iridial angle

例句：

1. 1. The planet Venus is known for its beautiful blue color and the fact that it has an iridial angle of 28 degrees.
   金星以其美丽的蓝色和它拥有28度的赤纬角而闻名。
2. 2. Astronomers use this angle to calculate the distance between the Earth and the Sun.
   天文学家使用这个角度来计算地球与太阳之间的距离。
3. 3. The iridial angle can be used to determine the time of day when a star appears in the sky.
   赤纬角可以用来确定星星在天空中出现的时间。