Prediction of Positions of Sun and Moon

Joachim Köppen Kiel 2020

This utility computes for any time and location the positions of the Sun and the Moon on the Celestial Sphere and in the sky. Enter the values and hit the 'Enter' key of your keyboard to get the values. A yellow El field indicates that a source is below the horizon. For the moon, the radio fluxes for 1.4 and 10 GHz are computed from a simplified model of the lunar surface temperature.

Station: longitude [W] latitude [N]
Date [YMD] day of year
Time [UT]
Local Sidereal Time

Ra Dec
Az El
Ang.Diameter [deg]

Ra Dec
Az El
Distance [km]
Ang.Diameter [deg]
Geocentric radial velocity. [km/s]
Radial velocity due to Earth rotation [km/s]
Radial velocity (w.r.t. Station) [km/s]
Echo Doppler shift [kHz]    at Freq. [MHz]
Radio Flux 1.4 GHz [Jy]
Radio Flux 10 GHz [Jy]

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