Suggests that phenomenon in observing Jupiter satellite was an optical illusion. Asks WS to observe spots on Mars to confirm observations of William Pearson. Asks WS to contribute to W. S. Stratford memorial.
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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.
Suggests that phenomenon in observing Jupiter satellite was an optical illusion. Asks WS to observe spots on Mars to confirm observations of William Pearson. Asks WS to contribute to W. S. Stratford memorial.
Informs WS that JH located Encke's Comet the previous night, and gives the location.
Sends information on occultation of Alpha Tauri. Describes meteors sighted during the night of 12 Aug.
Observed two known satellites of Uranus, confirming William Herschel's observations. States, 'I am sure there are more than two.'
Mr. Stocken[?] has discovered a comet; have been unable to observe it due to poor weather.
Agrees to contribute to W. S. Stratford memorial presentation. Agrees with JH that Jupiter satellite observation was an optical illusion; sends sketches of more Jupiter observations. Sends data obtained with new instruments.
Microscopes installed successfully. Describes observation of second satellite of Jupiter transiting the disk of the planet and how it seemed to linger at the planet's edge.
John Lee donation pleases JH; concerned over who to appoint to take charge of the instrument. Asks WS to write account of aurora sighting for a scientific journal.
John Lee has obtained transit circle for Astronomical Society. WS suggests someone other than Thomas Maclear operate it so Maclear has time for occultation project. Details observations of aurora.
Will visit WS after attending two R.S.L. committee meetings. Asks WS's opinion of usefulness of occultation information in the Nautical Almanac.