Star Altitude and Azimuth

To find altitude and azimuth of a star, enter the following information: star declination (δ), local hour angle (t_m) and reckoned latitude (φ_c). Each value is entered into two fields, degrees and minutes. Degrees for declination and latitude are entered in the range of 0 ° to 89 °, and for the hour angle in the range from 0 ° to 179 °, minutes from 00.0` to 59.9`, do not forget to select the appropriate name for the values in the drop-down lists​​.

https://github.com/AndreiMasalykin/CelestialNavCalc