N Nobelette Guest May 24, 2009 #1 Assuming Hubble's law with Ho = 70 km/s/Mpc, what would be the angular diameter of an E0 galaxy of actual diameter 72 kpc if its 656.3-nm H-alpha line is observed at 690nm ?
Assuming Hubble's law with Ho = 70 km/s/Mpc, what would be the angular diameter of an E0 galaxy of actual diameter 72 kpc if its 656.3-nm H-alpha line is observed at 690nm ?
