Archived posting to the Leica Users Group, 2004/01/22
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> * Here are the rules: > 1. All calculations and observations are based on the meridian 120 degree > East (115 degree East for Vietnam) > 2. The day starts at midnight (it used to start at the beginning of the > first hour, the hour of the rat, which starts at 11:00pm) > 3. The day on which occur the new moon is the first day of the month > 4. The winter solstice (dong zhi jie qi) must fall in the 11th month of the > year > 5. If there are 13 lunar months between 2 winter solstices, one of them must > necessarily not have a zhongqi**; that month is the leap month in the > corresponding year (hence a leap year has 13 lunar months). > > ** The solar year is divided into 24 jieqi, each corresponding to positions > of the Earth along its orbit, each 15 degree apart. The length of each > jieqi varies from 14 to 16 days, varying with the speed of Earth along its orbit. > Every other jieqi is a zhongqi; the winter solstice is a zhongqi. And I thought figuring out when Friday is for FS/WTB posts was difficult. Doug Herr Birdman of Sacramento http://www.wildlightphoto.com - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html