Editing Royal Observatory, Greenwich (section)

===1832 transit of Mercury===
The [[Shuckburgh telescope]] of the Royal Observatory in Greenwich was used for the 1832 [[transit of Mercury]].<ref name="Priestley and Weale-1831" /> It was equipped with a [[filar micrometer]] by [[Peter Dollond]] and was used to provide a report of the events as seen through the small refractor.<ref name="Priestley and Weale-1831">{{Cite book|url=https://books.google.com/books?id=utAUAQAAMAAJ&q=Shuckburgh+telescope+eastern+equatorial&pg=RA1-PA103|title=Monthly Notices of the Royal Astronomical Society|date=1831|publisher=Priestley and Weale|language=en}}</ref> By observing the transit in combination with timing it and taking measures, a diameter for the planet was taken.<ref name="Priestley and Weale-1831" /> They also reported the peculiar effects that they compared to pressing a coin into the Sun.<ref name="Priestley and Weale-1831" /> The observer remarked:

{{quote2|I afterwards observed, that immediately around the planet there was a dusky tinge, making it appear as if, in a small degree sunk below the sun's surface;"|''Royal Astronomical Society, Vol II, No. 13''<ref name="Priestley and Weale-1831" /> }}