A new analysis of ancient genomes suggests that different branches of the human family tree interbred multiple times, and that some humans carry DNA from an archaic, unknown ancestor. In some cases the contract of the lease may allow the lessee to sell or devise the land, but the land still reverts to the owner at the end of the specified period. A concentration of mass so dense that nothing — not even light — can escape its gravitational pull once swallowed up. Archaic Astronomy First-time users please read the Index Page thoroughly for understanding. A distinctive pattern of stars used informally to organize a part of the sky. Special light-pollution filters can be used with your telescope to improve the visibility of celestial objects. 2 : a device used in early modern astronomy for calculating positions of bodies. Astrology definition is - the divination of the supposed influences of the stars and planets on human affairs and terrestrial events by their positions and aspects. Pages 51-62. Any prominent star pattern that isn’t a whole constellation, such as the Northern Cross or the Big Dipper. Zenith satellite-planet definition: Noun (plural satellite planets) 1. A measure of the atmosphere’s clarity — how dark the sky is at night and how blue it is during the day. Barlow Lens Field of View The celestial equivalent of longitude, denoting how far (in 15°-wide “hours”) an object lies east of the Sun’s location during the March equinox. 1723, John Harris, âPlanetsâ, in Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences: The Motions of the Å¿ix Primary Planets round the Sun is So adjuÅ¿ted, that the Square of the Times of their peroidical [ sic] â¦ Generally, the lower the magnification, the wider the field of view. Star Party In comparison, a nova is a star that explosively sheds its outer layers without destroying itself. Pages 3-14. Whether you're choosing a telescope, deep in the pages of Sky & Telescope, or planning your trip to the next big celestial event, the astronomy glossary below will get you up-to-speed on the essentials. Many stars are multiples (doubles, triples, or more) gravitationally bound together. acidum salis: hydrochloric acid (HCl, marine acid, muriatic acid, spirit of salt); literally "acid of salt".. ad siccum: to dryness, as in evaporation to dryness.. aer fixus: fixed air. Saber's beads A broken arc of illuminations seen at the limb of very young or very old lunar crescents. A few venture closer to the Sun and cross Earth’s orbit. Also called the Lenakaeia Supercluster, Local Supercluster, or Local SCI. The eyes’ transition to night vision, in order to see faint objects. Sunlight reflected by Earth that makes the otherwise dark part of the Moon glow faintly. This second edition has been fully updated and expanded, and is double the size of the first, with hundreds more archaic medical terms included. The material below is an early beginning in interpreting the stones and thus is still quite a bit speculative, According to one definition, Homo sapiens is a single species comprising several subspecies that include the archaics and modern humans. Mount Most people chose this as the best definition of dreyer: (astronomy, archaic) A Dr... See the dictionary meaning, pronunciation, and sentence examples. Also called critical velocity or critical rotation. aes cyprium.Cyprian brass or copper. Because of this absorbance of words, and the natural evolution of languages, we have lost from daily use many words as new ones take their place. Reiche, Harald A. T. Abstract. The Moon waxes, growing more illuminated, between its new and full phases, and wanes, becoming less illuminated, between its full and new phases. Contents: Introduction 1. He was also a writer on archaic religion, mythology, and astronomy. Archaic Astronomy and the World-Picture of a Flat Earth. Magnitude In this book, Sir Norman Lockyer, one of the great astronomers of the past generation, applies his advanced knowledge of astronomy to certain problems of the archaeology of his day. Why is a meteor not a meteorite? A unit of length refers to any arbitrarily chosen and accepted reference standard for measurement of length. Also called the normalized polar moment of inertia. The evidence suggests that there existed during earlier prehistory an archaic form of astronomy that included such components as simple natural calendars, more complex ‘palaeoalmanacs’, and the knowledge of certain asterisms. List of definitions of terms and concepts commonly used in the study of astronomy, "Glossary of (comet and) astronomical terms", https://en.wikipedia.org/w/index.php?title=Glossary_of_astronomy&oldid=993540388, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, For a list of words relating to astronomy, see the, This page was last edited on 11 December 2020, at 03:54. Fundamental » All languages » English » Terms by usage » Archaic terms. Focal Ratio (f/number) the term is Used today only in slang. Aether nitri, literally "nitric ether", was ethyl nitrate (C 2 H 5 NO 3) . A telescope’s magnification can be changed by using eyepieces with different focal lengths; shorter focal lengths yield higher magnifications. During the 4th century BCE, Plato and Aristotle agreed on a geocentric model but both thinkers did so based on mystical arguments: The stars and planets were carried around the earth on spheres, arranged in a concentric fashion. Tantra Vidya Based On Archaic Astronomy And Tantrik Texts Oscar Marcel Hinze MLBD by Mythri Thakkar. Nebula When Earth’s shadow falls upon the Moon, it causes a lunar eclipse. Meteor A small particle of rock or dust that burns away in the Earth's atmosphere. Twilight As the so-called new-age movement incorrectly uses the term, ley lines are said to be paths of energy running across the surface of the earth. (archaic, astronomy) A moon of a planet besides Earth; a secondary planet. A solid body orbiting the Sun that consists of metal and rock. The device that supports your telescope, allows it to point to different parts of the sky, and lets you track objects as Earth rotates. British Imperial units are still used for some purposes in the United Kingdom and some other countries. Most are only a few miles in diameter and are found between the orbits of Mars and Jupiter, too small and far away to be seen easily in a small telescope. Its plural is ephemerides (pronounced eff-uh-MEHR-ih-deez). Greek for “circle of animals.” It’s the set of constellations situated along the ecliptic in the sky, through which the Sun, Moon, and planets move. separate search terms with spaces; search for an exact phrase by surrounding it with double quotes; this field understands simple boolean logic . Also called an interstellar planet, nomad planet, orphan planet, and starless planet. Transit also refers to the instant when a celestial object crosses the meridian and thus is highest in the sky. Copyright ©2020 AAS Sky Publishing LLC. See more. The modern-day Messier catalog contains 109 objects. Astronomers directly calculate the distance to a nearby star by measuring its incredibly small positional changes (its parallax) as Earth orbits the Sun. Unit-Power Finder satellite galaxy scattered disc secular motion Any change in movement that happens over a very long time period. The Difference Between astronomy … Ducats are still produced by the Austrian mint. Compound Telescope A timetable with celestial coordinates that indicates where a planet, comet, or other body moving in relation to background stars will be in the sky. Meteor Shower An event where a large number of meteors enter the Earth's atmosphere from the same direction in space at nearly the same time. Pages 15-49. Star Phase Plato even described the universe as the Spindle of Necessity, attended by the Sirens and turned by the three Fates. Whosoever shall gaze hither may find a trove of long-lost words and betimes cry, "Heyday!" Also called the argument of perifocus or argument of pericenter. force a term to be included by preceding it with a + sign; force a term to be excluded by preceding it with a -sign. Named for their discoverers, comets sometimes make return visits after as little as a few years or as long as tens of thousands of years. Description ignore name meanings. Archaic Astronomical Instruments . The motivations for watching the sky may have been both practical and philosophical: a suitable ‘cosmovision’ would have helped give meaning to life. Collimation It’s usually the most exciting and detailed region of the Moon to view through a telescope. Encountering an archaic form might provoke distancing emotions of surprise, derision or awe in readers or spectators, but it might equally incite more intimate feelings of comfort, grief or longing" (28). MeridianThe imaginary north-south line that passes directly overhead (through the zenith). However, when it comes to the use of archaic words, modern Bible versions are the greatest culprits. Variable Star Astronomy is concerned with the study of celestial objects and phenomena that originate outside the atmosphere of Earth. Reflector Histogram Astronomy clubs often hold star parties to introduce stargazing to the public. The inner planets of Mercury and Venus are best seen when at maximum elongation, and thus are highest above the horizon before sunrise or after sunset. This term also describes the period when a planet or asteroid appears to backtrack in the sky because of the changing viewing perspective caused by Earth’s orbital motion. acidum salis: hydrochloric acid (HCl, marine acid, muriatic acid, spirit of salt); literally "acid of salt".. ad siccum: to dryness, as in evaporation to dryness.. aer fixus: fixed air. Magnification (power) Universal Time (UT)Also called Greenwich Mean Time, expressed in the 24-hour system. When the Moon or other body appears more than half, but not fully, illuminated (from gibbus, Latin for “hump”). A solar eclipse occurs when the Moon’s shadow falls upon Earth, which we see as the Moon blocking the Sun. The archaic astronomy of PSis quite unlike that of later siddhÄntasthat give the number of revolutions of different planets in a long period of years called kalpa14. A new analysis of ancient genomes suggests that different branches of the human family tree interbred multiple times, and that some humans carry DNA from an archaic, unknown ancestor. The measure of how much an orbit deviates from being circular. Noun. The point in the sky that’s directly overhead. Why is a meteor not a meteorite? This glossary of astronomy is a list of definitions of terms and concepts relevant to astronomy and cosmology, their sub-disciplines, and related fields. Limb The diameter of a telescope’s main lens or mirror — and the scope’s most important attribute. (astronomy, archaic) a Dreyer object â an entry/object in the New General Catalogue (NGC) compiled by J. L. E. Dreyer. When the Moon or a planet passes directly in front of a more distant planet or star. 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