6 public-domain matches
Observations Astronomical
Recent Publications.: Astronomical Observations made at the Sydney Observatory in the year 1859
Astronomical Observations Made in the Austrian Netherlands in the Years 1773, 1774, and 1775. By Nathaniel Pigott, Esq. F. R. S. Foreign Member of the Academies of Brussels and Caen, and Correspondent of the Royal Academy of Sciences at Paris
Remarks on an Apparatus for determining those Errors of astronomical Observations which are caused by the Flexures of an Instrument and by Defects in the Shape of its Pivots
On the Necessarry Distinction in Practical Astronomy between the True Mean Solar Day and the Mean Day adopted, from time to time, in the Construction of our Astronomical Tables, and in the Comparison of these Tables with Observations
