The Big Three
Your Big Three: Sun, Moon, and Rising
Your Sun, Moon, and rising sign each answer a different question, from what you want to express to how you enter a room.
⟶Big Three Astrology: Your Sun, Moon and Rising
Your Sun, Moon and rising sign are the three placements everyone asks about first, and together they explain how you can feel like a different person at work, at home and at a party. Enter your birth details and get all three, with your Venus and Mars as extras.
What each of the three covers
Your Sun sign is the identity you grow into and what you want to express. Your Moon sign is what you need to feel okay, and your rising sign is how you meet a new person or a new situation. They can all match, but they often don't, and the differences are where the good stuff is. Venus comes along for how you love and Mars for how you go after what you want.
What you need to enter
The Sun changes signs about once a month, so a birth date settles it unless you were born on the day it switched. The Moon changes signs every two to two and a half days, so it needs a time only when it switched on your birthday. The rising sign changes about every two hours on average, so it needs your exact time and place. With no time, you still get everything the date can settle, and the tool tells you what it can't.
Questions
What if I don't know my birth time?
You still get your Sun sign, Venus and Mars, and usually your Moon sign. If one of them changed signs on your birthday, you'll see both signs and a request for a time. The rising sign has to wait for one.
Is my birth information saved or sent anywhere?
No. Everything is worked out in your browser, nothing is sent to us, and your details never appear in the page address. They stay in this browser tab so you don't have to retype them on the next tool, and they're gone when you close it.
How accurate is it?
Positions come from Astronomy Engine, open-source astronomy software. We checked it against Swiss Ephemeris, a standard reference, on 400 random charts from 1930 to 2035. Every planet agreed to within about 20 arcseconds, the Moon even more closely, and the rising sign to within a couple of arcseconds.
Why is my rising sign different in another app?
The usual cause is a different birth time, birthplace or time zone. This tool uses your browser's historical time zone records, so daylight saving in your birth year is handled, and it asks which one if the clocks went back and your time happened twice.
Keep reading
Moon Signs
Moon Signs: What They Mean and How to Find Yours
Your Moon sign shapes what actually comforts you when you're tired or upset, and it can look nothing like your Sun sign. Here's what each sign needs.
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Sun Signs
Sun Signs: What Yours Says About Your Identity and Drive
Your Sun sign describes what you're reaching for: identity, drive, and how you grow. Here's what each of the twelve says, and when to double-check yours.
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Rising Signs
Rising Signs: What Yours Says About First Impressions
Your rising sign shapes first impressions and how you start things. Here's what each of the twelve says, why it needs a birth time, and your chart ruler.
⟶Planet positions from Astronomy Engine. Birthplaces from GeoNames (CC BY 4.0).