Models of Planetary Motion
The sun is in the middle of our solar system
What is the heliocentric model?
What did they use to measure time
A sundial
This tells us the luminosity, size, temperature, and colour of stars
What is the H-R diagram?
What are Mercury, Venus, Earth and Mars
The compass direction of an object
What is the azimuth?
The earth is in the middle of our solar system
What is the geocentric model?
The distance that light travels in a year
What is a light-year?
This is the first stage in a star's formation
What is a protostar?
The Jovian planets
This tells us how high something is in the sky
What is the altitude?
Our orbits are in this shape
What is elliptical?
This measures the angle between the moon and any stars
What is a cross-staff?
What is the process that happens in a star to give it energy?
What is nuclear fusion?
These are small, rocky or metallic bodies travelling in space - we aren't certain where they come from
What are asteroids?
What is a red giant comes from a sun-like star, but a red supergiant comes from a massive star?
Longest period of daylight in the year, and shortest period of daylight in the year
What is the summer solstice and winter solstice?
This charts astronomical positions and predicts the movement of stars
What is a merkhet?
What is its size?
What are comets?
This refers to highest point directly overhead
What is the zenith?
When day and night are of equal length
What is the equinox?
This is used in our local system, distance from centre of the earth to the centre of our sun
These are the three types of galaxies
What are irregular, elliptical, and spiral?
The differences between a meteoroid, meteor, and meteorite?
Meteroid - Small pieces of rock that fly with no particular path
Meteor - When a meteroid gets pulled into our atmosphere but does not crash into us
Meteorite - When a meteor lasts long enough to crash into our surface
How many black dwarf stars are there?