Chinese New Year starts with the New Moon on the first day of the new year and ends on the full moon 15 days later. The 15th day of the new year is called the Lantern Festival, which is celebrated at night with lantern displays and children carrying lanterns in a parade. The Chinese calendar is based on a combination of lunar and solar movements. The lunar cycle is about 29.5 days. In order to "catch up" with the solar calendar the Chinese insert an extra month once every few years (seven years out of a 19-yearcycle). This is the same as adding an extra day on leap year. This is why, according to the solar calendar, the Chinese New Year falls on a different date each year. New Year's Eve and New Year's Day are celebrated as a family affair, a time of reunion and thanksgiving.
The celebration was traditionally highlighted with a religious ceremony given in honor of Heaven and Earth, the gods of the household and the family ancestors. The sacrifice to the ancestors, the most vital of all the rituals, united the living members with those who had passed away. Departed relatives are remembered with great respect because they were responsible for laying the foundations for the fortune and glory of the family.
Chinese New Year 2011 is falling on February 3. The Chinese New Year is celebrated as the symbol of spring's celebration. In fact, in China it is still called the Spring festival. It is celebrated after the fall harvest and before the spring planting season. The date of the Chinese New Year is always changing and is dependant on the Chinese calendar. Emperor Huangdi in the year 2637 B.C.E invented the Chinese calendar.
The Chinese calendar is a combined solar/lunar calendar and is somewhat similar to the Chinese calendar. For the purpose of determining the dates of the Chinese New Year some astronomical calculations need to be taken care of. Firstly, we need to determine the dates for the new moon. The new moon is the black moon that is when the moon is in conjunction with the sun.
The date of the new moon is taken as the first day of the new month. Secondly those dates are determined when the sun's longitude is the multiple of 30 degrees. These dates are termed as Principal terms and are used for determining the number of each month.
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