Discusses various apparent errors JS has been detecting in observing double stars with two different telescopes. Assures JH that no serious problems exist.
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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.
Discusses various apparent errors JS has been detecting in observing double stars with two different telescopes. Assures JH that no serious problems exist.
Reports on various observations of double stars that JS has made. Asks JH to check some of JS's results.
Reports on efforts to make measurements regarding 39 Boötes. Accepts JH's invitation for JS and wife to visit JH at Slough.
Discusses observations he had made of various stars, especially a star in Capricorn that William Herschel believed to be a gravitational double. Has observed 61 Cygni.
Discusses a paper by [Edward] Troughton and work that JH and JS were preparing. Remarks on observations of 61 Cygni and of Sigma Cassiopeia.
Writing in confidence, informs JH of a conversation with Humphry Davy concerning the appointment of assistants for John Pond, Astronomer Royal. Situation complicated by Pond's precarious health and the widespread belief that JH would be the appropriate successor to Pond.
Will bring a transit instrument to Slough so that JH and JS can determine its longitude. Proposes joint observations of the satellites of Saturn. Has been observing 61 Cygni.
Has been ill. Should we publish our observations of 340 double stars or extend the number to 400?