Originally from ticket #7531.
I would like to generate ephemerides of altitude and azimuth of specific stars and the moon that require better that one decimal place accuracy (e.g. 236.0°) for a plot of relative orientation compared to vertical. Three decimal place accuracy is preferred (e.g. 236.052°). However, the ephemeris generator only records altitude and azimuth to one decimal. Can this be changed to three decimal place accuracy? If not, is there a way to convert from right ascension and declination (which are recorded in the ephemerides to greater accuracy) to altitude and azimuth?