mean sun   (TTS Sound)

The mean_sun has 1 Senses.

• mean sun
• 平均太陽
• a theoretical sun that moves along the celestial equator at a constant speed and completes its annual course in the same amount of time the real sun takes at variable speeds
• 一定の速度で天の赤道に沿って動き、バーチャルスピードで実際の太陽が同じ期間内にその一年の進路を終える理論に基づいた太陽