T tashaS1 New member Aug 31, 2010 #1 which are visible to the unaided eye? Which pair of stars has an intensity ratio of 16?
M MichaelM Member Aug 31, 2010 #2 A is brightest. A and B should(tm) be visible to the naked eye on a dark night with clear weather out in the country (up to magnitude 6 should be visible in those conditions). B and C have an intensity ratio of 16 (magnitude difference squared).'
A is brightest. A and B should(tm) be visible to the naked eye on a dark night with clear weather out in the country (up to magnitude 6 should be visible in those conditions). B and C have an intensity ratio of 16 (magnitude difference squared).'