Sending a description of the observatory he has erected, containing an equatorially mounted Newtonian reflector. Has high opinion of its efficiency. Has detected a sixth star near the trapezium of Orionis.
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Sending a description of the observatory he has erected, containing an equatorially mounted Newtonian reflector. Has high opinion of its efficiency. Has detected a sixth star near the trapezium of Orionis.
Comments on WL's finding a sixth star in the trapezium of Orion [see WL's 1842-3-10]; lists other catalogues that identify that star.
Sending a letter he has received from a friend regarding a curious observation of the moon. Has seen the comet and encloses diagrams of its position.
Has seen the seventh satellite of Saturn. Encloses diagrams and comments on them.
Comments on WL's observation of the seventh satellite of Saturn as noted in WL's 1846-8-26.
Was in error when in his last letter he stated he had seen the seventh satellite of Saturn; he has yet to see it.
Details of WL's observations of the seventh satellite of Saturn.
Believes that the observations WL has made are quite sufficient to establish the existence of the seventh satellite of Saturn.
Announces, to WL, the discovery of a new planet beyond Uranus, gives co-ordinates, and urges WL to look for satellites 'with all possible expedition.'
Details of WL's observations of a ring and satellite of U. J. J. Leverrier's planet.
Ask WL's permission to make reference to WL's sighting of the seventh satellite of Saturn in JH's observations of all the satellites of Saturn.
About observations of the seventh satellite of Saturn, and using William Parsons' (3rd Earl of Rosse) 'machine'.
Note to accompany details of WL's observations of the satellite of Neptune. [Details are found in WL's letter to H. C. Schumacher of 1847-8-6.]
Grateful for JH's Cape observations. Has nothing new to report on the ring of Neptune. Has been troubled with dew on his prism, but has now succeeded in overcoming this difficulty.
Urges WL to make public his observations of the seventh satellite of Saturn as Otto Struve is about to announce his observation of the same body.
Has sent his observations on Saturn and Neptune to the R.A.S. and encloses a copy for JH. Weather has been unsuitable for many observations recently. Has not heard of any observations of a second satellite of Neptune.
Has received a letter from W. C. Bond of the Cambridge Observatory (U.S.A.), who speaks of the satellite of Neptune. Bond also sends details of the stars around Orion. Relates his own work on the specula of telescopes. Intends to submit a paper on this to the R.A.S.
Is pleased to hear of the discovery of further satellites of Neptune.
Some question of Harvard University observer having observed the satellite [see JH's 1848-9-22] one day before WL.
Outlining the apparent controversy between himself and W. C. Bond over the discovery of the satellites.