The second part, from the fascinating forgotten work Oddities: A Book of Unexplained Facts (Allan, London 1928) by R.T. Gould, on the non-existent planet Vulcan. The first part can be found here.
Vulcan Landscape (from Star Trek, the Motion Picture)
Leverrier, once convinced as to the real character of Lescarbault's discovery, lost no time in performing the necessary calculations which that worthy had found so baffling. He obtained, for the new planet's mean distance from the sun, about 13,000,000 miles, and for its period of revolution 19 days 17 hours. Lescarbault, who had seen Mercury in transit over the sun with the same telescope, and the same magnifying power, on May 8, 1845, considered that the new planet (which he decided to name "Vulcan") had a disc rather less than a quarter as large. Accordingly, Leverrier calculated that Vulcan's volume was probably about one seventeenth that of Mercury. It did not escape him that, supposing its mass to be in anything like the same proportion, Vulcan could not be held responsible for more than a small fraction of the disturbances observed to be taking place in Mercury's orbit. He also calculated that Vulcan ought to be in transit on the sun's face on or about April 3rd and October 6th of every year, at which times it should, of course, be visible in the same manner as it had been to Lescarbault. He did not hold out much hope of its being seen at other times, since he computed that its lustre would be so feeble that it might easily remain unseen, even during a total eclipse of the sun.* * Proctor has questioned this statement. By his calculations, Vulcan and Mercury, seen during eclipse at their greatest angular distance from the sun, would appear about equally bright. Continue reading →
Found - a fascinating forgotten work Oddities: A Book of Unexplained Facts (Allan, London 1928) by R.T. Gould. Rupert Thomas Gould (1890 – 1948), was a lieutenant Commander in the British Royal Navy noted for his contributions to horology. While in the navy in WW1 he suffered a nervous breakdown. During long recuperation, he was stationed at the Hydrographer's Department at the Admiralty, where he became an expert on various aspects of naval history, cartography, and expeditions of the polar regions. He gained permission in 1920 to restore the marine chronometers of John Harrison, and this work was completed in 1933. Jeremy Irons played him in Longitude, a dramatisation of Dava Sobel's book about John Harrison Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time, which recounted in part Gould's work in restoring the chronometers.
Something of a polymath, he wrote an eclectic series of books on topics ranging from horology to the Loch Ness Monster. He was a member of the Sette of Odd Volumes (Brother Hydrographer) and the book Oddities is dedicated to the club. He was a science educator, giving a series of talks for the BBC's Children's Hour starting in January 1934 under the name "The Stargazer", and these collected talks were later published. He was a member of the BBC radio panel Brains Trust. He umpired tennis matches on the Centre Court at Wimbledon on many occasions during the 1930s. This is the first part of the chapter on the planet Vulcan (more to follow)-