Galaxy Shapes
Astro Vocab
Nebulous
Waves
Stellar
100
this type contains the oldest stars
What is an elliptical galaxy
100
transmission of energy in waves
What is radiation
100
this movement is indicated by a blue shifted spectral pattern
What is movement of a galaxy or star towards the observer
100
What does ROY G BIV stand for
What is red orange yellow green blue indigo violet-the visible spectrum
100
a galaxy contain this number of stars
What is billions
200
From above it looks like a pinwheel with many long arms
What is a spiral galaxy
200
people who study objects in space
What is an astronomer
200
this name comes from the Greek word for milk
What is galaxie
200
lowest frequency waves on the electro magnetic spectrum with long wavelengths
What are radio waves
200
this force holds together millions of stars in globular clusters
What is gravity
300
no distinguishable shape
What is an irregular galaxy
300
the pattern of colours produced when white light is split into bands of rainbow colours as it passes through a prism
What is a spectrum
300
Belgian priest and physicist who proposed the big bang theory
Who is Lemaitre
300
bats use these types of waves
What are infra red
300
what we call a loose group of up to a thousand stars
What is an open cluster
400
The Milky way is an example of this shape of galaxy
What is a spiral galaxy
400
a term for all objects in the sky including the Sun, Moon, planets and stars
What are celestial bodies
400
instrument used to detect cosmic back ground radiation
What is a radio telescope
400
what a spectroscope measures
What are the wavelengths of a light source
400
When is it believed that the universe began
What is 13.7 billion years ago
500
These are the most prevalent and the largest of galaxies and they contain some of the oldest stars in the universe.
What are elliptical galaxies
500
A cloud of gas and dust
What is a nebula
500
He noticed that all the galaxies were moving away from each other
Who is Hubble
500
very high energy waves with short wavelengths
What are gamma rays
500
This is the nearest star to earth
What is the Sun
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