Structures of stars, gas, and dust held together by gravity
What are galaxies
100
Most stars are made up of these two elements, list atomic number and symbol.
What is Hydrogen 1 H & Helium 2 He
100
Name 5 types of astronomical bodies
What are comets, asteroids, planets, meteors, moons, stars, dwarf planets, black holes
100
The sun is a ____ ________ star.
What is main sequence.
100
This Italian scientist is credited for inventing the modern day telescope and discovering sun spots.
Who is Galileo Galilei
200
Scientist have determined the universe to be
What is expanding
200
Stars are classified by these two physical properties
What is temperature and size
200
These are the three main parts of a comet
What is the tail, the nucleus, the coma.
200
During the process of nuclear fusion 4 of these atoms fuse to yield one of these atoms.
What conditions are required for this reaction to occur?
What is Hydrogen -> Helium
Extreme temperatures and immense pressure
200
This English physicist / mathematician discovered the principles of gravitational force.
Who is Sir Isaac Newton
300
This quantity is an estimated value of the visible galaxies in the universe
What is 100 billion or 100,000,000,000
300
All stars start as
What is nebula(s)
300
The astronomical bodies range between Neptune and the Dwarf planet Pluto.
What is the Kuiper Asteroid Belt.
300
Name the first 6 layers of The Sun from inner to outer
What is the core, the radiative zone, the convective zone, the photosphere, the chromosphere, the corona.
300
He came up with this formula E = mc2 , what does the formula mean
Who is Albert Einstein
E = energy, m = mass and c = the speed of light
400
These are the three main types of galaxies
What is spiral, irregular, and elliptical
400
Luminosity is how bright a star is. What are the other means of measuring stars and differences between the two?
What is apparent magnitude and absolute magnitude.
Apparent magnitude is the brightness of a star from Earth, whereas, Absolute magnitude is the magnitude of a star if were placed 10 parsecs from Earth.
400
Some meteors are made up of these two metal elements? Write chemical symbol as well
What is Iron (Fe) & Nickel (Ni)
400
These parts of The Sun have an increased magnetic field.
What are sun spots.
400
This Belgian priest / scientist is responsible for the galaxy expanding law.
Who is George Lemaitre.
500
Light travels through space at about this many km/sec
What is 300,000 km/s
500
Giant red stars end as a
supernova
500
Astrophysicists postulate that the universe began as a
What is a singularity.
500
The approximate difference between umbra of a sun spot and the photosphere is in Celsius
What is ~ 4,000 degrees Celsius.
500
She is responsible for the classification of stars. She worked at the Harvard Observatory and was hearing impaired.