No summary available.
Showing 1–12 of 12 items
No summary available.
Of JG's travels in the south of France, fighting in France, and family news.
Is very pleased with the results of WD's double star observations of Zeta Cancri, which William Stratford forwarded to JH.
Suggests an improvement in measuring techniques for astronomical observations, by making the angular measurement by direct and then reflected vision. JH wonders whether this idea might be appended to a paper currently under consideration by the R.A.S.
Discusses a variety of observations related to double stars, and asks FS to make some specific observations to compare with JH's work. Reveals JH's dream of going to the Southern Hemisphere for a number of years, but asks FS to keep it quiet, as 'many ties' stand in the way.
Comments with great satisfaction on WD's observations, and their close agreement with JH's for many of the same double stars.
Sends details of the measurement of Wilhelm Struve's standard. Is pleased that JH has given an invitation to [E. de?] Beaumont, who is anxious to become an astronomer and is about to spend £1,200 on instruments. Wishes that JH appeared in town more often.
Has determined the periods of four double stars. JH considers the determination of the elliptical orbits of double stars as 'one of the greatest [discoveries] ever made.'
Vacant rooms at Somerset House and possibility of the R.A.S. being allocated some. Suggests a meeting with Frederick Augustus (Duke of Sussex) to press their cause.
Further remarks on the possibility of rooms for R.A.S. at Somerset House. Will be pleased to see him at the visitation. Is working on a paper on the proper motion of the stars.
Is sending WW a large collection of writings on optics and light.
When they last met, JH had promised to show him some of the wonders of his 20-ft. reflector. Is in town for a few days and would welcome the chance of visiting him.