Determine the declination of a star if its right ascension is 176o15 / and at 11h45m sidereal time the height of this star in Astrakhan was 58o39 /. Find from the table which star it was?
Right ascension a = 176о15 / = 11h45m, therefore, the star was in the upper culmination, therefore b = f – z = 46o21 / – 90o + 58o39 / = + 15o.
From the table we find a star with a = 11h45m and b = + 15o0 /; it will be Leo (Denebola).
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.