Richard A. Proctor 
Half hours with the Telescope [EPUB ebook] 

Sokongan

The object which the Author and Publisher of this little work have proposed to themselves, has been the production, at a moderate price, of a useful and reliable guide to the amateur telescopist.
Among the celestial phenomena described or figured in this treatise, by far the larger number may be profitably examined with small telescopes, and there are none which are beyond the range of a good 3-inch achromatic.
The work also treats of the construction of telescopes, the nature and use of starmaps, and other subjects connected with the requirements of amateur observers.

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Bahasa Inggeris ● Format EPUB ● Halaman-halaman 125 ● ISBN 9783749432066 ● Saiz fail 0.4 MB ● Penerbit Books on Demand ● Diterbitkan 2019 ● Edisi 1 ● Muat turun 24 bulan ● Mata wang EUR ● ID 7421880 ● Salin perlindungan Social DRM

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