The same Venus in your house 5 and your house 12 is passion in one case and a private matter in the other. This layer needs both people's birth time.
- What each one has already lived. Age, past relationships and the timing of the meeting weigh more than any aspect, and none of it is in anyone's chart.
This crossing is what's called synastry, and it needs both people's date, time and city of birth. Comparing sun signs is what's left when you don't have that.
And the limit stated out loud still holds: astrology decides nothing for anyone, doesn't tell you to stay or leave, and doesn't replace conversation or therapy. It gives you vocabulary. A couple who discover that one Moon needs routine and the other needs novelty have gained a better question than they had before.
And the questions that come up most on this subject, with the short answer:
Do Taurus and Sagittarius work? By the rule of elements, no: Taurus is earth and Sagittarius is fire. But that rule reads one point on the chart out of the ten that exist. I measured 600,000 pairs of birth dates: among the ones the rule approves, the Moons match 49.8% of the time; among the ones it rejects, 50.0%. Chance sits at 50%. Your sun signs don't tell you whether the relationship works.
What is the aspect between Taurus and Sagittarius? 150°, which tradition calls a quincunx. That is where the element rule comes from, it is the aspect table applied to a single planet. Signs of the same element sit 120 degrees apart, allied elements sit 60 degrees apart, and the rule fails everything else.
Can a Taurus's Venus be in Sagittarius? It can't. Venus never strays more than 47.2 degrees from the Sun, and Taurus and Sagittarius sit 150° apart, too far apart to fit inside the same window. That window is the only thing your sun sign actually decides about each other's charts.
So what decides whether two people are compatible? The crossing of the two full charts, which is what's called synastry: one person's Moon with the other's Sun, one person's Venus with the other's Mars, and the house each one falls into on the other's chart. None of that comes off a sign chart, it needs both people's date, time and city of birth.
Do any two charts have few contacts between them? Quite the opposite: the average is 26.6 contacts between two charts, with a 6-degree orb, and across 600,000 randomly drawn pairs none came out at zero. That's why "we have so many aspects!" means nothing on its own. What a reading does with the 26.6 is weigh them, not add them up.
In short, this pair reads like this:
Keywords roots and the open road, the warning, who minds the money
The numbers on this page hold for any pair of people, because they come from the sky. What does not show up in them is your case. Two charts bring 26.6 contacts on average, and what a reading does with them is weigh, which are exact, which involve the Moon, which fall in a house that matters. Without both birth dates, times and cities, this page describes two signs, not two people.
