Corrections for the gravitational deflection of light in the case of observations with an astrolabe
Abstract
Formulas for corrections for the gravitational deflection of light to be added to time and latitude observational results in the case of an astrolabe are established. The formulas permit the direct calculation of corrections for an observational group, instead of doing so for each star and then calculating the final corrections for the observational group. Test results confirming the usefulness of the formulas are summarized.
 Publication:

Astronomy and Astrophysics
 Pub Date:
 June 1983
 Bibcode:
 1983A&A...123...22L
 Keywords:

 Astrolabes;
 Gravitational Lenses;
 Instrument Errors;
 Optical Correction Procedure;
 Coordinates;
 Zenith;
 Astronomy