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Popular astronomy Volume 16

Carleton College Goodsell Observatory

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Description: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. 1908 ...and its spectrum was found to be "fairly continuous." On September 4, Mr. Maunder, at the Greenwich Observatory, found the spectrum "of precisely the same character as that of the nebula, i. e., it was perfectly continuous, no lines, either bright or dark, being visible, and the red end was wanting." Dr. Huggins, however, on September 9, thought he could see some bright lines in its spectrum. The star gradually faded away, and on February 7. 1886, was estimated as only 16th magnitude with the 26-inch refractor of the Washington Observatory. From a series of measures made by Professor Asaph Hall he found "no certain indications of parallax." Professor Seeliger has investigated the decrease in the light ol this star on the hypothesis that it was a cooling body which had been suddenly raised to an intense heat by the shock of a collision, and finds an agreement between theory and observation. Professor Auwers points out the similarity between this outburst and the new star of 1860, which appealed in the cluster 80 Messier, and thinks it very probable that both phenomena were due to physical changes in the nebuUe in which they occurred. The appearance of this temporary star in the Andromeda nebula seems to be further evidence against the hypothesis of the nebula being an "external universe." For, as I have shown above, our Sun placed at a distance of 150, 000 light years would shine only as a star of the 23rd magnitude, or over 15 magnitudes fainter than the temporary star. This would imply that the star shone with a brightness of over a million times that of the Sun, and would, of course, indicate a body of enormous size. But the rapid fading away of its light would, on the contrary imply a body of comparatively small si...We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Popular astronomy Volume 16. To get started finding Popular astronomy Volume 16, you are right to find our website which has a comprehensive collection of manuals listed.
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ISBN: 1231162392

Description: 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. 1908 ...and its spectrum was found to be "fairly continuous." On September 4, Mr. Maunder, at the Greenwich Observatory, found the spectrum "of precisely the same character as that of the nebula, i. e., it was perfectly continuous, no lines, either bright or dark, being visible, and the red end was wanting." Dr. Huggins, however, on September 9, thought he could see some bright lines in its spectrum. The star gradually faded away, and on February 7. 1886, was estimated as only 16th magnitude with the 26-inch refractor of the Washington Observatory. From a series of measures made by Professor Asaph Hall he found "no certain indications of parallax." Professor Seeliger has investigated the decrease in the light ol this star on the hypothesis that it was a cooling body which had been suddenly raised to an intense heat by the shock of a collision, and finds an agreement between theory and observation. Professor Auwers points out the similarity between this outburst and the new star of 1860, which appealed in the cluster 80 Messier, and thinks it very probable that both phenomena were due to physical changes in the nebuUe in which they occurred. The appearance of this temporary star in the Andromeda nebula seems to be further evidence against the hypothesis of the nebula being an "external universe." For, as I have shown above, our Sun placed at a distance of 150, 000 light years would shine only as a star of the 23rd magnitude, or over 15 magnitudes fainter than the temporary star. This would imply that the star shone with a brightness of over a million times that of the Sun, and would, of course, indicate a body of enormous size. But the rapid fading away of its light would, on the contrary imply a body of comparatively small si...We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Popular astronomy Volume 16. To get started finding Popular astronomy Volume 16, you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

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Popular astronomy Volume 16

Popular astronomy Volume 16

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