NASA - How Far? How Faint?
The surface temperature of a sun is about 58 K and its radius is 7*10^5 km. What is the luminosity of the sun? - Quora
Formulas - Inverse Square Law
Luminosity of a Star: Measurement & Formula | What is Luminosity? - Video & Lesson Transcript | Study.com
Luminosity Calculator
Lecture 7: Brightnesses of Stars
Solved Now use the Distance Modulus Calculator below to | Chegg.com
EQUATIONS HELP
Imagine the Universe!
Ned Wright's Cosmology Tutorial - All in 1
Lecture 22: The Cosmic Distance Problem
Distance measure - Wikipedia
Luminosity Calculator - Calculator Academy
Cepheid Variable Stars & Distance
Formulas - Luminosity
Cepheid Variable Stars
For a source with a luminosity L, and measured flux | Chegg.com
Properties of Stars
How To - How To Determine a Star's Radius | Space.com Forums
Distances in Cosmology
