Declination and right ascension - I'm stuck on this multiple choice question:
Which of the following could be the equitorial co-ordinates of a star that rises to the south of east when viewed from 48 degrees north latitude, and 88 ...
calculating sidereal time - at what will the crab nebula cross the celestial median on March 12 and 13 2005. The right ascension is 05 31 30 and declination is 21 59 00.
Cygnus X-1 - After many differnt typs of astronomical measurements, it is now that believed that X-1 is a black hole
a. Find the location of this black hole relative to earth
b. Caculate Schwarzchild radiu ...