TY  - JOUR
T1  - Experiments for Ascertaining How Far Telescopes Will Enable us to Determine Very Small Angles, and to Distinguish the Real from the Spurious Diameters of Celestial and Terrestrial Objects: With an Application of the Result of these Experiments to a Series of Observations on the Nature and Magnitude of Mr. Harding's Lately Discovered Star. 
JF  - Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London (1800-1843)
VL  - 1
SP  - 166
EP  - 171
PY  - 1800/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1800.0094
M3  - doi:10.1098/rspl.1800.0094
AU  - Herschel, W.
ER  -