Webb Society Deep-Sky Observer's Handbook: Double Stars, 2 edition

Kenneth Glyn Jones, "Webb Society Deep-Sky Observer's Handbook: Double Stars, 2 edition"
Kenneth Glyn Jones | 1986 | ISBN: 0894901222 | 0894901222 pages | File type: PDF | 50,6 mb

FOREWORD
The contributions of amateur astronomers to the observing of double tars have Ьееп important. We сап cite the ехатр1е of S.W.Burnham (1838
~ 1921) who used the 1argest instruments of his time, the Reverend т H.E.C.Espin(1858 - 1934) in Eng1and, R.Jonckheere (1889 - 1974), Ог
р. Baize and M.V.Duruy (1894 - 1984) in . The abundance and qua1ity оС these observers' measures аге sufficient evidence of this.
Nowadays, astronomy has made fantastic progress with 1arge groundbased te1escopes so we тау wonder if ап amateur astronomer with his
1imited resources is sti11 аЫе to contribute efficient1y to the observation of the Universe. The answer is YES, for two reasons: То begin with, astronomica1 research does not be10ng exc1usive1y to the professiona1 astronomer because the amateur astronomer сап gain access
to 1arge te1escopes. In addition, amateurs сап Ьиу powerfu1 instruments from firms specia1ising in telescope making and with а 50-ст aperture
most of the binary stars сап Ье observed.
There remains а lack of information оп binary stars since the publications in which measures арреаг аге not easily avai1able to amateurs. Aitken's ооиЫе Star Catalogue was printed in 1932 and по simi1ar publications have appeared since that time.
Опе of the merits of the Webb Society has Ьееп to establish а 1ink between binary star astronomers а11 оуег the wor1d. Accurate observations of orbita1 pairs аге far тоге usefu1 than accumu1ating measurements of тапу пеаг1у motion1ess binaries.
Раul Couteau
Astronome Titulaire
Observatoire de NICE,


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