Photographic Zenith Tube Observations of Mars |
Common terms and phrases
according actual angle applied calculated chromatic aberration close coefficient compared computed coordinates correction correlation DATE DECLINATION VERSUS ZENITH defect of illumination determined difference drive east effect of chromatic ephemeris of Mars equation error in declination expect exposure field Figure five Florida follow formed fraction given grating inclination interpolation interval late-type stars latitude light Mars observations MARS PLATE MEASUREMENTS McCarthy mean measured mercury method MODIFIED DECLINATION VERSUS Naval Observatory object observations of Mars observed and predicted obtain opposition orientation path photographic plate photographic zenith tube planet plotted problem proper motions PZT catalog PZT lens PZT observations recorded reduction represent residuals Richmond PZT right ascension showed shown squares standard taken term tion University of Virginia UTO-UTC VERSUS ZENITH DISTANCE Washington zenith distance