Apparent Brightness of the Sun and Stars
What is the brightness of the sun?
The brightness of the sun is very high, it is the brightest object in our sky, because it is the closest.
What planet do we live on?
What is a galaxy?
A galaxy is a large groups of stars, gas, and dust held together by gravity.
What is a rotation?
Rotation is when an object spins around its own axis.
What causes shadows?
Shadows are formed when an object blocks light from a source.
How does distance affect brightness?
The farther an object is, the dimmer it appears to us.
Which planet is closest to the sun?
Mercury.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
My Very Educatated Mother Just Served Us Nachos
Name three types of galaxies?
Spiral Galaxy
Elliptical Galaxy
Irregular Galaxy
What is a revolution?
How does the sun affect day length?
The position of the sun in the sky changes throughout the year, affecting how long the sun is visible each day.
Why do stars look different in brightness?
Stars can be different distances away from Earth and have different sizes and temperatures.
Which is the milky way?
How many galaxies are there out in space?
There are billions of galaxies in the universe.
How long does Earth take to rotate once?
Earth takes about 24 hours or 1 day to complete one rotation.
What happens to shadows throughout the day?
Shadows change in length and direction as the sun moves across the sky.
What is a light year?
A light year is the distance that light travels in one year.
What is the solar system?
The solar system is made up of the sun and all the objects that orbit around it, including planets.
What is an elliptical galaxy?
An elliptical galaxy is a type of galaxy that has an oval shape and lacks the distinct arms of the spiral galaxy.
Earth takes about 365.25 days or 1 year to complete one revolution around the sun.
How can you tell the time using a shadow?
A sundial uses the changing position of a shadow cast by a slanted piece of material to tell time, similar to how a clock's hands move.
What is the role of the sun in the solar system?
The sun provides light and heat and it is the central star around which all planets revolve.
What arm on the Milky Way galaxy is our solar system located on?
Orion Spur or Orion Cygnus
What is a spiral galaxy?
A spiral galaxy has a flat, rotating disk containing of stars, gas, and dust, with spiral arms extending outwards.
What does Rotation Cause?
What does Revolution Cause?
Day and Night
Seasons
The sun rises in the _____ and sets in the ______.
The sun rises in the East and sets in the West.