A Cassegrain telescope has a 500mm diameter , a focal length of 5000mm and a central obstruction of 80mm diameter.
1) the magnification with a 25mm eye piece
2) the light gathering power compared to aye of 5mm in diameter
3) the angular field in the sky if the...
Thanks a lot for you reply.
Yes thhe question also asked us to compare the the mass of dark
matter within the Solar System with the mass of normal matter?
If iVe applied everything correctly then the answer I got for
gave us a mass of =3.8*10^19 Kg...
We have been asked to calculate the density of dark matter in the solar system. I've used the following equation:
The Attempt at a Solution
V = 2.2*10^5 speed of solar system orbit around the galaxy
G = 6.67*10^-11...