1977, what is the constellation on the ninth day of the first lunar month?

Constellations are divided by month, which is a western culture, so they are generally said according to the solar calendar.

January Capricorn, February Aquarius,

Pisces in March, Aries in April,

May Taurus, June Gemini,

Cancer is in July and Leo is in August.

Virgo in September, Libra in October,

November Scorpio, December Sagittarius.