Publications of the Astronomical Society of the Pacific Volume 6 download book
Publications of the Astronomical Society of the Pacific Volume 6 download book
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Author: Astronomical Society of the Pacific
Number of Pages: 106 pages
Published Date: 06 Mar 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: Englishhttps://d4rri9bdfuube.cloudfront.net/assets/images/book/large/9781/1302/9781130232677.jpg
Type: eBook
ISBN: 9781130507805
File Name: Publications.of.the.Astronomical.Society.of.the.Pacific.Volume.6.pdf
Download Link: Publications of the Astronomical Society of the Pacific Volume 6
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1894 Excerpt: ...of the college in 1865. The equatorial telescope has an objective of i2i inches aperture and a focal length of 16 feet. It was originally made by Fitz of New York, but in 1872 the glass was re-cut by Clark, and in 1888 the telescope was re-mounted by Warner & Swasey. It was also at that time provided with electrical illumination for the filar micrometer. The magnifying powers, negative and positive, range from 150 to 600. A spectroscope made by Brashear was added in 1890. This spectroscope has a prism for star spectra and a Rowland grating for the solar spectrum. There is also a Browning direct-vision spectroscope. The transit circle has an objective apertune of 3 inches. It was made by Young of Philadelphia. In 1889 it was re-mounted by SaegMuller. The clock and chronograph are of Bond manufacture. Beside the mounted instruments, the observatory has two portable telescopes of 3 and 6-inch apertures, both made by Clark; also a universal instrument from Wanschaff of Berlin. The instruments are used almost altogether for purposes of instruction. There are three classes in each college semester. The portable telescopes are exclusively devoted to class uses, and the spectroscope is at present (1894) serving the needs of a class of seven in solar physics, who are required to themselves observe the phenomena discussed in the lecture. The second-year-students in astronomy have practical instruction with both the meridian and equatorial instruments. Therefore only such occasional independent observations can be made as will not interfere with the regular duties of the department. A few articles on comet places, features of Jupiter and the new star in Auriga, have been published during the past two years. The meteorological equipment consists of maximum and mini...
Read online Publications of the Astronomical Society of the Pacific Volume 6 Buy Publications of the Astronomical Society of the Pacific Volume 6 Download and read Publications of the Astronomical Society of the Pacific Volume 6 ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent Download to iPad/iPhone/iOS, B&N nook Publications of the Astronomical Society of the Pacific Volume 6 ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent
Publications of the Astronomical Society of the Pacific Volume 6 by Astronomical Society of the Pacific
Author: Astronomical Society of the Pacific
Number of Pages: 106 pages
Published Date: 06 Mar 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: Englishhttps://d4rri9bdfuube.cloudfront.net/assets/images/book/large/9781/1302/9781130232677.jpg
Type: eBook
ISBN: 9781130507805
File Name: Publications.of.the.Astronomical.Society.of.the.Pacific.Volume.6.pdf
Download Link: Publications of the Astronomical Society of the Pacific Volume 6
---------------------------------------------------------------
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1894 Excerpt: ...of the college in 1865. The equatorial telescope has an objective of i2i inches aperture and a focal length of 16 feet. It was originally made by Fitz of New York, but in 1872 the glass was re-cut by Clark, and in 1888 the telescope was re-mounted by Warner & Swasey. It was also at that time provided with electrical illumination for the filar micrometer. The magnifying powers, negative and positive, range from 150 to 600. A spectroscope made by Brashear was added in 1890. This spectroscope has a prism for star spectra and a Rowland grating for the solar spectrum. There is also a Browning direct-vision spectroscope. The transit circle has an objective apertune of 3 inches. It was made by Young of Philadelphia. In 1889 it was re-mounted by SaegMuller. The clock and chronograph are of Bond manufacture. Beside the mounted instruments, the observatory has two portable telescopes of 3 and 6-inch apertures, both made by Clark; also a universal instrument from Wanschaff of Berlin. The instruments are used almost altogether for purposes of instruction. There are three classes in each college semester. The portable telescopes are exclusively devoted to class uses, and the spectroscope is at present (1894) serving the needs of a class of seven in solar physics, who are required to themselves observe the phenomena discussed in the lecture. The second-year-students in astronomy have practical instruction with both the meridian and equatorial instruments. Therefore only such occasional independent observations can be made as will not interfere with the regular duties of the department. A few articles on comet places, features of Jupiter and the new star in Auriga, have been published during the past two years. The meteorological equipment consists of maximum and mini...
Read online Publications of the Astronomical Society of the Pacific Volume 6 Buy Publications of the Astronomical Society of the Pacific Volume 6 Download and read Publications of the Astronomical Society of the Pacific Volume 6 ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent Download to iPad/iPhone/iOS, B&N nook Publications of the Astronomical Society of the Pacific Volume 6 ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent