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They classify Galaxy's by their shape, size, composition & color.
Galaxies are large systems of stars and interstellar matter, typically containing several million to some trillion stars, of masses between several million and several trillion times that of our Sun, of an extension of a few thousands to several 100,000s light years, typically separated by millions of light years distance.
They come in a variety of flavors: Spiral, lenticular, elliptical, and irregular. Besides simple stars, they typically contain various types of star clusters and nebulae.
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What else can I help you with?
Who classifies stars?
Astronomers classify stars.
What do astronomers use HR diagrams for?
To compare and classify stars.
What are the four variables astromeners use to classify stars?
The four variables astronomers use to classify stars are temperature, luminosity, size or radius, and mass. By analyzing these properties, astronomers can determine a star's position on the Hertzsprung-Russell diagram and classify it into different spectral types and stages of stellar evolution.
Will astronomers classify all the shapes of the 100 billion galaxies in the universe?
There's an impossible way to classify all the shapes of 100 billion galaxies in the universe.
Will astronomers classify all the shapes of 100 billion galaxies in the observable universe?
Someday astronomers may have classified all the shapes of 100 billion galaxies in the observable universe.
What do astronomers plan to fined out by classify stars?
astronomers plan to find the color, size ,temperatures, brightness, and also composition and radiation by stone a student at Robert Mitchell school 6th grade
What are the 4 variables astronomers use to classify stars?
Astronomers use temperature, luminosity, size, and color to classify stars. These factors help categorize stars into different spectral types and determine their position on the Hertzsprung-Russell diagram.
Do galaxys have planets in them?
yes
What is the final explosion of a dying supergiant star called?
A supernova, or in the case of a smaller star, a nova.
How many galaxys are there in your local group?
About 30.
90 of our galaxys mass is located?
At its centre.
What waves are produced by star and galaxys?
Ultraviolet
