Shine Bright
H-R Diagram
The Sun
Random
100
What two ways do scientists differentiate the brightness of a star?
Apparent Magnitude and Absolute Brightness
100
What is the coolest color of stars?
Red
100
What color is the Sun?
Yellow
100
What color would an medium-temperature, but dim star would be?
Yellow; remember color relates to temperature
200
Looking up at the night sky I can see many stars. If star A is brighter than star B when I look up, what am I comparing?
Apparent Magnitude
200
If I plot a red supergiant star on an H-R diagram would the temperature be toward the low or high end?
Low; red is the coolest star
200
What is the outermost layer of the Sun?
The Corona
200
Mario observes stars through his telescope. He states that the star Regulus is brighter than the star Rigel. In reality, Rigel has a greater absolute brightness than Regulus. What can explain Mario’s observation?
A. Regulus is a hotter star than Rigel.
B. Rigel is a hotter star than Regulus.
C. Rigel is much closer to Earth than Regulus.
D. Regulus is much closer to Earth than Rigel.
D. Regulus is much closer to Earth than Rigel.
300
What star would have the most negative number associated with its Apparent Magnitude?
The Sun (Negative means it is brighter)
300
What measure of brightness does the H-R Diagram display?
Absolute Brightness
300
What layer of the Sun produces all the energy for the star?
The Core
300
What does the term "Property" mean when talking about the properties of stars?
A characteristic/ attribute/ quality
400
Star A is 1,000 Light Years from Earth while Star B is 5,000 Light Years from Earth. They both appear the same brightness from Earth.
Which star has a higher Absolute Brightness?
Star B
400
List the color of stars from Hottest to Coldest.
Blue, White, Yellow, Orange, Red
400
Draw an image to represent the Sun's Rotation
400
Which of the following best explains a solar flare?
A. a cooler location on the surface of the Sun
B. a ring of light that surrounds the surface of the Sun
C. a bright burst of radiation from the surface of the Sun
D. a loop of plasma connecting two spots on the surface of the Sun
C. a bright burst of radiation from the surface of the Sun
500
Explain what is happening in this photo using the terms Absolute Brightness and Apparent Magnitude.
The Absolute Brightness of the Flashlight remains the same. As the person moves toward the tent, the Apparent Magnitude increases.
500
What do we call the continuous band of stars that are plotted along the middle of the H-R Diagram?
Main Sequence Stars
500
Where do Sunspots, Solar Flares, and Prominences happen on the Sun?
The Photosphere
500
What solar property is represented by number 9?
Prominence