Figure: 16th century woodcuts illustrating the zodiac

Caption: 16th century woodcuts illustrating the zodiac: either the zodiac signs or the zodiac constellations which are NOT the same thing. The woodcuts just show zodiac beings and not the stars they straddle.

Further Explication:

1. The zodiac signs are 30° segments of the ecliptic with zero point at the vernal equinox.

2. The zodiac signs were named for the constellations they approximately straddled circa the 7th century BCE (Wikipedia: Zodiac: Early History).

3. Because of the axial precession, the vernal equinox and therefore the zodiac signs slowly shift westward along the ecliptic. The zodiac signs are now ∼ 30° west of where they were on the ecliptic in the 7th century BCE.

   This means the Sun moving eastward on the ecliptic moves through a zodiac sign about 30 days before it moves through the corresponding zodiac constellation.

4. Your zodiac sign is the zodiac sign the Sun is in on your birthday.

5. See Wikipedia: Zodiac: Table of dates for the time periods that the Sun is in each zodiac sign and each zodiac constellations.

6. For reference for the zodiac, we present the 12 zodiac signs, zodiac constellations, zodiac symbols below:
   (1) Aries, Aries, ♈ (2) Taurus, Taurus, ♉ (3) Gemini, Gemini, ♊ (4) Cancer, Cancer, ♋ (5) Leo, Leo, ♌ (6) Virgo, Virgo, ♍ (7) Libra, Libra, ♎ (8) Scorpius, Scorpius ♏ (9) Sagittarius, Sagittarius, ♐ (10) Capricornus, Capricornus, ♑ (11) Aquarius, Aquarius, ♒ (12) Pisces, Pisces, ♓.

7. List of Keywords Relevant to this Figure Linked to Wikipedia Articles: axial precession, vernal equinox, zodiac constellations, zodiac signs, zodiac, etc.
   

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