Will a star with a declination of +60° ever set for an observer at latitude 45°N?
λ = arctan(sin(α)cos(ε) - cos(α)sin(δ)sin(ε) / cos(δ)cos(α)) β = arcsin(sin(δ)cos(ε) + cos(δ)sin(α)sin(ε)) spherical astronomy problems and solutions
How far apart are two stars (Star A and Star B) in the sky? Will a star with a declination of +60°
(Altitude and Azimuth), which is relative to their local horizon. However, star catalogs use the Equatorial system star catalogs use the Equatorial system