On the questions of the usefulness of occultations and the use of mean time in astronomy, JH would much value WS's opinions.
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On the questions of the usefulness of occultations and the use of mean time in astronomy, JH would much value WS's opinions.
Astronomical Society will lend instruments, including a Beaufoy Clock and a transit circle, to WS for his observations.
Discusses WS's comparison of results with transit circle and Astronomical Society catalogue.
Apologizes for incident at meeting; feels partially at fault for encouraging WS to speak on the subject. Advises WS on his microscope order. Stays at Slough because of good observing conditions.
Will visit WS after attending two R.S.L. committee meetings. Asks WS's opinion of usefulness of occultation information in the Nautical Almanac.
Observed two known satellites of Uranus, confirming William Herschel's observations. States, 'I am sure there are more than two.'
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.
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.
Thanks WS for excerpt from Niccolo Cacciatore's letter; comments on the awarding of medals for merit, and points out some necessary conditions which must be considered if the observations of the satellites of Jupiter are to be used in determining the constant of aberration.
Advises WS on best ways to make a 'darkening glass' for solar observations. Also suggests method for delineating sunspots. Hopes WS will attend Nautical Almanac meeting and support his points. Completes two telescope mirrors and observes Uranian satellites. Asks WS to look for a double star between Beta1 and Beta2 Capricorni.
Discusses WS's observations of double stars and method of averaging positional determinations. Believes he has verified the two Uranian satellites observed by William Herschel.
Recommends WS pay attention to planetary nebulae, solid clusters, and double stars in his observations. JH lists some of each.
Wants WS to make a choice between the several skeleton forms JH has devised for recording astronomical observations. Also comments on orbit of Gamma Virginis and 30 Scorpii, as well as Encke's Comet.
Sends double star observations and periods. Asks WS if he has met W. R. Dawes. JH believes JH's eyes to be lacking in light sensitivity.
Notes that 36 Ophiuchi and 30 Scorpii have parallel proper motion; believes that James South overestimates the importance of this fact. Suggests double stars for WHS to observe.
Sends data concerning double stars and new form for making observations of them.
Sends observations of Gamma Virginis, which differ from those of WS and James South. Observed transit of Mercury. Has abandoned plans of going to Cape of Good Hope this year. Plans to visit Caroline Herschel in Hanover.
Returned from Hanover visit. Observed the star WS had discovered between 36 Ophiuchi and 30 Scorpii. Requests WS to observe a nebula in which JH has spotted a triple star. H. C. Schumacher is recovering from illness, while H. W. M. Olbers is very ill and not expected to recover.
Sends positions of Biela's Comet. Has much success with repolished telescope mirrors and collimator. Designs equatorial revolving roof for Cape observations; sends sketches. Compares WS's, W. R. Dawes's, and JH's observations of Gamma Virginis.