A Handbook of Descriptive Astronomy
A Handbook of Descriptive Astronomy
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In our eReader you can find the full English version of the book. Read A Handbook of Descriptive Astronomy Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book A Handbook of Descriptive Astronomy
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The Reflex Zenith-Tube.
9. The Horizontal Floating Collimator. 10. The Vertical Floating Collimator.
CHAP. VI. ] Miscellaneous Astronomical Instruments. 695 ii 13.
The Heliometer. Airy's Orbit- Sweeper. The Comet- Seeker. 14. The Astronomical Spectroscope.
The Altazimuth*, as its name implies, is used for the measure- ment of altitudes and azimuths. It may be considered as a Fig. 251.
THE PORTABLE ALTAZIMUTH, OR TRANSIT THEODOLITE.
modification of the ordinary transit circle, the telescope, cir...cle, and stand of which are capable of motion round a vertical axis. The altazimuth may therefore be used for meridional or extra- meridional observations indifferently, and when of a portable size it may in fact be regarded as a theodolite of a superior construction.
* Pearson, Pract. Ast. , vol. Ii. Pp. 413, 457, 472 ; Heather, Mathematical In- struments, p. 153; Simms, Treatise on Instruments, p. 92 ; English Cyclopaedia, art. Astronomical Circle ; Loornis, Pract. Ast. , p. 93 ; Narrien, Ast.
What to read after A Handbook of Descriptive Astronomy?
You can find similar books in the "Read Also" column, or choose other free books by George F George Frederick Chambers to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The Reflex Zenith-Tube.
9. The Horizontal Floating Collimator. 10. The Vertical Floating Collimator.
CHAP. VI. ] Miscellaneous Astronomical Instruments. 695 ii 13.
The Heliometer. Airy's Orbit- Sweeper. The Comet- Seeker. 14. The Astronomical Spectroscope.
The Altazimuth*, as its name implies, is used for the measure- ment of altitudes and azimuths. It may be considered as a Fig. 251.
THE PORTABLE ALTAZIMUTH, OR TRANSIT THEODOLITE.
modification of the ordinary transit circle, the telescope, cir...cle, and stand of which are capable of motion round a vertical axis. The altazimuth may therefore be used for meridional or extra- meridional observations indifferently, and when of a portable size it may in fact be regarded as a theodolite of a superior construction.
* Pearson, Pract. Ast. , vol. Ii. Pp. 413, 457, 472 ; Heather, Mathematical In- struments, p. 153; Simms, Treatise on Instruments, p. 92 ; English Cyclopaedia, art. Astronomical Circle ; Loornis, Pract. Ast. , p. 93 ; Narrien, Ast.
What to read after A Handbook of Descriptive Astronomy?
You can find similar books in the "Read Also" column, or choose other free books by George F George Frederick Chambers to read onlineMoreLess
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