How many spiral galaxies are in the Local Group?
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 types of galaxies are in the Local Group?
The three largest members of the group are our Milky Way (second-biggest), the Andromeda galaxy (biggest) and the Triangulum Galaxy. The other galaxies in the Local Group are dwarf galaxies, and they’re mostly clustered around the three larger galaxies.
Are spiral galaxies found in groups?
They possess comparatively little gas and dust, contain older stars and are not actively forming stars anymore. Spiral galaxies appear as flat, blue-white disks of stars, gas and dust with yellowish bulges in their centers. These galaxies are divided into two groups: normal spirals and barred spirals.
What are the other large spiral galaxies that are found in the Local Group?
The two largest members, the Andromeda Galaxy and the Milky Way, are both spiral galaxies with masses of about 1012 solar masses each.
How many spiral galaxies are in the Local Group quizlet?
There are approximately 40 galaxies are in our Local Group.
How many galaxies are in the Local Group quizlet?
How many galaxies are in our local group? 40.
Where are spiral galaxies found?
Spiral galaxies are mostly found in low-density regions, and very rarely at the center of galaxy clusters. Most spiral galaxies contain a supermassive black hole in the center of the central bulge. Spiral galaxies tend to be the brightest galaxies in the universe.
What do spiral galaxies have in common?
Most spiral galaxies contain a central bulge surrounded by a flat, rotating disk of stars. The bulge in the center is made up of older, dimmer stars, and is thought to contain a supermassive black hole. Approximately two-thirds of spiral galaxies also contain a bar structure through their center, as does the Milky Way.
What is the most common type of galaxy found in our Local Group?
The spiral galaxy in which we live is one of the two largest members of the Local Group, roughly 75,000 light years across and containing several hundred billion stars.
What is the Local Group in 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 major galaxies are within our Local Group quizlet?
Our Milky Way is part of a local group of galaxies called the Virgo Super-cluster. Andromeda and the Milky Way are the biggest galaxies in this local group. The Milky Way has four main spiral arms named Perseus, Cygnus, Centaurus, and Sagittarius. Within each arm of the Milky Way there are smaller branches of arms.