Bright stars can look dim in our night sky due to this.
What is distance from Earth?
This process takes roughly 28 days to complete.
What is the moon orbiting Earth?
The time it takes to orbit the Sun?
What is revolution or planetary year?
This is the distance, in astronomical units, the Earth is from the Sun.
The Milky Way's galaxy type.
What is Spiral?
The distance stars move around us.
What is little to none?
Our view of the Moon is why we see these changes each night.
What are the phases of the Moon?
The reason gravity is not the same on all planets.
What is differences in planetary mass? OR Gravity is dependent on the size of the planet. (larger=more gravity)
This path of the Sun is during Winter:
What is #3?
A tool that tells time by using the changing direction of shadows caused by the Sun's movement across the sky
What is a sundial?
The reason some stars are different colors.
What is their temperature?
This happens when the Moon moves between the Earth and the Sun, obscuring our view of the Sun.
What is a solar eclipse?
The main factor Mercury is not a viable planet to explore with a rover.
What is the length of its nights?(2,112hrs)
The Sun, as any star, provides these two things to its planets.
What are heat and light?
This term describes the brightness of a star, or any object.
What is luminosity?
The reason(s) some stars are only seen during certain seasons.
What is our view of the night sky changes?
What is that we orbit the Sun and can only view stars at night, away from the Sun?
This occurs when the Moon moves in the Earth's shadow.
What is a lunar eclipse?
The reason temperature is an important factor in the habitability of a planet.
What is the need for liquid water?
This is why the shadows are longer in the Winter time.
What is the low path of the Sun?
Fragments of comets and asteroids that travel through space.
What are meteoroids?
The reason some stars are seen all year long.
What is because their location is North or South of the horizon, depending on your location on the Earth?
Draw: Position of the Sun, Earth and Moon for this phase to occur:
It must orbit a star, have enough gravity to be spherical in shape, and cleared its orbital path of other objects.
What is the criteria to be a planet?
The state of matter the Sun is categorized as.
What is plasma?
The distance around the center of a celestial body.
What is its circumference?