Is still working on the distribution list for star catalogues [see GA's 1846-11-19].
Showing 61–80 of 166 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.
Is still working on the distribution list for star catalogues [see GA's 1846-11-19].
Asks GA if he knows of any rules or pitfalls in calculating time from earlier times [even B.C.] to the present.
Needs a good artisan to construct the framework of a solar spectrum photographic apparatus.
Would support improvements, both in number and quality, of lunar observations at the Royal Observatory; current practices produce unacceptably large predictive errors.
Responds to GA's 1849-4-4, and sends the key.
Is making a case for JH's priority claims with regard to the means of determining double star orbits, in conflict with Yvon Villarceau.
Extended comments about some of GA's statements in GA's abstract of Yvon Villarceau's papers on double stars [see GA's 1849-4-11].
Seeking information to help JH prepare an obituary notice, for the R.A.S., of F. W. Bessel.
The books are on their way [see GA's 1847-3-30].
Will be happy to supply a copy of the Cape Results [see GA's 1847-9-27]; the next asteroid should be called Flora, to provide 'young goddesses for Mars and Jupiter to admire.'
Has obtained puzzling results when reducing JH's observations of the sixth satellite of Saturn.
JH has revised his account of the moon's motions given in JH's Treatise Astr. in preparation for JH's Outlines Astr.
Has made some minor adjustments in JH's satellite of Saturn results [see JH's 1846-11-2], but the major discrepancy still exists.
GA's suggestions [see GA's 1846-11-19] have helped JH solve his problem; now JH has a problem with observations of the second satellite of Saturn.
Proposes that R.A.S. award medals regarding the discovery of Neptune to both U. J. J. Leverrier and J. C. Adams, giving first honors to Leverrier, and specifying distinctly the grounds for awarding the second. Hopes his resolution will not be seen as blaming anyone and that it will have a 'healing and a friendly effect.'
Has a problem with the explanation of interference bands produced by mica being placed between the eye and prism-produced dispersion; the explanation is Baden Powell's.
Writes to supply GA with an address for a reply to JH's 1840-5-16.
Remarks in response to GA's 1848-10-4..
Thanks GA for the time and trouble GA took in writing about interference bands [see GA's 1840-5-17]; JH's wife, Margaret, is making many visits to the dentist.
A note agreeing with GA about prism interference [see GA's 1840-5-20].