What is a Local Group in astronomy?
What is a Local Group in astronomy?
Local Group, in astronomy, the group of more than 20 galaxies to which the Milky Way Galaxy belongs. About half are elliptical galaxies, with the remainder being of the spiral or irregular type.
What is the Local Group Astronomy quizlet?
What is the Local Group? The Local Group is the galaxy group that includes the Milky Way. The Local Group comprises more than 54 galaxies, most of them dwarf galaxies. Its gravitational center is located somewhere between the Milky Way and the Andromeda Galaxy.
What is the local group of galaxies called?
The Local Group (also called M31 group or the Andromeda group) is the group of galaxies that includes our galaxy, the Milky Way.
What is the Local Group orbiting?
The Milky Way in its turn revolves around the gravity center of the Local Group which includes Andromeda and the Magellan Clouds. The Local Group in turn orbits some point within the Virgo Supercluster.
Where is the Local Group in the universe?
It’s somewhere between the Milky Way and the Andromeda Galaxy. Astronomers have also discovered that our Local Group is on the outskirts of a giant supercluster of galaxies, known as the Virgo Supercluster.
How many local groups are there in the universe?
There are over 30 galaxies that are considered to be in the local group, and they are spread over a diameter of nearly 10 million light years, with the center of them being somewhere between the Milky Way and M31. M31 and the Milky Way are the most massive members of the Local Group, with M33 being the 3rd largest.
What does the term Local Group suggest?
Local-group definition (proper) The cluster of neighboring galaxies that includes Andromeda, the Magellanic Clouds, and the Milky Way. noun. (astronomy) The small cluster of galaxies that contains the Milky Way Galaxy; includes Andromeda, Triangulum, the Large Magellanic Cloud, Small Magellanic Cloud and others.
How many galaxies are in the Local Group?
What is the Local Group apart of?
The Andromeda Galaxy is part of the Local Group, which includes the Milky Way. The local group is the Milky Way’s neighborhood in the Universe. The Local Group’s center of gravity is located somewhere between the Milky Way Galaxy and Andromeda Galaxy, which are about two million light years from each other.
What is Earth’s Local Group?
The Local Group is the galaxy group that includes the Milky Way. It has a total diameter of roughly 3 megaparsecs (10 million light-years; 9×1022 metres), and a total mass of the order of 2×1012 solar masses (4×1042 kg).
Where is the Local Group located?
It’s somewhere between the Milky Way and the Andromeda Galaxy. Astronomers have also discovered that our Local Group is on the outskirts of a giant supercluster of galaxies, known as the Virgo Supercluster. EarthSky 2022 lunar calendars now available!
Is a Local Group bigger than a galaxy?
What’s bigger than the Local Group? The Local Group is a collection of galaxies. It spans some 10 million light-years of space.