TY - JOUR T1 - On the Power of Penetrating into Space by Telescopes; with a Comparative Determination of the Extent of That Power in Natural Vision, and in Telescopes of Various Sizes and Constructions; Illustrated by Select Observations. JF - Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London (1800-1843) VL - 1 SP - 5 EP - 7 PY - 1800/01/01/ UR - http://dx.doi.org/10.1098/rspl.1800.0003 M3 - doi:10.1098/rspl.1800.0003 AU - Herschel, W. ER -