The angle between the axis of earth and the vertical at the station of observation is called A. Astronomical latitude B. Astronomical co-latitude C. Co-declination of star D. Declination of star

The correct answer is: A. Astronomical latitude

Astronomical latitude is the angle between the vertical at the station of observation and the equatorial plane. It is measured in degrees north or south of the equator.

Astronomical co-latitude is the angle between the vertical at the station of observation and the polar axis. It is equal to 90 degrees minus the astronomical latitude.

Co-declination of a star is the angle between the star’s declination and the celestial equator. It is measured in degrees north or south of the equator.

Declination of a star is the angle between the star’s position and the celestial equator. It is measured in degrees north or south of the

64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube