Sign In
Ask Question
Megan Duffy
Physics
14 April, 10:24
How is the size of stars measured?
+2
Answers (
1
)
Lily Murillo
14 April, 10:45
0
To measure the size of a star, it's simply a matter of angular resolution (the smallest detail that can be seen). The angular resolution of a telescope is given by the following equation:
θ≈1.22λ/DD
Where λλ is the wavelength of light you are observing with, and DD is the diameter of your telescope.
However, if you combine the light from two telescopes that are far apart (which is not at all easy to do!), then DD is the distance between the two mirrors. This is called interferometry, and is a widely used technique in astronomy.
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Find an answer to your question 👍
“How is the size of stars measured? ...”
in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
What is the most important reason to control the condition of a experiment
Answers (1)
Tina is waiting at the bus stop. She sees and hears an ambulance as it approaches and passes by her. Which two changes in the loudness of the siren does Tina hear?
Answers (1)
What part of an electrical circuit is intended to limit the maximum current through the circuit?
Answers (1)
A transformer has a primary coil with 300 turns and a secondary coil with 600 turns. If the output voltage is 75 volts, what is the input voltage?
Answers (1)
Name the process scientists use to gain knowledge about the physical world
Answers (2)
New Questions in Physics
What is the most advanced life form on earth
Answers (2)
Which EM wave is about the size of humans?
Answers (1)
Describe how the Catapult works?
Answers (2)
Newton's third law of motion states that the force pair acting on different objects consist of two forces that
Answers (1)
While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.
Answers (2)
Home
»
Physics
» How is the size of stars measured?
Sign In
Ask Question
Menu
Calculator
Subjects
History
English
Mathematics
Biology
Physics
Chemistry
Geography
Social Studies
Business
Law
Arts
SAT
Advanced Placement (AP)
Computers & Technology
Engineering
Sign In
close
Sign In
Sign Up
Forgot Password?