Question

In the demonstration, 360∘ of rotation (one full rotation) represents a sidereal day. You can actually measure the length of the sidereal day by measuring the time from when __________ crosses your meridian on one day (or night) until it crosses the meridian on the next day (or night). Mastering astronomy

Answer 1

In the demonstration, 360∘ of rotation (one full rotation) represents a sidereal day. You can actually measure the length of the sidereal day by measuring the time from when the star vega or the star sirius crosses your meridian on one day (or night) until it crosses the meridian on the next day (or night). Mastering astronomy.