Question

Определите линейный радиус луны, если во время наблюдений стало известно, что ее горизоетальный параллакс в это время равнн 57', а угловой радиус - 15,5'. радиус земли 6400 км

Answer 1

Расстояние до Луны L=R/sina; r=L*sinb=R*sinb/sina=1740
R - радиус Земли, r - Луны, a - параллакс, b - угловой радиус Луны
sinb/sina=57/15,5, для малых углов это вполне приемлимо

Answer 2

Calculating the Linear Radius of the Moon

To calculate the linear radius of the Moon, we can use the formula for calculating the linear radius using the horizontal parallax and the angular radius. The formula is:

Linear radius = (Angular radius * Distance to the object) / Horizontal parallax

Given: - Horizontal parallax of the Moon = 57' - Angular radius of the Moon = 15.5' - Radius of the Earth = 6400 km

We need the distance to the Moon to calculate its linear radius. However, the distance to the Moon is not provided in the user's question. Therefore, without the distance to the Moon, it's not possible to calculate the linear radius accurately.

If the distance to the Moon is provided, we can use the formula to calculate the linear radius of the Moon.

Let me know if you have the distance to the Moon, and I can help you calculate the linear radius using the provided information.

Source: - Source - ' - .. - 1988'