The refurbished 1937 observatory is used to observe Halley’s Comet. In its last years, this observatory houses a Celestron 10-inch reflecting telescope.
A 1986 image of Halley’s Comet.
“1P/Halley,” NASA Science Solar System Exploration
Malcolm Browne, “Telescope Builders See Halley’s Comet from Vermont Hilltop,” New York Times, page C3, 20 August 1985
Matt Simon, “Fantastically Wrong: That Time People Thought a Comet Would Gas Us All to Death,” Wired, 7 January 2015
David Hughes, “The History of Halley’s Comet,” Philosophical Transactions of the Royal Society, 30 September 1987
Harold Jones, “Halley as an Astronomer,” Notes and Records of the Royal Society Journal of the History of Science, 1 December 1957
Sydney Chapman, “Edmund Halley, F.R.S. 1656-1742 (A Commemorative Lecture Given on 21 November 1956, at the Royal Society’s Celebration of Halley’s Tercentenary),” Notes and Records of the Royal Society Journal of the History of Science, 1 December 1957