Where is the elliptical galaxy M87?

To know where M87 is, you must first be familiar with Virgo. Speaking of the straw hat galaxy, we have got some preliminary knowledge about Virgo. Virgo is the second largest constellation in the whole day, with a large area. Its sky area is11:35 ~15: 08 and declination is -22 ~+ 14. The center of Virgo passes through the sky on the night of April 1 1 every year, which is a favorable opportunity for us to observe Virgo every year. Virgo is surrounded by Libra, Ophiuchus, Ophiuchus, Raven, Grand Earl, Leo, Backseat and Capricorn. You can see a complete Virgo in a vast area between 68 north latitude and 76 south latitude. Virgo is a very important constellation, because the autumnal equinox is in Virgo, the autumnal equinox is the intersection of the ecliptic and the celestial equator, and the other intersection is the vernal equinox in Pisces. Because there are a large number of extragalactic galaxies in Virgo, forming a huge cluster of galaxies, it has attracted special attention from astronomers.

The position of M87 in Virgo is just opposite to the direction of the Straw Hat galaxy. Located in the north of Virgo, at the junction with the rear left. To find M87, we must first find Virgo, and then find Kakuqi, the first bright star of Virgo. Only then can you find that the three bright stars Virgo, arcturus and Leo β form a striking equilateral triangle, which is the so-called "spring triangle". Looking south from the Big Dipper, we can easily find this "Spring Triangle", so that we can find Virgo.

Some bright stars in the western half of Virgo form a capital letter "γ", and the stars from α to γ are divided into two branches, γ, δ and ε' are one branch, and γ, η and β are the other. Virgo galaxy cluster is located in the "γ"-shaped region. M87 is just to the north of this cluster, which is the densest area of galaxies and the central area of the cluster.

1 10 One of the messier objects has 40 extragalactic galaxies, and among these 40 extragalactic galaxies, 1 1 is in Virgo. In addition to M 104 and M87, there are -M49m58m59m60m665438+.