Ron Torell, former University of Nevada Extension livestock specialist now retired, wrote a few years back that most cows pay for themselves by age six. âThus, the longer a cow stays in the herd, the more profitable she becomes.
Naturally, these hours, minutes, and seconds are shorter than the solar hours, minutes, and seconds you are familiar with. One solar day is 24 solar hours long, and one sidereal day is 24 sidereal hours long, but one sidereal day is 23 solar hours and 56 solar minutes long. This exercise was based on a help section of CyberSky. A shareware version of CyberSky is available from http://www.cybersky.com .
From one meridian passage of the Sun to the next, the Earth has to therefore rotate approximately 361 degrees. A solar day is therefore 4 minutes longer than a sidereal day. If measured using the sidereal day as the unit of time, the Sun's meridian passage would occur about 4 minutes later each day.