Observations

Letter by H C Russell, 24 March 1871

Letter by H C Russell, 24 March 1871
Letter by H C Russell, 24 March 1871

338

Govt Observatory
Sydney March 24 1871

Dear Sir

The deep interest you have expressed in the Nebula about 7 August assures me that you will excuse the liberty I have taken in addressing you upon the subject.

I was appointed to my present office in July last and have taken the first opportunity to give what evidence I could in this most interesting question. The Instrument used is a very good one by “Merz”?? and the results which ?? indicate its qualities.

The micrometer is a good parallel [sic] wire one and I have used it so that the two coordinates of each star were determined at the same time as it was necessary to repeat the measures (taken by difference of transit) the number of measures has been given.

There can I think be no doubt that some of the stars are drifting and of the nebula: or at last moving to the preceding side but I have been astonished how little change has taken place amongst them in 35 years.

Sir John Herschel

Related