31. How is the equation for angular diameter derived ? talk to me 01 : 35, 2 January 2008 ( UTC) 32. It has been estimated to be ?distant from Earth ( by extrapolating from its angular diameter and estimated radius ). 33. This is a red giant star with a stellar classification of M3 III . The measured angular diameter of this star is. 34. Human eyes have a resolution limit of around 1 arc-minute, while the angular diameter of Venus is slightly larger. 35. For example, a measured angular diameter of 55.6 mas corresponds to a Rosseland mean diameter of 56.2 mas. 36. At its distance from the Sun, the Sun's angular diameter is reduced to a tiny disk about 2 arcminutes across. 37. The D ? relation, used in elliptical galaxies, relates the angular diameter ( D ) of the galaxy to its velocity dispersion. 38. The sun's angular diameter is about 1920 arcseconds and we are only talking about a change of about 20 arcseconds in altitude. 39. The angular diameter of Deimos is only 2?times the angular diameter of Venus as seen from Earth during a transit of Venus from Earth. 40. The angular diameter of Deimos is only 2?times the angular diameter of Venus as seen from Earth during a transit of Venus from Earth.
