XXXIII. Account of some observations tending to investigate the construction of the heavens.
- 31 December 1784
- journal article
- Published by The Royal Society in Philosophical Transactions of the Royal Society of London
- Vol. 74, 437-451
- https://doi.org/10.1098/rstl.1784.0034
Abstract
In a former paper I mentioned, that a more powerful instrument was preparing for continuing my reviews of the heavens. The telescope I have lately completed, though far inferior in size to the one I had undertaken to construct when that paper was written, is of the Newtonian form, the object speculum being of 20 feet focal length, and its aperture 18 7/10 inches.Keywords
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