Classification of Variable Stars
... The name of a variable star generally consists of one or two capital letters or a Greek letter, followed by a three letter constellation abbreviation. There are also variables with names such as V746 Oph and V1668 Cyg. These are stars in constellations for which all of the letter combinations have b ...
... The name of a variable star generally consists of one or two capital letters or a Greek letter, followed by a three letter constellation abbreviation. There are also variables with names such as V746 Oph and V1668 Cyg. These are stars in constellations for which all of the letter combinations have b ...
Galileo`s telescope - Exhibits on-line
... telescope makers. The little telescope examined by Giovambattista della Porta (c. 1535-1615) in Naples in the summer of 1609 had, for example, a tube made of tin. To build his first telescope, Galileo (1564-1642) used instead a lead tube, while that of the instrument he presented to the Venetian gov ...
... telescope makers. The little telescope examined by Giovambattista della Porta (c. 1535-1615) in Naples in the summer of 1609 had, for example, a tube made of tin. To build his first telescope, Galileo (1564-1642) used instead a lead tube, while that of the instrument he presented to the Venetian gov ...
IAA Annual Report 2014
... and IAA will participate in the construction of its instrumentation. PLATO, planned to launch in 2024, is to begin a completely new chapter in the exploration of extrasolar planets. During this year, IAA was active working on the instrumentation of several other ESA space missions (e.g. NOMAD onboar ...
... and IAA will participate in the construction of its instrumentation. PLATO, planned to launch in 2024, is to begin a completely new chapter in the exploration of extrasolar planets. During this year, IAA was active working on the instrumentation of several other ESA space missions (e.g. NOMAD onboar ...
Stellarium User Guide
... scipting facility is Stellarium’s version of a “Presentation”, a feature that may be used to run an astronomical or other presentation for instruction or entertainment from within the Stellarium program. The original Stratoscript was quite limited in what it could do so a new Stellarium Scripting Sy ...
... scipting facility is Stellarium’s version of a “Presentation”, a feature that may be used to run an astronomical or other presentation for instruction or entertainment from within the Stellarium program. The original Stratoscript was quite limited in what it could do so a new Stellarium Scripting Sy ...
The universe of the coming ALMA revolution
... Millimeter-wavelength light is a “sweet spot” for tomorrow’s astronomy because… It’s what half the light is. In addition to the cosmic microwave background (a nearly uniform glow from every part in the sky), the universe emits most of its light in two broad “humps” of color. We’ve been studying the ...
... Millimeter-wavelength light is a “sweet spot” for tomorrow’s astronomy because… It’s what half the light is. In addition to the cosmic microwave background (a nearly uniform glow from every part in the sky), the universe emits most of its light in two broad “humps” of color. We’ve been studying the ...
WILLIAM HERSCHEL AND THE `GARNET` STARS: μ CEPHEI AND
... Abstract: Although William Herschel‘s ‗Garnet Star‘ (µ Cephei) is a prominent object, the story of the discovery of this famous red star is not well documented. Prior to and after Herschel, the identification of this star was the subject of confusion in various catalogues and atlases. The case is co ...
... Abstract: Although William Herschel‘s ‗Garnet Star‘ (µ Cephei) is a prominent object, the story of the discovery of this famous red star is not well documented. Prior to and after Herschel, the identification of this star was the subject of confusion in various catalogues and atlases. The case is co ...
GEK 1506 Heavenly Mathematics: Cultural Astronomy
... movement in a day, they observed its motion across the sky as it rises in the East, climbs to its highest point in the sky (due South in the Northern hemisphere and North in the Southern hemisphere) at the time called noon and sets in the West. Recognizing dawn, noon and dusk then gave people the br ...
... movement in a day, they observed its motion across the sky as it rises in the East, climbs to its highest point in the sky (due South in the Northern hemisphere and North in the Southern hemisphere) at the time called noon and sets in the West. Recognizing dawn, noon and dusk then gave people the br ...
Properties of White Dwarfs, Teacher Guide
... Some background: Sirius is a nearby star – only 9 light-years away. All stars in our Galaxy orbit the Galactic barycenter, so they are all moving. Astronomers detect and track the motion of stars relative to our Sun. There are two motions that can be measured: radial velocity (in the line of sight) ...
... Some background: Sirius is a nearby star – only 9 light-years away. All stars in our Galaxy orbit the Galactic barycenter, so they are all moving. Astronomers detect and track the motion of stars relative to our Sun. There are two motions that can be measured: radial velocity (in the line of sight) ...
Astronomy 113 Laboratory Manual - UW
... At first glance, the stars appear to be scattered at random in the sky. But it is the nature of humans to organize, and archeological records show that all civilizations have seen patterns in the stars, or constellations. The stars were thought to be in the realm of the gods, and often the constella ...
... At first glance, the stars appear to be scattered at random in the sky. But it is the nature of humans to organize, and archeological records show that all civilizations have seen patterns in the stars, or constellations. The stars were thought to be in the realm of the gods, and often the constella ...
PDF - ASSA
... globules, often with a young star located near the apex of the globule. A new study of the region, A Survey of Irradiated Pillars, Globules, and Jets in the Carina Nebula [ http:// arxiv.org/abs/1502.03798 ], was published in February, containing a beautiful gallery of images and a detailed guide to ...
... globules, often with a young star located near the apex of the globule. A new study of the region, A Survey of Irradiated Pillars, Globules, and Jets in the Carina Nebula [ http:// arxiv.org/abs/1502.03798 ], was published in February, containing a beautiful gallery of images and a detailed guide to ...
JENAM-2011 Book of abstracts
... the discovery of the Hubble law and of the emergence of General Relativity allowed Cosmology to become a scientific domain, and later Extragalactic Astronomy became a part of Cosmology. Incredible progress has been achieved thanks to the development of giant or dedicated telescopes, new detectors, sp ...
... the discovery of the Hubble law and of the emergence of General Relativity allowed Cosmology to become a scientific domain, and later Extragalactic Astronomy became a part of Cosmology. Incredible progress has been achieved thanks to the development of giant or dedicated telescopes, new detectors, sp ...
A Brief Overview of the History of Western Astrology
... could be a threat to the emperor. The major astrological figure of the Roman era was Julius Firmicus Maternus, an astrologer, lawyer and Christian. Firmicus lived in the 4th century AD and is notable for spanning the divide between Christian and pagan thought. His masterwork, the Mathesis, is a pra ...
... could be a threat to the emperor. The major astrological figure of the Roman era was Julius Firmicus Maternus, an astrologer, lawyer and Christian. Firmicus lived in the 4th century AD and is notable for spanning the divide between Christian and pagan thought. His masterwork, the Mathesis, is a pra ...
The ALMA Universe - ALMA Observatory
... are two, named Otto and Lore — are customdesigned for just this purpose. They weigh about 130 tons and are in charge of lifting the antennas from the assembly and testing site (the Operations Support Facility (OSF), located at an altitude of 2,900 meters) to their final destination on the plains of ...
... are two, named Otto and Lore — are customdesigned for just this purpose. They weigh about 130 tons and are in charge of lifting the antennas from the assembly and testing site (the Operations Support Facility (OSF), located at an altitude of 2,900 meters) to their final destination on the plains of ...
CONSTELLATION PERSEUS The constellation
... clouds. The constellation's brightest star is the yellow-white supergiant Alpha Persei (also called Mirfak or Mirphak), which shines at magnitude 1.79. It and many of the surrounding stars are members of an open cluster known as the Alpha Persei Cluster. The best-known star, however, is Algol (Beta ...
... clouds. The constellation's brightest star is the yellow-white supergiant Alpha Persei (also called Mirfak or Mirphak), which shines at magnitude 1.79. It and many of the surrounding stars are members of an open cluster known as the Alpha Persei Cluster. The best-known star, however, is Algol (Beta ...
The Rhythm of Time The evolution of the calendar
... celestial sphere measured from the first point of Aries North polar distance: complement of declination, angle between pole and the star Declination and right ascension for fixed stars do not change (except for effects of precession. . . ), those of the sun, moon and planets do as they move is the c ...
... celestial sphere measured from the first point of Aries North polar distance: complement of declination, angle between pole and the star Declination and right ascension for fixed stars do not change (except for effects of precession. . . ), those of the sun, moon and planets do as they move is the c ...
Orion the Hunter
... Hunter. Its brightest stars form one of the best known celestial shapes, which is visible even from cities. The plane of the Milky Way clips the northeast corner of the constellation and manifests itself as a featureless, hazy band through the neighboring constellations of Gemini and Monoceros. Or ...
... Hunter. Its brightest stars form one of the best known celestial shapes, which is visible even from cities. The plane of the Milky Way clips the northeast corner of the constellation and manifests itself as a featureless, hazy band through the neighboring constellations of Gemini and Monoceros. Or ...
Instruction Manual #11007 / #11008 / #11009 ®
... CPC Computerized mount with its new EdgeHD optical system. The CPC series uses GPS (Global Positioning System) technology to take the guesswork and effort out of aligning and finding celestial objects in the sky. Simple and easy to use, the CPC with its SkyAlign sky modeling system, is up and runnin ...
... CPC Computerized mount with its new EdgeHD optical system. The CPC series uses GPS (Global Positioning System) technology to take the guesswork and effort out of aligning and finding celestial objects in the sky. Simple and easy to use, the CPC with its SkyAlign sky modeling system, is up and runnin ...
Sample pages 1 PDF
... So what can you actually see? A 200-mm SCT fitted with a 32-mm Plössl delivers a field of view of about 50 arcminutes (or put another way, 5/6 of a degree). This is enough to show the core of the Andromeda Galaxy, which should be visible as a fairly bright, rather large elliptical blur. It looks lik ...
... So what can you actually see? A 200-mm SCT fitted with a 32-mm Plössl delivers a field of view of about 50 arcminutes (or put another way, 5/6 of a degree). This is enough to show the core of the Andromeda Galaxy, which should be visible as a fairly bright, rather large elliptical blur. It looks lik ...
The Project Gutenberg eBook #31344: Mathematical Geography
... in the upper grades of the elementary school. The subject has not been presented from the point of view of a little child, but an attempt has been made to keep its scope within the attainments of a student in a normal school, academy, or high school. If a very short course in mathematical geography ...
... in the upper grades of the elementary school. The subject has not been presented from the point of view of a little child, but an attempt has been made to keep its scope within the attainments of a student in a normal school, academy, or high school. If a very short course in mathematical geography ...
ASTR 1010 - Sommers-Bausch Observatory
... will give you organizational details and information about grading at the first lab session. The lab exercises do not exactly follow the lectures or the textbook. The emphasis of most of these labs is on how we know what we know; thus we spend more time making and interpreting observations. Modern a ...
... will give you organizational details and information about grading at the first lab session. The lab exercises do not exactly follow the lectures or the textbook. The emphasis of most of these labs is on how we know what we know; thus we spend more time making and interpreting observations. Modern a ...
The Nature of the Stars
... several thousand stars, each appearing as a bright pinpoint of light. With a pair of binoculars, you can see some 10,000 other, fainter stars; with a 15-cm (6-in.) telescope, the total rises to more than 2 million. Astronomers now know that there are in excess of 100 billion (1011) stars in our Milk ...
... several thousand stars, each appearing as a bright pinpoint of light. With a pair of binoculars, you can see some 10,000 other, fainter stars; with a 15-cm (6-in.) telescope, the total rises to more than 2 million. Astronomers now know that there are in excess of 100 billion (1011) stars in our Milk ...
Stars & Galaxies - newmanlib.ibri.org
... • The constellations are used today in astronomy to help observers find their way around in the night sky. • They have been used by travellers for direction and by farmers for when to plant crops. • The constellations have been & are still being used by astrologers for fortune-telling. • Some Christ ...
... • The constellations are used today in astronomy to help observers find their way around in the night sky. • They have been used by travellers for direction and by farmers for when to plant crops. • The constellations have been & are still being used by astrologers for fortune-telling. • Some Christ ...
Chinese astronomy
Astronomy in China has a very long history, with historians indicating that the Chinese were the most persistent and accurate observers of celestial phenomena anywhere in the world before the Arabs. Star names later categorized in the twenty-eight mansions have been found on oracle bones unearthed at Anyang, dating back to the middle Shang Dynasty (Chinese Bronze Age), and the mansion (xiù:宿) system's nucleus seems to have taken shape by the time of the ruler Wu Ding (1339-1281 BC).Detailed records of astronomical observations began during the Warring States period (fourth century BC) and flourished from the Han period onward. Chinese astronomy was equatorial, centered as it was on close observation of circumpolar stars, and was based on different principles from those prevailing in traditional Western astronomy, where heliacal risings and settings of zodiac constellations formed the basic ecliptic framework.Some elements of Indian astronomy reached China with the expansion of Buddhism after the Eastern Han Dynasty (25–220 AD), but the most detailed incorporation of Indian astronomical thought occurred during the Tang Dynasty (618-907), when numerous Indian astronomers took up residence in the Chinese capital, and Chinese scholars, such as the great Tantric Buddhist monk and mathematician Yi Xing, mastered its system. Islamic astronomers collaborated closely with their Chinese colleagues during the Yuan Dynasty, and, after a period of relative decline during the Ming Dynasty, astronomy was revitalized under the stimulus of Western cosmology and technology after the Jesuits established their missions. The telescope was introduced in the seventeenth century. In 1669, the Peking observatory was completely redesigned and refitted under the direction of Ferdinand Verbiest. Today, China continues to be active in astronomy, with many observatories and its own space program.