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Ophiuchus: the 13th zodiac sign?

Ophiuchus, the Serpent-Bearer, is one of the 88 official constellations — and the Sun passes through it every year, between Scorpius and Sagittarius. Here are its real dates, calculated from the official constellation boundaries:

The real sky · 2026

The Sun is in Ophiuchus from November 30 to December 18 (19 days).

Calculated from the official constellation boundaries. The constellation is behind the Sun then, so you can’t see it; it is opposite the Sun — up all night and highest around midnight — around June, and in the early-evening sky a month or two later.

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Questions

Is Ophiuchus a zodiac sign?

Not in Western astrology, which uses 12 equal 30° signs fixed to the seasons. Astronomically, the Sun does pass through the constellation Ophiuchus every year.

Did NASA add a 13th sign?

No. NASA has pointed out that the constellations and signs were always different; nothing was changed.

Was the Sun in Ophiuchus on my birthday?

If your birthday falls in the dates above, yes — the Sun was in the constellation Ophiuchus. Check your exact date with our birthday constellation calculator.

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