True Zodiac

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Sign 4 of 12 in the horoscope

Are you really a Cancer?

By the horoscope, yes, and your sign stays yours. The stars behind it have quietly moved along, though: Cancer runs from 21 June to 22 July 2026, and on those dates the Sun passes through Taurus, Gemini and Cancer. This is the sky behind your sign.

An engraved plate of Gemini, the Twins, in the style of an old star atlas, with its real stars traced over the figure
Gemini, where the Sun spends 29 of Cancer’s 32 days, engraved in the old atlas style with its real stars traced over the figure.

Cancer against the sky, 2026

The horoscope says
21 June to 22 July · 32 days
The Sun is really in
  • Taurus 21 June · 1 day
  • Gemini 22 June to 20 July · 29 days
  • Cancer 21 July to 22 July · 2 days

The Sun reaches the constellation Cancer on 21 July, in time for the sign’s last 2 days.

Find the sky on your birthday

Why the sky behind Cancer has moved

Cancer’s dates were set more than two thousand years ago, pinned to the March equinox, when the signs took their names from the constellations the Sun was crossing. Since then Earth’s slow wobble, called precession, has carried the equinox about a twelfth of the way round the sky, roughly one day’s worth every seventy years. Your sign has kept its dates, and the stars behind them have simply moved along: that is why the Sun now spends Cancer’s days in Taurus, Gemini and Cancer.

These dates are computed for 2026 from the constellation boundaries the International Astronomical Union fixed in 1930. A boundary can fall a day earlier or later in another year, so for the particular day, and hour, you were born the calculator will check it for you.