answersLogoWhite

0

By observing the rotation, and calculating the diameter. If you know the diameter of the galaxy, a certain rotation speed implies a certain mass (to be stable at that speed). It turns out there is 5-10 times more mass than the known masses. Read about "dark mass" for more details.

By observing the rotation, and calculating the diameter. If you know the diameter of the galaxy, a certain rotation speed implies a certain mass (to be stable at that speed). It turns out there is 5-10 times more mass than the known masses. Read about "dark mass" for more details.

By observing the rotation, and calculating the diameter. If you know the diameter of the galaxy, a certain rotation speed implies a certain mass (to be stable at that speed). It turns out there is 5-10 times more mass than the known masses. Read about "dark mass" for more details.

By observing the rotation, and calculating the diameter. If you know the diameter of the galaxy, a certain rotation speed implies a certain mass (to be stable at that speed). It turns out there is 5-10 times more mass than the known masses. Read about "dark mass" for more details.

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

90 of our galaxys mass is located?

At its centre.


How do we know the mass of the Earth?

The mass of the Earth is determined by measuring the gravitational pull it exerts on objects. Scientists use the laws of physics and observations of the Earth's orbit to calculate its mass.


Mass mass problems?

Mass-mass problems can be solved in various ways. You should start by writing a balanced equation for chemical reaction involved and eventually change the mass into moles which will facilitate the comparison and allow you to calculate the number of moles required.


What is a way to calculate the mass of an object when you multiply its density by what?

You can calculate the mass of an object by multiplying its density by its volume. The formula to calculate mass is: mass = density x volume.


How do you calculate a mass of am atom?

To calculate the atomic mass of an element, add up the mass of protons and nuetrons.


Is the volume of the unknown mass needed to calculate the mass of calcium oxide?

No. you will know the volume of the unknown mass after you calculate the mass of ca0


How do you calculate volume if only mass was given?

You would need to know the density of the object in order to calculate the volume from the mass. The formula to calculate volume from mass and density is: Volume = Mass / Density.


What is the qualitative and quantitive observations of an object if the sides measure 4cm and the mass is 5kg?

Qualitative observations would include the color, texture, and shape of the object, while quantitative observations would be the dimensions (4cm sides) and mass (5kg).


The mass of stars is measured using observations of?

their orbits in binary systems


How do you calculate the atomic mass of carbon?

The same way you calculate the atomic mass of other elements.


How do you calculate the mass of the atom?

Protons and neutrons= mass


What are some of the science observations?

some observations in science are: color hardness streak volume mass density ect..I hope this answered your question!