Which constellation does the earth belong to _ which constellation system does the earth belong to?

Why are the Earth, the Sun and the Milky Way all in the Virgo galaxy? What about other constellations?

Let's talk about what a galaxy is and what a constellation is.

Galaxy is a huge celestial system composed of a large number of stars, nebulae and interstellar matter in the universe, and the Milky Way is just one of hundreds of billions of galaxies in hubble volume.

Constellation is a combination of a group of stars with similar positions projected on the celestial sphere. Constellations artificially divide the sky into regions with different shapes and areas from the perspective of the earth. All the stars, nebulae and galaxies in this region belong to this constellation.

The earth belongs to the solar system, and the solar system is just an ordinary planetary system in the Milky Way. The Milky Way is at least 654.38+ million light-years in diameter, including at least 200 billion stars like the sun.

Through the observation of the sky, galaxies are also distributed in groups in the universe. Some galaxies are relatively close to each other, forming a cluster of galaxies. The distance between galaxy clusters is relatively far. The Milky Way and nearby 500 large and small galaxies, such as Andromeda and Magellanic Cloud, together form the local galaxy group, in which the Milky Way and Andromeda are the two largest galaxies in the local galaxy group. All the galaxies in this cluster cover an area with a diameter of about 65.438+0 billion light years.

This cluster of galaxies belongs to a larger area of virgo supercluster. Virgo supercluster (also known as local cluster) is a supercluster composed of a group of clusters including local cluster. Shaped like a pancake in a pot, it covers an area of about 200 million light years. Virgo supercluster contains about 100 galaxy cluster, and the Virgo galaxy cluster (another galaxy cluster different from this one) is located at its center. This galaxy cluster is located at the edge of the Virgo galaxy cluster and continues to be far away from the Virgo galaxy cluster. In other words, the local group where our galaxy is located is only a peripheral member of this group.

This supercluster is called "virgo supercluster", because from the earth, most supercluster where the Milky Way is located is in the direction of Virgo, and the Virgo cluster, which is the center of virgo supercluster, is also in this constellation. Virgo is the largest constellation in the zodiac, with an area of 1294.43 square degrees. It is the second largest constellation among 88 constellations in the whole day, accounting for 3.3 18% of the whole day.

The Milky Way is not in the Virgo galaxy. Virgo has many galaxies, including M49 (ellipse), M58 (spiral), M59 (ellipse), M60 (ellipse), M6 1 (spiral), M84 (ellipse), M86 (ellipse), M87 (ellipse, famous radio source) and M90 (spiral).

In other constellations, there are also many galaxies, galaxy clusters and galaxy clusters.

So. Earth → Solar System → Milky Way → Local Cluster → virgo supercluster (including Local Cluster and Virgo Cluster).