Tag Archives: Specola Guestbook

Specola Guestbook: July 21, 1911 – Joel Metcalf

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This entry is part 24 of 24 in the series Specola Guestbook

Since its founding in 1891, many people have passed through the doors of the Vatican Observatory.  A quick perusal of our guestbook reveals several Names, including Popes, nobel laureates, astronauts, actors, and saints. Today’s guestbook entry is from July 21, 1911, when Joel Metcalf made a visit. Next to his name, Rev. Joel Hastings Metcalf (1866-1925) wrote “Winchester, Mass.”  He was a Unitarian minister and an avid amateur astronomer who specialized in hunting asteroids and comets. Between 1905 and 1914, he discovered 41 asteroids and several comets. He was a member of the visiting committees of the Harvard Observatory and the Ladd Observatory (Brown U.) The asteroids 726 Joëlla and 792 Metcalfia (both among the 41 he discovered) are named for him, and several of the comets he discovered also bear his name.       … Continue reading →

Specola Guestbook: June 21, 1911 – Robert S. Woodward

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This entry is part 23 of 24 in the series Specola Guestbook

Since its founding in 1891, many people have passed through the doors of the Vatican Observatory.  A quick perusal of our guestbook reveals several Names, including Popes, nobel laureates, astronauts, actors, and saints. Today’s guestbook entry is from June 21, 1911, when Robert S. Woodward made a visit. Next to his name, Robert Simpson Woodward (1849-1924) wrote, “President Carnegie Institution of Washington, Washington, D.C.” From 1884-1890, he was an astronomer for the U.S. Geological Survey. From 1890-1893, he served in the U.S. Coast and Geodetic Survey, during which he developed an inexpensive technique that improved how base lines are established. Following that, he was a professor of mechanics and mathematical physics at Columbia University until 1905, when he became the second president of the Carnegie Institution (after Daniel C. Gilman). During his tenure, the scientific reputation of the Carnegie Institution grew. Woodward also served as president of the American Mathematical Society, president of the American Association for the Advancement of … Continue reading →

Specola Guestbook: April 20, 1911 – George C. Comstock

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This entry is part 22 of 24 in the series Specola Guestbook

Since its founding in 1891, many people have passed through the doors of the Vatican Observatory.  A quick perusal of our guestbook reveals several Names, including Popes, nobel laureates, astronauts, actors, and saints. Today’s guestbook entry is from April 20, 1911, when George C. Comstock made a visit. Next to his name, George Cary Comstock (1855-1934) wrote, “Madison, Wis. Washburn Observatory.” He was the director of Washburn Observatory (part of the University of Wisconsin – Madison) from 1887 until his retirement in 1922. As an astronomer, he mostly studied stellar aberration, atmospheric refraction, and the proper motion of double stars. He was a founding member of the American Astronomical Society in 1899 and was a coauthor of its constitution. He served as its first secretary, and in 1925 was elected president. In 1899 he became a member of the National Academy of Sciences.   … Continue reading →

Specola Guestbook: March 20, 1911 – P. H. Cowell

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This entry is part 21 of 24 in the series Specola Guestbook

Since its founding in 1891, many people have passed through the doors of the Vatican Observatory.  A quick perusal of our guestbook reveals several Names, including Popes, nobel laureates, astronauts, actors, and saints. Today’s guestbook entry is from March 20, 1911, when P. H. Cowell made a visit. Next to his name, Philip Herbert Cowell F.R.S. (1870-1949) wrote, “Nautical Almanac Office, Gray’s Inn, London.” He was superintendent of the H.M. Nautical Almanac Office, part of the Royal Greenwich Observatory, from 1910-1930. As an astronomer, he was particularly dedicated to celestial mechanics, computing and refining the orbits of many comets and other solar system bodies. He developed a method for computing perturbations in an orbit that proved to be both relatively simple and robust.  He is known for refining the orbit of the moon and resolving a discrepancy between its observed orbit and its theoretical orbit. He also showed that the supposed perturbations of the orbit of Neptune–that suggested the existence … Continue reading →

Specola Guestbook: Dec 13, 1910 – Maurycy Rudzki

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This entry is part 20 of 24 in the series Specola Guestbook

Since its founding in 1891, many people have passed through the doors of the Vatican Observatory.  A quick perusal of our guestbook reveals several Names, including Popes, nobel laureates, astronauts, actors, and saints. Today’s guestbook entry is from December 13, 1910, when Maurycy Rudzki made a visit. Next to his name, Maurycy Pius Rudzki (1862-1916) wrote, “k.k. Sternwarte Krakau” (The Royal Observatory of Krakow). [n.b. Moritz is a variation of Maurycy] Rudzki was a geophysicist who directed the department of geophysics and meteorology at Jagiellonian University in Krakow, Poland. He was the first person to be formally called a professor of geophysics. He established the first seismological observatory in Krakow, and in 1904 started the bulletin, Resultate der meteorologischen, seismologischen und magnetischen Beobachtungen an der k.k. Sternwarte in Krakau. His research included seismology, oceanography, meteorology, and cartography.  In geophysics, his research focused on elastic anisotropy as it pertained to the propagation of seismic waves.     … Continue reading →

Specola Guestbook: Oct 21, 1910 – Guido Horn d’Arturo

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This entry is part 19 of 24 in the series Specola Guestbook

Since its founding in 1891, many people have passed through the doors of the Vatican Observatory.  A quick perusal of our guestbook reveals several Names, including Popes, nobel laureates, astronauts, actors, and saints. Today’s guestbook entry is from October 21, 1910, when Guido Horn made a visit. Next to his name, Guido Horn d’Arturo (1879-1967) wrote, “R. osservatorio astronomico di Torino” (Royal astronomical observatory of Turin). He was an astronomer who in 1921 would become the director of the Bologna observatory. Born in Trieste, he studied in Vienna and then worked at observatories in Trieste, Catania, Turin (where he was at the time of his visit to the Specola) and the Roman College, before ending up in Bologna. During World War I (i.e. after his visit to the Specola), Guido Horn added d’Arturo to his name to Italianize it. He served in the Italian army, though his native Trieste was part of the Austro-Hungarian empire at that time.  At the … Continue reading →

Specola Guestbook: July 11, 1910 – Emily Dobbin

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This entry is part 18 of 24 in the series Specola Guestbook

Since its founding in 1891, many people have passed through the doors of the Vatican Observatory.  A quick perusal of our guestbook reveals several Names, including Popes, nobel laureates, astronauts, actors, and saints. Today’s guestbook entry is from July 11, 1910, when Emily Dobbin made a visit. Next to her name, Emily Elisabeth Dobbin (1875-1949) wrote, “Inst. Math & Surveying, M.A.H.S., St. Paul, Minn.” (Instructor of Mathematics and Surveying, Mechanic Arts High School, St. Paul MN) Dobbin was trained as an astronomer, receiving a masters’ degree from the University of Chicago in 1903. She worked at Yerkes Observatory, resulting in two single-authored publications (one on the orbit of the Jovian satellite Amalthea and another on Orion-type stars). However, her astronomical career never really progressed past that point. She taught mathematics, first at the University of Missouri, and then at a high school in St. Paul, Minnesota. Dobbin is particularly notable for her work in an entirely different field: that of … Continue reading →

Specola Guestbook: July 11, 1910 – Anne Sewell Young

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This entry is part 17 of 24 in the series Specola Guestbook

Since its founding in 1891, many people have passed through the doors of the Vatican Observatory.  A quick perusal of our guestbook reveals several Names, including Popes, nobel laureates, astronauts, actors, and saints. Today’s guestbook entry is from July 11, 1910, when Anne Sewell Young made a visit. Next to her name, Anne Sewell Young (1871-1961) wrote, “John Payson Williston Observatory, South Hadley, Mass.” After finishing an M.S. at Carleton College, Young came to Mount Holyoke College in 1898 where she became director of the John Payson Williston Observatory. Meanwhile, she completed her Ph.D. from Columbia University in 1906. Her astronomical research involved many fields: her Ph.D. was a survey of stars in the constellation Perseus. She also supervised research on sunspots and a student expedition to observe a solar eclipse in 1925. Her primary interest was variable stars. She was a founding member of the American Association of Variable Star Observers and became its president in 1923.   … Continue reading →

Specola Guestbook: June 20, 1910 – Arthur L. Day

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This entry is part 16 of 24 in the series Specola Guestbook

Since its founding in 1891, many people have passed through the doors of the Vatican Observatory.  A quick perusal of our guestbook reveals several Names, including Popes, nobel laureates, astronauts, actors, and saints. Today’s guestbook entry is from June 20, 1910, when Arthur Day made a visit. Next to his name, Arthur Louis Day (1869-1960) wrote, “Geophysical Laboratory, Washington D.C.” In 1907, Arthur Day became the first director of the Geophysical Laboratory of the Carnegie Institution in Washington D.C.  The founding of the laboratory was a direct result of his research on rock-forming minerals while he was with the U.S. Geological Survey.  He is most noted for research on the isomorphism and thermal properties of feldspars. He also contributed research in vulcanology, seismology and geothermal energy. He was vice president of the National Academy of Science from 1933-1941, and became president of the Geological Society of America in 1938. In 1941, the Geological Society of London awarded Day the Wollaston … Continue reading →

Specola Guestbook: May 18, 1910 – Oskar Backlund

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This entry is part 15 of 24 in the series Specola Guestbook

Since its founding in 1891, many people have passed through the doors of the Vatican Observatory.  A quick perusal of our guestbook reveals several Names, including Popes, nobel laureates, astronauts, actors, and saints. Today’s guestbook entry is from May 18, 1910, when Oskar Backlund made a visit. Next to his name, Johan Oskar Backlund FRS (1846-1918) — known in Russia as Oskar Andreevich Backlund — wrote simply, “Pulkova.” Originally Swedish, Backlund moved to Russia in 1876. He worked at the Polkovo Observatory, becoming its director in 1895. His primary astronomical work was developing a very precise orbit for the comet Encke, including the effect of perturbations from planets and other significant objects. From this, he also attempted to estimate the masses of those objects; particularly Mercury. Other work included geodetic measurements of Spitzbergen at the end of the 19th century. The asteroid 856 Backlunda, the lunar crater Backlund, and the terrestrial mountain Backlundtoppen (near Spitzbergen) all are named for him. … Continue reading →

Specola Guestbook: May 12, 1910 – Benjamin Baillaud

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This entry is part 14 of 24 in the series Specola Guestbook

Since its founding in 1891, many people have passed through the doors of the Vatican Observatory.  A quick perusal of our guestbook reveals several Names, including Popes, nobel laureates, astronauts, actors, and saints. Today’s guestbook entry is from May 12, 1910, when Benjamin Baillaud made a visit. Next to his name, Édouard Benjamin Baillaud (1848-1934) wrote simply, “Paris.”  This was his first of several visits to the Vatican Observatory over many years. From 1878 to 1907, he served as director of the Tolouse Observatory, and from 1907-1926 he was director of the Paris Observatory. When he became director of the Paris Observatory, he undertook the revitalization of the Carte du Ciel project, which had been flagging. Baillaud was the founding president of the International Astronomical Union in 1919. He was also the founding president of the International Time Bureau.  He was responsible for the time signal broadcast from the Eiffel Tower. There is a crater bearing his name on the … Continue reading →

Specola Guestbook: May 4, 1910 – van de Sande Bakhuyzen

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This entry is part 13 of 24 in the series Specola Guestbook

Since its founding in 1891, many people have passed through the doors of the Vatican Observatory.  A quick perusal of our guestbook reveals several Names, including Popes, nobel laureates, astronauts, actors, and saints. Today’s guestbook entry is from May 4, 1910, when H. G. van de Sande Bakhuyzen made a visit. Next to his name, Hendricus Gerardus van de Sande Bakhuyzen (1838-1923) wrote simply, “Leiden.” He was the director of the Leiden Observatory in the Netherlands from 1872-1923. Most of his research dealt with asteroid observations. He also made the connection between the comet 3D/Biela and a meteor shower. There is a crater on Mars named Bakhuysen in his honor, due to his publication of drawings of Mars made by Johann Schroter.   … Continue reading →