Showing 1–9 of 9 items
The Sir John Herschel Collection
The preparation of the print Calendar of the Correspondence of Sir John Herschel (Michael J. Crowe ed., David R. Dyck and James J. Kevin assoc. eds, Cambridge, England: Cambridge Univ. Press, 1998, viii + 828 pp) which was funded by the National Science Foundation, took ten years. It was accomplished by a team of seventeen professors, visiting scholars, graduate students, advanced undergraduates, and staff working at the University of Notre Dame.
The first online version of Calendar was created in 2009 by Dr Marvin Bolt and Steven Lucy, working at the Webster Institute of the Adler Planetarium, and it is that data that has now been reformatted for incorporation into Ɛpsilon.
Further information about Herschel, his correspondence, and the editorial method is available online here: http://historydb.adlerplanetarium.org/herschel/?p=intro
No texts of Herschel’s letters are currently available through Ɛpsilon.
Gives a formula related to a table published in the Nautical Almanac, which table listed various stellar observations made by John Pond.
Writing in response to claims made by Josef Fraunhofer, discusses the relative merits of reflecting versus refracting telescopes. Adds comments on double star observations made by JH and James South.
Reports observations of Delta Cygni, 4 Aquarii, Alpha 2 Capricorni, and Biela's Comet.
Reports erecting his telescopes at the Cape and on his observations, especially of double stars, during his first year there.
Reports observations of the 'remarkable' increase in magnitude of the 'nebulous' star Eta Argus.
Reports on his observations of the variable stars Eta Argus, Alpha Hydrae, and Alpha Cassiopeiae, and on the comparative brightness of the stars. Mentions that ill health is forcing him to curtail astronomical observing.
Discusses the question of whether the position of the moon has an influence on weather and whether either JH or his father have made this claim.
Reports observations of the comet of March 1843 [Great Comet of 1843] made from India by a Mr. Clerihew, who reported seeing a bifurcation of the comet's tail.
Discusses critically a theory put forth by J. C. Houzeau on the 'effect of aberration arising from proper motion in changing the apparent orbits of double stars.'