You don’t believe in astrology. You don’t read your horoscope. But I bet you know your star sign.
Whatever star sign you think you were born under, you probably were not.
In fact, such is the inaccuracies in the modern era of traditional star signs that it’s most likely that you’re the star sign before the one you think you are.
So how do you know your real star sign? It’s actually very easy—you just need to know what constellation the Sun is in on your birthday.
You can do that using a free online planetarium such as Stellarium; enter the date of your birthday—this year is fine—and then click the Sun and it will tell you exactly which constellation it’s in on that date.
All star signs are signs of the zodiac—constellations on the ecliptic, a line in the sky that the Sun appears to follow.
And, yes, that’s not 12 constellations but 13, but please don’t blame NASA for that.
Of course, the Sun isn’t in anything. It’s many light-years in front of the background stars. Which reveals horoscopes to be based on nothing more than line-of-sight observations.
How could line-of-sight possibly have any consequence on people’s lives or emotions? They couldn’t. They don’t! Just as Mercury in retrograde is meaningless nonsense. But that doesn’t stop people enjoying reading their horoscope.
If that’s you then you’ll want to know which horoscope you should be reading. So here’s a list of the star signs—the signs of the zodiac—with their traditional dates and the actual dates that the Sun is within their boundaries each year.
The real star sign dates
Traditional: December 22-January 19
Actual: January 20–Feb 16
Traditional: January 20-February 18
Actual: Feb 16–March 11
Traditional: February 19–March 20
Actual: March 11–April 18
Traditional: March 21–April 19
Actual: April 18–May 13
Traditional: April 20–May 20
Actual: May 13–June 21
Traditional: May 21–June 20
Actual: June 21–July 20
Traditional: June 21–July 22
Actual: July 20–August 10
Traditional: July 23–August 22
Actual: August 10–September 16
Traditional: August 23–September 22
Actual: September 16–October 30
Traditional: September 23–October 22
Actual: October 30–November 23
Traditional: October 23–November 21
Actual: November 23–November 29
Traditional: doesn’t exist!
Actual: November 29–December 17
Traditional: November 22–December 21
Actual: December 17–January 20
Did you spot the “new” one? The 13th sign of the zodiac is Ophiuchus (pronoucned or-phew-cuss), a summer constellation well known to stargazers but ignored by traditional astrology. It’s real! The Sun enters the constellation of Ophiuchus on November 29 and departs on December 18 … a period of the year traditionally thought of as Sagittarius.
So while many of us are the star sign before the one we think we are, many Sagitarians are actually Ophiucuns.
Look more carefully at the list of real star sign dates and you’ll see that the Sun spends a vastly different time within the boundaries of each zodiacal constellation. For example, it’s in and out of Scorpio in just a week while it spends a whopping 45 days in Virgo.
So what’s happened? Why are the traditional star signs all out of whack?
It’s partly because the star signs were rounded down to…