What's the difference between the early calendar and the yellow calendar?

The Gregorian calendar is based on the period of Jupiter's movement and the period of bucket handle's rotation of the Big Dipper. This calendar is expressed and described by the unique branch of China-Sixty Flowers Jiazi, which marks the day, month and year with branches. Huangdi adjusted the calendar. First, he should look up at the sky. Check the trip to Jupiter, slap Jupiter before and after, and determine the age according to the direction of Beidou bucket handle, 60 years old; The second is to observe the law from the ground. Look at the twelve bamboo tubes in the secret room. These twelve bamboo tubes are placed on the box and buried in the ground according to twelve positions. The bamboo tube is full of burning ashes of reeds. Every thirty days or so, the ashes in the tube will fly out of the tube and be scattered on the ground in turn. Therefore, the duration can be determined by observing the diffusion state of fly ash on the ground. The solar terms and months can be determined by combining the calendar with the direction of Beidou bucket handle. The scientific leap method adopted in the first year of the year and the taichu calendar method has been used until the China lunar calendar. Luo is one of the founders of Huntian theory. His improved equatorial armillary sphere was used in China for 2000 years. For the first time in the history of astronomy, the solar eclipse cycle of 135 months was accurately calculated, that is, 1 1 year should have 23 eclipses. According to this cycle, humans can predict solar and lunar eclipses and correct the lunar calendar.