STARLAB
... Tips On Using STARLAB by Joyce Kloncz The first time you use STARLAB is an exciting event! If you are using it as a classroom teacher or as a planetarium director, you’ll want to make sure you are prepared before you begin. Here are some ideas that have been used in the past for a successful STARLA ...
... Tips On Using STARLAB by Joyce Kloncz The first time you use STARLAB is an exciting event! If you are using it as a classroom teacher or as a planetarium director, you’ll want to make sure you are prepared before you begin. Here are some ideas that have been used in the past for a successful STARLA ...
Understanding Variable Stars - Central Florida Astronomical Society
... Variable stars are those that change brightness. Their variability may be due to geometric processes such as rotation, or eclipse by a companion star, or physical processes such as vibration, flares, or cataclysmic explosions. In each case, variable stars provide unique information about the properti ...
... Variable stars are those that change brightness. Their variability may be due to geometric processes such as rotation, or eclipse by a companion star, or physical processes such as vibration, flares, or cataclysmic explosions. In each case, variable stars provide unique information about the properti ...
PhD thesis
... 1 Massive star formation 1.1 Massive star formation . . . . . . . . . . . . . . . . . . . . . . 1.1.1 Observational massive star-forming features . . . . . . 1.2 Ionized gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2.1 Thermal emission from ionized gas . . . . . . . . . . . . 1.2. ...
... 1 Massive star formation 1.1 Massive star formation . . . . . . . . . . . . . . . . . . . . . . 1.1.1 Observational massive star-forming features . . . . . . 1.2 Ionized gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2.1 Thermal emission from ionized gas . . . . . . . . . . . . 1.2. ...
1997 Apparition of Comet Hale-Bopp - HIGP
... Solar System, and may provide clues to the physical and chemical conditions within the nebula out of which our Solar System formed. Comets are potentially our only direct samples of this early epoch in our history, and like the archaeologist who uses relics to piece together the chronology and struc ...
... Solar System, and may provide clues to the physical and chemical conditions within the nebula out of which our Solar System formed. Comets are potentially our only direct samples of this early epoch in our history, and like the archaeologist who uses relics to piece together the chronology and struc ...
Me and My Shadow - Making the Sun-Earth - PS
... Although horizontal sundials are more familiar to most people (due to the fact that horizontal sundials are by far the most common type of sundial), experience has shown that an equatorial sundial is better suited for making the connection between the Earth's rotation and solar time-keeping (see Are ...
... Although horizontal sundials are more familiar to most people (due to the fact that horizontal sundials are by far the most common type of sundial), experience has shown that an equatorial sundial is better suited for making the connection between the Earth's rotation and solar time-keeping (see Are ...
Euler: Genius Blind Astronomer Mathematician
... career, Euler created analytical mechanics, the refined and highly mathematical form of classical Newtonian mechanics2 that describes the motion of macroscopic objects, including astronomical bodies, such as planets, stars, and galaxies. The new tools Euler developed served to solve some of the most ...
... career, Euler created analytical mechanics, the refined and highly mathematical form of classical Newtonian mechanics2 that describes the motion of macroscopic objects, including astronomical bodies, such as planets, stars, and galaxies. The new tools Euler developed served to solve some of the most ...
Picturing Objects in the Making: Scheiner, Galileo and the Discovery
... presented through images. Some of them (like the pictures of the lunar surface) seem quite realistic in traditional pictorial terms and testify to Galileo's training in the arts of d i ~ e g n o . ~ Hensedcontemporary chiaroscuro techniques for his drawings of the Moon, which were then transferred t ...
... presented through images. Some of them (like the pictures of the lunar surface) seem quite realistic in traditional pictorial terms and testify to Galileo's training in the arts of d i ~ e g n o . ~ Hensedcontemporary chiaroscuro techniques for his drawings of the Moon, which were then transferred t ...
THE DEMOGRAPHICS OF LONG-PERIOD COMETS ABSTRACT
... a conservative upper limit: most of these lost objects were most likely either not real to begin with or fastmoving objects only visible for a short window of time. Secondly, some comets might have been inactive at these large heliocentric distances, and hence classified as minor planets. The minor p ...
... a conservative upper limit: most of these lost objects were most likely either not real to begin with or fastmoving objects only visible for a short window of time. Secondly, some comets might have been inactive at these large heliocentric distances, and hence classified as minor planets. The minor p ...
SOFA Astrometry Tools
... A star catalog can be constructed using any coordinate system that is fixed relative to the cosmological background: the choices of pole and longitude zero-point are essentially arbitrary. For some purposes galactic coordinates are convenient, while for some classical applications ecliptic coordinat ...
... A star catalog can be constructed using any coordinate system that is fixed relative to the cosmological background: the choices of pole and longitude zero-point are essentially arbitrary. For some purposes galactic coordinates are convenient, while for some classical applications ecliptic coordinat ...
Lecture 2
... Completing the z~3 Picture • Using molecular line emission at z=3, could probe cool gas • “low-excitation lines will map out a larger fraction of the ISM in these galaxies and…study in detail the spacially resolved kinematic structure of most of the gas…which resides in the cold phase” (Carilli & B ...
... Completing the z~3 Picture • Using molecular line emission at z=3, could probe cool gas • “low-excitation lines will map out a larger fraction of the ISM in these galaxies and…study in detail the spacially resolved kinematic structure of most of the gas…which resides in the cold phase” (Carilli & B ...
General NG Celestial Questions
... A. rapid changes in GHA and declination introduce errors into the calculations B. lack of a well defined limb during certain phases and positions in the sky C. approximations used in the solution caused by the variable horizontal parallax D. augmentation effect caused by the relatively short distanc ...
... A. rapid changes in GHA and declination introduce errors into the calculations B. lack of a well defined limb during certain phases and positions in the sky C. approximations used in the solution caused by the variable horizontal parallax D. augmentation effect caused by the relatively short distanc ...
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 ...
Worlds Beyond The Poles
... South Pole “points” of theory. It is now established that we may at once journey into celestial land areas by customary movement on the horizontal from beyond the Pole points. It is also known that the flight course from this Earth to connecting land area of the universe about us which appears “up,” ...
... South Pole “points” of theory. It is now established that we may at once journey into celestial land areas by customary movement on the horizontal from beyond the Pole points. It is also known that the flight course from this Earth to connecting land area of the universe about us which appears “up,” ...
Search For Gas Giants Around Late-m Dwarfs - STARS
... monitored these stars over four epochs in 2007. In addition to the measurement of relative radial velocity we established physical properties of these stars. The physical properties of M dwarfs we determined included the identification of neutral atomic lines, the measurement of pseudo-equivalent wi ...
... monitored these stars over four epochs in 2007. In addition to the measurement of relative radial velocity we established physical properties of these stars. The physical properties of M dwarfs we determined included the identification of neutral atomic lines, the measurement of pseudo-equivalent wi ...
The CCD Photometric Calibration Cookbook
... photographs and latterly CCD images. The techniques for calibrating CCD images are now well established. However, they must be applied carefully if accurate results are to be obtained. In essence, astronomical photometry is concerned with measuring the brightness of celestial objects. CCD (Charge-Co ...
... photographs and latterly CCD images. The techniques for calibrating CCD images are now well established. However, they must be applied carefully if accurate results are to be obtained. In essence, astronomical photometry is concerned with measuring the brightness of celestial objects. CCD (Charge-Co ...
Full text - FNWI (Science) Education Service Centre
... becoming gravitationally bound to our Oort Cloud (Sekanina, 1975). These comets encourage the idea of a comet group populating the interstellar medium. 2.3 Interstellar comets The group of comets that holds the main focus of this research is the group of dynamical comets on hyperbolic orbits. These ...
... becoming gravitationally bound to our Oort Cloud (Sekanina, 1975). These comets encourage the idea of a comet group populating the interstellar medium. 2.3 Interstellar comets The group of comets that holds the main focus of this research is the group of dynamical comets on hyperbolic orbits. These ...
Giant star seismology
... Asteroseismology – the study of global properties of stars and their internal structure through their global intrinsic oscillations – is already more than a century old. An early remarkable result was obtained for Cepheids revealing the period-luminosity relation (Leavitt and Pickering, 1912), which ...
... Asteroseismology – the study of global properties of stars and their internal structure through their global intrinsic oscillations – is already more than a century old. An early remarkable result was obtained for Cepheids revealing the period-luminosity relation (Leavitt and Pickering, 1912), which ...
Science Case for the Chinese Participation of TMT
... reveal that the Universe is dominated by dark matter and dark energy. The nature of these two dark components is the most fundamental question in (astro-)physics today. The discovery of more than 400 extrasolar planet systems indicates that our solar system may be the exception rather than the norm; ...
... reveal that the Universe is dominated by dark matter and dark energy. The nature of these two dark components is the most fundamental question in (astro-)physics today. The discovery of more than 400 extrasolar planet systems indicates that our solar system may be the exception rather than the norm; ...
Supernova - Wikipedia, the free encyclopedia
... Swiss astrophysicist and astronomer Fritz Zwicky,[4][5] and was first used in print in 1926.[6] Several types of supernovae exist. Types I and II can be triggered in one of two ways, either turning off or suddenly turning on the production of energy through nuclear fusion. After the core of an aging ...
... Swiss astrophysicist and astronomer Fritz Zwicky,[4][5] and was first used in print in 1926.[6] Several types of supernovae exist. Types I and II can be triggered in one of two ways, either turning off or suddenly turning on the production of energy through nuclear fusion. After the core of an aging ...