What is the constellation on April 20th?

April 20th is Aries. Aries, the first house of the zodiac, is located in the east of Pisces and the west of Taurus, and the date is from March 2 1 day to April 20.

Aries is a very dark constellation, its three main stars form an obtuse triangle structure, which is very easy to identify without light pollution, but its other stars are very dim and difficult to distinguish. These three stars are arranged in the shape of an old pistol. From late autumn to spring, it always flashes in the sky.

Aries data extension

The most famous celestial bodies in Aries are the three main stars α, β and γ. Connecting Orion γ and Epicurus, extending about twice the distance to the northwest, there is a famous open cluster, the Pleiades. When the weather is clear, you can see seven bright stars in this cluster, so China was also called the Seven-Star Cluster in ancient times.

The Pleiades cluster is 450 light-years away from the Earth with a radius of 13 light-years. Observed with a large telescope, it can be found that there are more than 280 stars in the Pleiades cluster. Another open cluster is called Biju Cluster, which is a mobile cluster located near Biju, but Biju is not a member. Bi cluster is 0/43 light-years away from Earth/kloc-and has about 300 members.