Garrett Putman Serviss: Astronomy with an Opera-glass
A Popular Introduction to the Study of the Starry Heavens with the Simplest of Optical Instruments
Produkttyp: | eBook-Download |
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Verlag: | Good Press |
Erschienen: | |
Sprache: | Englisch |
Seiten: | 2.714 (Druckfassung) |
Format: | EPUB
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Download: | 3,6 MB |
Astronomy with an Opera-glass is a useful handbook for those interested in stargazing without telescopes. The entrancing maps of the night sky will be useful for anyone with a curious mind. Excerpt: "It makes no difference at what time of the year such observations are begun, but for convenience, I will suppose that they are begun in the spring. We can then follow the revolution of the heavens through a year…"