Download or read book Design Development and Analysis of Lunar Crescent Visibility Criterion With Python written by Muhamad Syazwan Bin Faid and published by CRC Press. This book was released on 2024-12-05 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The analysis of lunar crescent visibility criterion is vital in providing a comparative insight for predicting the visibility and suitability for Hijri calendar determination. While there have been previous attempts to measure the performance of lunar crescent visibility criterion, these attempts only apply to a singular analysis and not a comparative examination. Design, Development and Analysis of Lunar Crescent Visibility Criterion with Python explores the development of an analysis tool for lunar crescent visibility criterion using an integrated lunar crescent visibility database. The analysis tool, called HilalPy and HilalObs, was developed in the form of a Python library, so that it can be integrated into other software and webpages to enable deployment into various operating systems. This book will provide useful insights for the future development of lunar crescent visibility criterion, particularly for calendrical purposes. Key Features: ● Presents an analysis tool for lunar crescent visibility based on an integrated lunar crescent report database. ● Offers researchers and practitioners the capability to perform comparative analyses of the percentage of reliability in lunar crescent visibility criteria, thereby contributing to the construction of robust criteria for determining the Hijri calendar. ● Provides a comprehensive resource for researchers, students, policymakers, and practitioners involved in the determination of the Hijri calendar.

Download or read book The quarterly journal of science written by and published by . This book was released on 1868 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quarterly Journal of Science written by and published by . This book was released on 1868 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Strategic Role of Perigean Spring Tides written by Fergus J. Wood and published by . This book was released on 1978 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Hobbit and Tolkien s Mythology written by Bradford Lee Eden and published by McFarland. This book was released on 2014-10-27 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the 2013 "Celebrating The Hobbit" conference at Valparaiso University--marking the 75th anniversary of the book's publication and the first installment of Peter Jackson's Hobbit movies--two plenary papers were presented: "Anchoring the Myth: The Impact of The Hobbit on Tolkien's Legendarium" by John D. Rateliff provided numerous examples of The Hobbit's influence on Tolkien's legendarium; and "Tolkien's French Connections" by Verlyn Flieger discussed French influences on the development of Bilbo Baggins and his adventures. In discussions with the plenary speakers and other presenters, it became apparent that a book focusing on how The Hobbit influenced the subsequent development of Tolkien's legendarium was sorely needed. This collection of 15 previously unpublished essays fills that need. With Rateliff's and Flieger's papers included, the book presents two chapters on the Evolution of the Dwarven Race, two chapters on Durin's Day examining the Dwarven lunar calendar, and 11 chapters on themes exploring various topics on influences and revisions between The Hobbit and Tolkien's legendarium.

Download or read book Memoirs of the Royal Astronomical Society written by Royal Astronomical Society and published by . This book was released on 1843 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Visual Lunar and Planetary Astronomy written by Paul G. Abel and published by Springer Science & Business Media. This book was released on 2013-08-21 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Memoirs of the Astronomical Society of London written by Royal Astronomical Society and published by . This book was released on 1843 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Notices of the Royal Astronomical Society written by and published by . This book was released on 1839 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Memoirs of the Royal Astronomical Society written by and published by . This book was released on 1846 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Memoirs of the Astronomical Society of London written by and published by . This book was released on 1846 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Notices of the Astronomical Society of London written by and published by . This book was released on 1845 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Haunted Observatory written by Richard Baum and published by Prometheus Books. This book was released on 2007-06-05 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: For many centuries observers of the night sky interpreted the moving planets and the surrounding starry realms in terms of concentric crystalline spheres, in the center of which hung the Earth -- the hub of creation. But with the discoveries of Galileo, Copernicus, Kepler, and Newton, astronomers were suddenly struck by a momentous truth: the solar system was neither small nor intimate, but extended an unfathomable distance toward countless even more distant stars. The endless possibilities of these astounding developments fired scientists'' imaginations, leading both to further discoveries and to flights of fancy. While newly discovered facts are important and interesting, the quaint curiosities and spectral "ghosts" that led scientists astray have a fascination of their own. This is the subject of astronomer Richard Baum in this elegant narrative about the mysteries and wonders of celestial exploration. The fabled "mountains of Venus," a "city in the moon," ghostly rings around Uranus and Neptune, bright inexplicable objects seen near the sun, and the truth behind Coleridge''s "Star dogged Moon" in his famous poem about the Ancient Mariner -- these are just some of the intriguing twists and turns that astronomers took while investigating our starry neighbors. Baum vividly conveys the romance of astronomy at a time when the vistas of outer space were a new frontier and astronomers, guided only by imagination and analogy, set forth on uncharted seas and were haunted for a lifetime by marvels both seen and imagined.

Download or read book Ancient Astronomical Observations and the Study of the Moon s Motion 1691 1757 written by John M. Steele and published by Springer Science & Business Media. This book was released on 2012-02-17 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of a gradual acceleration in the moon’s mean motion by Edmond Halley in the last decade of the seventeenth century led to a revival of interest in reports of astronomical observations from antiquity. These observations provided the only means to study the moon’s ‘secular acceleration’, as this newly-discovered acceleration became known. This book contains the first detailed study of the use of ancient and medieval astronomical observations in order to investigate the moon’s secular acceleration from its discovery by Halley to the establishment of the magnitude of the acceleration by Richard Dunthorne, Tobias Mayer and Jérôme Lalande in the 1740s and 1750s. Making extensive use of previously unstudied manuscripts, this work shows how different astronomers used the same small body of preserved ancient observations in different ways in their work on the secular acceleration. In addition, this work looks at the wider context of the study of the moon’s secular acceleration, including its use in debates of biblical chronology, whether the heavens were made up of æther, and the use of astronomy in determining geographical longitude. It also discusses wider issues of the perceptions and knowledge of ancient and medieval astronomy in the early-modern period. This book will be of interest to historians of astronomy, astronomers and historians of the ancient world.

Download or read book Popular Astronomy written by William Wallace Payne and published by . This book was released on 1895 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Popular Astronomy written by and published by . This book was released on 1895 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American Journal of Science written by and published by . This book was released on 1860 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: