where e is the eccentricity, r_a is the aphelion distance, and r_p is the perihelion distance.
Using the spherical trigonometric formulas from the PZX triangle, we get the star's altitude and azimuth. The final result is an altitude ( h = 75^\circ29'30'' ) and an azimuth ( A = 44^\circ59'03'' ). spherical astronomy problems and solutions
sina=(0.6428⋅0.4226)+(0.7660⋅0.9063⋅0.7071)sine a equals open paren 0.6428 center dot 0.4226 close paren plus open paren 0.7660 center dot 0.9063 center dot 0.7071 close paren where e is the eccentricity, r_a is the