Sun sports

Observing data ​​h2>

According to observation, the speed of the sun against the neighboring star is 19.7 kilometers per second, heading toward Wu Xianzhan, the 1950.0 class of the measis coordinates are red class α = 184 ± 7, Kingwei δ = + 30 ° ± 1 °. The corresponding silver track coordinates are L 媺 = 56 °, B 媺 = 23 °. This point is called a solar direction, referred to as a point. A little on the night, called the sun back, referred to as the back. The star near the point is approaching the sun, and the viewing speed is at a maximum value. The stars near the back should be gradually adjacent to the sun, and the viewing speed is extremely large in the back point.

Sports Standard

The solar relative to the local stationary standard movement is also called the sun. Local stationary standards can be determined from two aspects. They are all reference standards in the instantaneous center of the sun. One aspect is a dynamic stationary standard, which is defined as the sun around the silver movement. Therefore, all of the sun near the sun, all of the stars are also relatively stationary in this reference standard frame. Another aspect is a native local stationary standard, which makes the spatial speed of all the stars near the sun are zero, which is actually a standard rack of local star-centricly centered local stars.