⚵ Free Juno Sign Calculator
Umbriel's free Juno sign calculator finds your natal Juno (the asteroid astrologers read for committed partnership), with its sign, degree and house, from your birth date, time and place.
Free, no account, no email. Runs in your browser.
14160+ people cast their chart here in the last 30 days.
No account, no email. Juno is worked out from its own orbit, to within about a degree.
MODERNA modern technique: twentieth-century astrology.
- What you'll needBirth date (time and place for the house)
- What you getYour Juno sign and degree, the house it falls in, whether it was retrograde, and the rest of your birth chart
- CostFree, no account required
What a Juno sign is
Juno is the third asteroid ever found, discovered by Karl Harding at Lilienthal on 1 September 1804, and named for the Roman goddess of marriage. Your Juno sign is where it stood at your birth. Modern astrologers read it for committed partnership: what you need a partner to be, what you will not do without in a long relationship, and how you behave inside one. It is not a forecast of who you will marry.
Deeper.a one-breath read
Asteroids came into astrology late. Eleanor Bach published the first ephemeris of the four large ones in 1973, and Demetra George's Asteroid Goddesses (1986) gave Juno the reading most astrologers use today. That makes it a modern technique, and it is labelled as one here.
Juno takes about four and a third years to go round the Sun, but its orbit is tilted and stretched, so its pace through the signs is uneven: it can cross a sign in a couple of months or stay in one for half a year or more. Like every planet it turns retrograde from time to time, for about three months at a stretch.
How Umbriel computes it
Deeper.a one-breath read
Umbriel computes Juno's position from its orbital elements, corrected for the pull of Jupiter and Saturn, for the moment of your birth, and converts it to a longitude seen from Earth. That is accurate to within about a degree, which is more than enough for the sign almost always; when Juno is within a degree of a sign edge, Umbriel says so and names both signs rather than pretending to a precision it does not have. The house needs your birth time and place; without a time, Umbriel gives the sign and leaves the house out. Juno moves slowly enough that the date alone nearly always settles the sign.
What's in your result
Deeper.a one-breath read
- Sign and degreeWhere Juno stood at your birth, with a plain warning if it sits within a degree of the next sign.
- The house it falls inThe part of life the partnership story tends to play out in. This is the part that needs your birth time.
- Retrograde or directWhether Juno was moving backwards at your birth.
- Ceres, Pallas and Vesta beside itThe other three large asteroids, one tap away in the same chart.
- Your whole chartVenus, Mars and the 7th house, the older places astrology reads relationships from, on the same page.
Don’t know your birth time?
Deeper.a cup-of-tea read
Know it roughly? Give the time and say where it came from (a certificate, a parent’s memory, or something rough like “early morning”), and your chart tells you what could change within that window.
Don’t know it at all? Umbriel does not fill the gap with a guess. Tick “I don’t know the time at all” and it checks your whole birthday, hour by hour, then tells you two things: which placements are the same whatever time you were born, as exact as they would be if you knew the minute, and which are down to two signs, both named, so you know what a parent’s memory would settle.
The Ascendant, the Midheaven and the houses are left out rather than approximated. A birth time is the one thing they cannot be computed without, and an approximate Rising sign that looks exact is worse than no Rising sign at all.
Common questions
What does my Juno sign mean?
Modern astrology reads Juno for committed partnership: what you need from a long-term partner and how you behave inside a commitment. A Juno in Gemini is often read as needing conversation, a Juno in Capricorn as needing reliability. Best held as a question to think with, not a description of a future spouse.
Does Juno show who I will marry?
No. It is read for what you need and offer in a committed relationship, not for a person's sign or appearance. Some people find a partner's Sun or Moon in their Juno sign, and some do not; nothing here predicts a marriage.
Juno sign vs Venus sign: what is the difference?
Venus is read for attraction, pleasure and what you love; Juno for commitment and what you need to stay. Many charts have them in different signs, which is often read as the difference between who you fall for and who you build a life with.
Can I find my Juno sign without a birth time?
Almost always, yes. Juno moves less than half a degree a day, so the date settles the sign unless Juno was right on a sign edge that day. What you cannot get without a time is the house, and Umbriel leaves it out rather than guessing.
How accurate is Juno here?
To within about a degree. Umbriel computes Juno from its orbit with the pull of Jupiter and Saturn included, which is enough for the sign except within a degree of an edge, and there Umbriel names both signs.
Is this Juno sign calculator free?
Yes: sign, degree, house and retrograde status, with no account and no email, calculated in your own browser.
What if I don’t know my birth time?
Umbriel checks your whole birthday hour by hour and separates what is certain from what is not. Placements that are the same whatever time you were born are shown as exact. Placements that changed sign during the day are shown as two named signs, so you know what a parent's memory would settle. The Ascendant, Midheaven and houses are left out rather than approximated. They cannot be computed without a time, and an approximate Rising sign that looks exact is worse than none.
Do I need an account or an email address?
No. There is no sign-up, no email capture and no free trial. Enter your details and the result is drawn in your own browser.
Go deeper
Every one of these is a page in its own right — written out, not generated on the fly.
Related free tools
Next doorVenus Sign CalculatorUmbriel's free Venus sign calculator finds your natal Venus (its sign, exact degree and house) from your birth date, time and place.Prints in the head of this page, all public domain except where stated: Jupiter and Juno Seated in the Clouds, from Three Paired Gods and Goddesses, Jan Saenredam, c. 1594, Art Institute of Chicago; Urania's Mirror, Sidney Hall, 1825, Library of Congress via Wikimedia Commons; Johannes Hevelius, Machina coelestis, Danzig, 1673, Observatoire de Paris copy via Gallica (BnF). Ground: anonymous lace-paper valentine, mid 19th century, The Metropolitan Museum of Art (CC0).
Further down the page: Peter Paul Rubens, The Wedding of Peleus and Thetis, 1636, Art Institute of Chicago. The next-door print comes from that page's own head. The pointing hand: a pointing hand, after a medieval manuscript margin (line art by Jerimee).
Umbriel offers every system here as a set of prompts to think with, never as a statement of fact about who you are. Take what's useful, leave the rest.