On The Periodicity Of The Solar Spots
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On The Periodicity Of The Solar Spots
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Author : Daniel Kirkwood
language : en
Publisher:
Release Date : 1869
On The Periodicity Of The Solar Spots written by Daniel Kirkwood and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1869 with categories.
Earth And Sun
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Author : Ellsworth Huntington
language : en
Publisher:
Release Date : 1923
Earth And Sun written by Ellsworth Huntington and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1923 with Sunspots categories.
Sunspots And Their Effects
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Author : Harlan True Stetson
language : en
Publisher: Read Books Ltd
Release Date : 2013-05-31
Sunspots And Their Effects written by Harlan True Stetson and has been published by Read Books Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-05-31 with Science categories.
The near approach of another sunspot maximum with accompanying interest shown by the press and the general public gives the occasion for a book on sunspots. Very interesting book on the history and detection of sunspots and their possible effects on humankind. A must for anyone interested in how sunspots will affect the earth and human affairs and those that like to keep themselves informed of trends in science.
Solar Flare Occurrence As A Function Of Sunspot Size
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Author : Isadore Enger
language : en
Publisher:
Release Date : 1966
Solar Flare Occurrence As A Function Of Sunspot Size written by Isadore Enger and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Astronomy categories.
An objective technique has been developed for assessing the probability of occurrence of solar flares in a particular sunspot group, given only the sizes of the sunspot group on two consecutive days. The sunspot data cover the 10-year period 1955 to 1964 and have been published in the Greenwich Photoheliographic Results. The flare data were measured at Sacramento Peak, New Mexico. The flare and spot data were combined by a simple, objective technique which depends only on the size of the spot group and the relative positions of the spot group and flare. These results show the very marked dependence of flare occurrence on the size of the spot group and a significant, but very much smaller, dependence on the change in group size from one day to the next. (Author).
Memoirs
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Author :
language : en
Publisher:
Release Date : 1868
Memoirs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1868 with Science categories.
Memoirs Of The American Academy Of Arts And Sciences
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Author :
language : en
Publisher:
Release Date : 1868
Memoirs Of The American Academy Of Arts And Sciences written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1868 with Electronic journals categories.
The Sunspot Period
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Author : Henry Helm Clayton
language : en
Publisher:
Release Date : 1939
The Sunspot Period written by Henry Helm Clayton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1939 with Sunspots categories.
Search For Evidence Of A Clock Related To The Solar 154 Day Complex Of Periodicities
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-11
Search For Evidence Of A Clock Related To The Solar 154 Day Complex Of Periodicities written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-11 with categories.
Evidence that has recently been compiled (Bai and Sturrock 1991) indicates that the enigmatic 154-day periodicity in solar activity may be viewed as part of a complex of periodicities that are approximate multiples of 25.8 days, suggesting that the Sun contains a 'clock' with frequency in the range 440 to 463 nano Hz. The clock may comprise either an oscillator or a rotator, each of which may be either real or virtual. We have reconsidered a previous spectrum analysis of the Zurich sunspot-number sequence by Knight, Schatten, and Sturrock (1979) which revealed a sharp, persistent and significant periodicity with a period of 12.072 days, corresponding to a frequency of about 958.8 nano Hz. This periodicity may be regarded as the (second) upper sideband of the second harmonic (2nu(sub R) + 2nu(sub E)) of a fundamental frequency of 447.7 nano Hz that is clearly within the search band. In this expression, nu(sub R) is the sidereal frequency of the hypothetical rotator and nu(sub E) is the frequency (31.69 nano Hz) of the Earth in its orbital motion around the Sun. In analyzing sunspot area data derived from the Greenwich data set, and on noting that any frequency is defined only to within the Nyquist frequency, we find clear evidence not only for the upper sideband of the second harmonic, but also for the second harmonic (2nu(sub R)) and the lower sideband of the second harmonic (2nu(sub R) - 2nu(sub E)). There is no strong peak at the fundamental frequency in the Greenwich data, but there is in the Zurich sunspot data. The effect of a linear oscillator is, to the lowest order in the amplitude, the same as the combined effect of two rotators of opposite polarities. A rotator that has arbitrary orientation with respect to the ecliptic may influence the outer layers of the Sun and thereby modulate the occurrence of solar activity such as sunspots. By analyzing a simple model, we find that such a rotator would influence surface activity in such a way that the spectrum of a...
English Mechanic And Mirror Of Science
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Author :
language : en
Publisher:
Release Date : 1868
English Mechanic And Mirror Of Science written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1868 with categories.
English Mechanic And Mirror Of Science And Art
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Author :
language : en
Publisher:
Release Date : 1871
English Mechanic And Mirror Of Science And Art written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1871 with Technology categories.