Author: keisanauto0724

Conversion of semi-major axis to orbital period

Convert the semi-major axis of the orbit to the orbital period.

The aperture size of a telescope required to observe nth-magnitude stars

Let's calculate what size telescope (in mm) is needed to observe an nth-magnitude star.

Calculating Telescope Performance Ver. 1.1

Calculates a telescope's light-gathering power, resolution, limiting magnitude, and optimal magnification.

Radius of a star (calculated from surface temperature and luminosity)

We calculate the star's radius based on its surface temperature and spectral class (please note that errors may occur if the star is very luminous or located far from the main sequence on the HR diagram, so please use this information for reference only).

The longest exposure time that allows stars to appear as points of light when the camera is mounted on a tripod

Calculate the maximum exposure time required to capture stars as point sources without equatorial tracking.