How to calculate the Sun Constellation, Moon Constellation and Mercury Constellation? Please answer my Gregorian calendar1991.04.1700.

The sun constellation is simply calculated according to the date of birth in the Gregorian calendar. On April 17, you belong to Aries (also called Aries) and guard the planet Mars. Aries 3.22-4.20

The moon constellation is based on the date and time of the lunar calendar, and the moon constellation is the same for dozens of hours in a month. Your moon sign is Taurus.

Mercury in time, your mercury is Aries.

Attach your other constellations:

Sun: Aries 26 08' fourth house

Moon: Taurus 20 27' fifth house.

Mercury: Aries 23 06' fourth house

Venus: Gemini 04 16' sixth house.

Mars: Cancer 07 20' seventh house.

Jupiter: Leo 04 0 1' eighth house.

Saturn: Aquarius 05 59' second house

Uranus: Capricorn 13 50' house 1.

Neptune: Capricorn 16 47' Palace 1.

Pluto: Scorpio 19 27' 1 1.

Ascension: Sagittarius 25 53'

Zenith: Libra 1 1 37'