Enter the parallax angle (arc-seconds) into the Star Distance Calculator. The calculator will evaluate and display the Star Distance.
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Star Distance Formula
The following formula is used to calculate the Star Distance.
Dstar = 1 / P
- Where Dstar is the Star Distance (parsecs)
- P is the parallax angle (arc-seconds)
To calculate the star distance, divide 1 by the parallax angle.
How to Calculate Star Distance?
The following example problems outline how to calculate Star Distance.
Example Problem #1:
- First, determine the parallax angle (arc-seconds).
- The parallax angle (arc-seconds) is given as: 15.6.
- Finally, calculate the Star Distance using the equation above:
Dstar = 1 / P
The values given above are inserted into the equation below and the solution is calculated:
Dstar = 1 / 15.6 = .064 (parsecs)
Example Problem #2:
For this problem, the variables needed are provided below:
parallax angle (arc-seconds) = 80
${V2} = ${number 4}
This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer.
Dstar = 1 / P = ?
