- Which galaxy type has the oldest stars?
- Why does an elliptical galaxy look like a giant star?
- Which type of galaxy has the youngest stars?
- What are the 4 types of galaxies?
- What are three major types of galaxies?
- Why do elliptical galaxies appear red?
- What is the force that holds galaxies together?
- Do irregular galaxies have old stars?
- What galaxy do we live in?
- What is the Earth’s galaxy called?
- What’s bigger than a galaxy?
- What is the major difference between an elliptical galaxy and a spiral galaxy?
- How old are the stars in a elliptical galaxy?
- How big is the average irregular galaxy?
- Which galaxy is closest to our own?
- Is the Milky Way an irregular galaxy?
Which galaxy type has the oldest stars?
Curious enough, the smallest galaxies are also the elliptical types.
The oldest and farthest galaxy ever discovered is an irregular type of galaxy called GN-z11.
It is 32 billion light-years / 9.8 billion parsecs away from us.
It is estimated that the galaxy formed just around 400 million years after the Big Bang..
Why does an elliptical galaxy look like a giant star?
Answer and Explanation: An elliptical galaxy looks as if it is a giant star because it lacks the distinctive structure of a spiral galaxy, where the bulge is surrounded by a…
Which type of galaxy has the youngest stars?
CardsTerm What is the shape of the Milky Way Galaxy?Definition A huge, slowly revolving disk.Term Which galaxy type has the oldest stars?Definition EllipticalTerm Which galaxy types has the youngest stars?Definition IrregularTerm Which galaxy type are typically the largest galaxies in the universe?Definition Spiral56 more rows•May 13, 2009
What are the 4 types of galaxies?
In 1936, Hubble debuted a way to classify galaxies, grouping them into four main types: spiral galaxies, lenticular galaxies, elliptical galaxies, and irregular galaxies. More than two-thirds of all observed galaxies are spiral galaxies.
What are three major types of galaxies?
Astronomers classify galaxies into three major categories: elliptical, spiral and irregular. These galaxies span a wide range of sizes, from dwarf galaxies containing as few as 100 million stars to giant galaxies with more than a trillion stars.
Why do elliptical galaxies appear red?
Why do elliptical galaxies appear yellow or red in color? They have very little dust or cool gas, and thus have little ongoing star formation. Their population is dominated by old, cooler stars.
What is the force that holds galaxies together?
gravityMost galaxies are not alone in the vast expanse of space, but are connected to one or more other galaxies by gravity. The same force that holds you onto the Earth can keep many individual galaxies bound together.
Do irregular galaxies have old stars?
The bulge and halo consist mainly of older stars, where spiral arms have more gas, dust and younger stars. … The stars in ellipticals tend to be older. Irregular galaxies have no identifiable shape or structure to them. They are often chaotic in appearance, without a bulge or any trace of spiral arms.
What galaxy do we live in?
The Milky WayWe live in one of the arms of a large spiral galaxy called the Milky Way.
What is the Earth’s galaxy called?
the Milky Way GalaxyWe live on a planet called Earth that is part of our solar system. But where is our solar system? It’s a small part of the Milky Way Galaxy. A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems.
What’s bigger than a galaxy?
Galaxies come in many sizes. The Milky Way is big, but some galaxies, like our Andromeda Galaxy neighbor, are much larger. The universe is all of the galaxies – billions of them! … Our Milky Way Galaxy is one among the billions of galaxies in our Universe.
What is the major difference between an elliptical galaxy and a spiral galaxy?
While spiral galaxies are bright, elliptical galaxies are dim. Spiral galaxies are hotbeds of star formation, but elliptical galaxies aren’t nearly as prolific because they contain less gas and dust, which means fewer new (and brighter) stars are born.
How old are the stars in a elliptical galaxy?
around 13 billion yearsThe oldest stars in any galaxy all have about the same age of around 13 billion years. This means that spirals form as spirals, ellipticals form as ellipticals, and irregulars form as irregulars.
How big is the average irregular galaxy?
about 20,000 light yearsIrregular galaxies as a class have no particular shape, and have no spherical or circular symmetries as the ellipticals and spirals do. There is a range of sizes, but irregulars tend to be small. They average about 20,000 light years in diameter.
Which galaxy is closest to our own?
Canis Major Dwarf GalaxyThe closest known galaxy to us is the Canis Major Dwarf Galaxy, at 236,000,000,000,000,000 km (25,000 light years) from the Sun. The Sagittarius Dwarf Elliptical Galaxy is the next closest , at 662,000,000,000,000,000 km (70,000 light years) from the Sun.
Is the Milky Way an irregular galaxy?
Most galaxies can be categorized by their shape. Our own Milky Way is a spiral galaxy, for example, and the largest galaxies in the Universe are elliptical galaxies. But some galaxies defy categorization. These are the irregular galaxies, and each one is unique in shape, age and structure.