Imagine the Universe!
Imagine Home | You Be the Astrophysicist! |

Using the relationship between density, mass and volume to solve for the Star's mass

Density is the amount of matter in a given volume. Density is a characteristic property of matter. This means that density can be used to identify a sample of matter and the size of your sample will not change your result. Density is determined by dividing the mass of a substance by the volume occupied by that mass.

density = mass/volume

If you know the volume and density of an object, a simple rearrangement of the above equation wil let you calculate it's mass.

mass = (density)(volume)

Data Click here to start by finding the volume of Cyg X-1.
Experiment Click here to return to the beginning and try a different experiment

If words seem to be missing from the articles, please read this.

Imagine the Universe! is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

The Imagine Team
Project Leader: Dr. Barbara Mattson
Curator: Meredith Gibb
Responsible NASA Official: Phil Newman
All material on this site has been created and updated between 1997-2014.
This page last updated: Monday, 30-Jan-2006 12:11:59 EST