B How do scientists measure mass, radius, and distance in astronomy?

[A Alex P]

We know mass, radius, distance of Sun and other stars. We also know size, number of stars in our galaxy or others. But, how do scientists measure these parameters ?

 

[BvU]

Intermediate level means undergrad -- or did you pick this by accident ?
Can you google "astronomic distance measurement" ?
Any further questions after you've read some of that are welcome, of course.

 

[A Alex P]

Intermediate level means undergrad -- or did you pick this by accident ?
Can you google "astronomic distance measurement" ?
Any further questions after you've read some of that are welcome, of course.

It was a mistake. Thanks for noticing : ) : )
I know these methods. But how we can say that sun is at that much distace or its mass.

 

[BvU]

It's PF culture to encourage posters to do some research of their own

 

[A Alex P]

It's PF culture to encourage posters to do some research of their own

It's good. But what's answer... : ) : )

 

[BvU]

Last time I looked the question wasn't there yet...
What did you find ? Google is your friend. Whole story (and at the right level )