Table of Contents
What is made up of group of stars?
A constellation is a group of stars that appears to form a pattern or picture like Orion the Great Hunter, Leo the Lion, or Taurus the Bull. Constellations are easily recognizable patterns that help people orient themselves using the night sky. There are 88 “official” constellations.
What is a large collection of stars?
A galaxy is a large collection of stars, dust and gas, and a substance called dark matter, all held together by gravity.
What do you call a bunch of stars?
The patterns of stars seen in the sky are usually called constellations, although more acurately, a group of stars that forms a pattern in the sky is called an asterism. Astronomers use the term constellation to refer to an area of the sky.
What is the star life cycle in order?
Stars come in a variety of masses and the mass determines how radiantly the star will shine and how it dies. Massive stars transform into supernovae, neutron stars and black holes while average stars like the sun, end life as a white dwarf surrounded by a disappearing planetary nebula.
What kind of gas are stars made of?
What are stars made of? Basically, stars are big exploding balls of gas, mostly hydrogen and helium. Our nearest star, the Sun, is so hot that the huge amount of hydrogen is undergoing a constant star-wide nuclear reaction, like in a hydrogen bomb.
Which is the best description of a star cluster?
Group of stars. Messier 92, a globular cluster in the Hercules constellation. Star clusters are large groups of stars. Two main types of star clusters can be distinguished: globular clusters are tight groups of hundreds to millions of old stars which are gravitationally bound, while open clusters are more loosely clustered groups of stars,
How are stars formed and why are they called Stars?
An astronomer explains how they form, why they appear to twinkle, how they got their name, and much more. The following questions were answered by astronomer Dr. Cathy Imhoff of the Space Telescope Science Institute. How does a star form? There are several steps in the formation of a star:
How are the different types of stars classified?
Types of Stars. Astronomers sort stars into categories according to their spectral characteristics – that is the information contained in the light they radiate. The general categories are O, B, A, F, G, K, M, R, N, T, Y, and group stars (and stellar objects) by their temperatures, luminosities, and colors.