Download Free Quarter Moon Astronomy Lunar Science Journal Book in PDF and EPUB Free Download. You can read online Quarter Moon Astronomy Lunar Science Journal and write the review.

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.
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.
A systematic survey and comparison of the work of 19th-century American and British women in scientific research, this book covers the two countries in which women of the period were most active in scientific work and examines all the fields in which they were engaged. The field-by-field examination brings out patterns and concentrations in women's research (in both countries) and allows a systematic comparison of the two national groups. Through this comparison, new insights are provided into how the national patterns developed and what they meant, in terms of both the process of women's entry into research and the contributions they made there. Ladies in the Laboratory? features a specialized bibliography of nineteenth century research journal publications by women, created from the London Royal Society's Catalogue of Scientific Papers, 1800-1900. In addition, 23 illustrations present in condensed form information about American and British women's scientific publications throughout the nineteenth century. This well-organized blend of individual life stories and quantitative information presents a great deal of new data and field-by-field analysis; its broad and methodical coverage will make it a basic work for everyone interested in the story of women's participation in nineteenth century science.
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.
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.