[PDF] Mystery Of The Ashen Light Of Venus eBook

Author : John C. Barentine
Publisher :
Page : 0 pages
File Size : 16,76 MB
Release : 2021
Category :
ISBN : 9783030727161

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The "Ashen Light" of Venus-a ghostly emission of light from the night side of our nearest planetary neighbor-is among the last unsolved mysteries of astronomical history. In the four centuries since the phenomenon was first reported, highly reputable visual observers of Venus have recorded seeing the Ashen Light, while others have spent a lifetime searching for it without once being convinced that they ever saw it. Is the Ashen Light a trick of the eye? The result of a defective lens? A real scientific event? Occasional references to the Ashen Light are scattered across the literature, yet no work to date has synthesized these records. This book therefore digs deep into the history of the mystery and our latest attempts to understand it, sifting through the clues that might explain whether it is caused by physics, is conjured up by the eye or brain, or a combination of both. This baffling story will appeal to amateur astronomers, hobbyists, and lay readers interested in joining the debate about one of the most elusive observable phenomena ever recorded in the night sky.

Author : John C. Barentine
Publisher : Springer Nature
Page : 265 pages
File Size : 14,98 MB
Release : 2021-09-07
Category : Science
ISBN : 3030727157

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The “Ashen Light” of Venus—a ghostly emission of light from the night side of our nearest planetary neighbor—is among the last unsolved mysteries of astronomical history. In the four centuries since the phenomenon was first reported, highly reputable visual observers of Venus have recorded seeing the Ashen Light, while others have spent a lifetime searching for it without once being convinced that they ever saw it. Is the Ashen Light a trick of the eye? The result of a defective lens? A real scientific event? Occasional references to the Ashen Light are scattered across the literature, yet no work to date has synthesized these records. This book therefore digs deep into the history of the mystery and our latest attempts to understand it, sifting through the clues that might explain whether it is caused by physics, is conjured up by the eye or brain, or a combination of both. This baffling story will appeal to amateur astronomers, hobbyists, and lay readers interested in joining the debate about one of the most elusive observable phenomena ever recorded in the night sky.

Author : John C. Barentine
Publisher : Springer
Page : 0 pages
File Size : 24,28 MB
Release : 2021-09-08
Category : Science
ISBN : 9783030727147

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The “Ashen Light” of Venus—a ghostly emission of light from the night side of our nearest planetary neighbor—is among the last unsolved mysteries of astronomical history. In the four centuries since the phenomenon was first reported, highly reputable visual observers of Venus have recorded seeing the Ashen Light, while others have spent a lifetime searching for it without once being convinced that they ever saw it. Is the Ashen Light a trick of the eye? The result of a defective lens? A real scientific event? Occasional references to the Ashen Light are scattered across the literature, yet no work to date has synthesized these records. This book therefore digs deep into the history of the mystery and our latest attempts to understand it, sifting through the clues that might explain whether it is caused by physics, is conjured up by the eye or brain, or a combination of both. This baffling story will appeal to amateur astronomers, hobbyists, and lay readers interested in joining the debate about one of the most elusive observable phenomena ever recorded in the night sky.

Author : Joel S. Levine
Publisher :
Page : 0 pages
File Size : 10,50 MB
Release : 1969
Category :
ISBN :

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We have collected and analyzed 129 visual observations of the Ashen Light, the luminous glow on the dark side of Venus, made between 1954 and 1962. Spectroscopic and photometric studies attempting to detect dark side emission on Venus are reviewed and discussed in light of the visual occurrence of the glow. We have found a general increase in the geomagnetic index coinciding with the occurrence of the Ashen Light at times of inferior conjunction of Venus, which suggests that the Ashen Light is an auroral phenomena due to solar particle bombardment on the dark side of Venus. This possibility is explored in terms of the nature and characteristics of the visual Ashen Light observations and in terms of the recent Mariner V and Venera-4 data on the upper atmosphere of Venus.

Author : William Sheehan
Publisher : Reaktion Books
Page : 257 pages
File Size : 23,78 MB
Release : 2022-08-04
Category : Science
ISBN : 1789145864

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From the latest scientific advances to observation advice for amateur astronomers, a beautifully illustrated exploration of one of Earth’s closest neighbors. This book is a new, beautifully illustrated account of Venus, taking in the most recent research into this mysterious, inhospitable world. The book looks at the history of our observations of the planet, from early astronomy to future space missions, and seeks to shed light on many of the questions that remain unanswered, such as why Venus and the Earth—so similar in size and mass—evolved in such different directions, and how Venus acquired its dense carbon-dioxide atmosphere. Above all, Venus assesses whether life might have escaped from the oven-like temperatures at the surface and evolved to become perpetually airborne—in which case Venus may not be lifeless after all.

Author : Fred W. Price
Publisher : Cambridge University Press
Page : 452 pages
File Size : 42,29 MB
Release : 2000-10-26
Category : Nature
ISBN : 9780521789813

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This is an informative, up-to-date and well-illustrated guide to planetary observations for amateurs. After a brief description of the solar system and a chapter on the celestial sphere, readers are shown how to choose, test and use a telescope with various accessories and how to make observations and record results. For each planet and the asteroids, details are given of observational techniques, together with suggestions for how to make contributions of scientific value. From a general description and detailed observational history of each planet, observers can anticipate what they should see and assess their own observations. The chapter on planetary photography includes the revolutionary use of videography, charge coupled devices and video-assisted drawing. There are also chapters on making maps and planispheres and on photoelectric photometry.

Author : Paul G. Abel
Publisher : Springer Science & Business Media
Page : 233 pages
File Size : 47,20 MB
Release : 2013-08-21
Category : Science
ISBN : 1461470196

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With the advent of CCDs and webcams, the focus of amateur astronomy has to some extent shifted from science to art. Visual work in astronomy has a rich history. Today, imaging is now more prominent. However there is still much for the visual amateur astronomer to do, and visual work is still a valid component of amateur astronomy. Paul Abel has been addressing this issue by promoting visual astronomy wherever possible – at talks to astronomical societies, in articles for popular science magazines, and on BBC TV’s The Sky at Night. Visual Lunar and Planetary Astronomy is a comprehensive modern treatment of visual lunar and planetary astronomy, showing that even in the age of space telescopes and interplanetary probes it is still possible to contribute scientifically with no more than a moderately-priced commercially made astronomical telescope. It is believed that imaging and photography is somehow more objective and more accurate than the eye, and this has led to a peculiar “crisis of faith” in the human visual system and its amazing processing power. But by analyzing observations from the past, we can see how accurate visual astronomy really is! Measuring the rotational period of Mars and making accurate lunar charts for American astronauts were all done by eye. The book includes sections on how the human visual system works, how to view an object through an eyepiece, and how to record observations and keep a scientific notebook. The book also looks at how to make an astronomical, rather than an artistic, drawing. Finally, everything here will also be of interest to those imagers who wish to make their images more scientifically applicable by combining the methods and practices of visual astronomy with imaging.

Author : Blake Pierce
Publisher : Blake Pierce
Page : 3500 pages
File Size : 25,68 MB
Release : 2021-08-05
Category : Fiction
ISBN : 1094374784

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“A dynamic story line that grips from the first chapter and doesn't let go.” --Midwest Book Review, Diane Donovan (regarding Once Gone) “A masterpiece of thriller and mystery! The author did a magnificent job developing characters with a psychological side that is so well described that we feel inside their minds, follow their fears and cheer for their success. The plot is very intelligent and will keep you entertained throughout the book. Full of twists, this book will keep you awake until the turn of the last page.” --Books and Movie Reviews, Roberto Mattos (re Once Gone) A complete bundle of books 1-14 in the MACKENZIE WHITE MYSTERY series by USA Today bestselling author Blake Pierce. Once Gone (Book #1 in the series) (a free download) has received over 1,000 five star reviews. In the cornfields of Nebraska a woman is found murdered, strung up on a pole, the victim of a deranged killer. It doesn’t take long for the police to realize a serial killer is on the loose—and that his spree has just begun. Detective Mackenzie White, young, tough, smarter than the aging, chauvinistic men on her local force, finds herself called in grudgingly to help solve it. As much as the other officers hate to admit it, they need her young, brilliant mind, which has already helped crack cold cases that had left them stumped. Yet even for Mackenzie this new case proves an impossible riddle, something the likes of which she—and the local force—have ever seen. With the FBI called in, together, an intense manhunt ensues. Mackenzie, reeling from her own dark past, her failed relationships, and her undeniable attraction to the new FBI agent, finds herself battling her own demons as her hunt for the killer takes her to the darkest places of her mind. As she delves into the killer’s mind, obsessing over his twisted psychology, she finds that evil truly does exist. She only hopes it will not be too late to extricate herself from it, as her entire life collapses around her. As more bodies turn up dead and a frantic race against time ensues, there is no way out but to find him before he kills again. A dark thriller with heart-pounding suspense, the Mackenzie White Mystery Bundle comprises 14 books that will leave you enthralled and shocked, book after book, and leave you guessing, and turning pages, late into the night.

Author : Blake Pierce
Publisher : Blake Pierce
Page : 530 pages
File Size : 34,24 MB
Release : 2017-03-08
Category : Fiction
ISBN : 1640290079

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“A dynamic story line that grips from the first chapter and doesn't let go.” --Midwest Book Review, Diane Donovan (regarding Once Gone) From Blake Pierce, bestselling author of ONCE GONE (a #1 bestseller with over 900 five star reviews), comes a heart-pounding new mystery series. A bundle of books #3 (BEFORE HE COVETS) and #4 (BEFORE HE TAKES) in Blake Pierce’s Mackenzie White Mystery series! This bundle offers books three and four in one convenient file, with over 120,000 words of reading. In BEFORE HE COVETS (A Mackenzie White Mystery—Book 3), newly minted FBI agent Mackenzie White graduates the FBI Academy in Quantico only to find herself thrown into an urgent serial killer case. Women are turning up dead while camping in a remote national park in West Virginia. Yet the park is vast, and no connection can be found between them. At the same time, Mackenzie receives a call from Nebraska urging her to come home. After many years, a new clue has surfaced about her father’s murder. The case no longer cold, Mackenzie desperately needs to help solve it. But the FBI’s killer is ratcheting up, and there is no time for distraction as more women turn up missing in the psychological game of cat-and-mouse that follows. In BEFORE HE TAKES (A Mackenzie White Mystery—Book 4), Mackenzie White is ordered to take on a new and disturbing case. Women are going missing in rural Iowa, and a pattern is emerging. It is feared a serial killer is on a rampage, his pace increasing. Given her Midwestern roots, Mackenzie is chosen as the perfect fit. But Mackenzie is reluctant to return to the Midwest, this time to a starkly rural setting that reminds her too much of her upbringing, of her own ghosts in her closet. She also seeks her own father’s murderer, with darkness haunting her at every turn of her trip. Plunged deep into the world of farms, of silos, of slaughterhouses, of long stretches on empty highways, Mackenzie feels as if she’s falling back into the depths of her psyche, and into the nightmares she always feared to face. Dark psychological thrillers with heart-pounding suspense, the MACKENZIE WHITE MYSTERY series is a riveting new series—with a beloved new character—that will leave you turning pages late into the night. Book #5 in the Mackenzie White series is also now available!