Mercury venus and jupiter in March 2014
... Many a times we see Bright Venus in day light as well. But hardly we have seen Jupiter in day Light. But since last week we been observing Jupiter in a day light just before Sun Sets. Best time to locate those planets in day Light is when they are close to the Moon, so we can focus in that location ...
... Many a times we see Bright Venus in day light as well. But hardly we have seen Jupiter in day Light. But since last week we been observing Jupiter in a day light just before Sun Sets. Best time to locate those planets in day Light is when they are close to the Moon, so we can focus in that location ...
Luminosity
... These two stars have about the same luminosity— which one appears brighter? A. Alpha Centauri B. The Sun ...
... These two stars have about the same luminosity— which one appears brighter? A. Alpha Centauri B. The Sun ...
MS Word version
... The following sequence of directions are steps an instructor might choose to follow in demonstrating the Eclipsing Binary Simulator in a classroom situation. We provide these suggestions with appropriate questions (shown in bold italics) to pose to the class as an aid in promoting interactivity. We ...
... The following sequence of directions are steps an instructor might choose to follow in demonstrating the Eclipsing Binary Simulator in a classroom situation. We provide these suggestions with appropriate questions (shown in bold italics) to pose to the class as an aid in promoting interactivity. We ...
lect3 — 1 Measuring stars: What can be measured?
... Hence by measuring the apparent magnitude m, and somehow knowing the absolute magnitude M (i.e. the true luminosity), one can infer the distance D (in pc). H-R diagram distance: We discussed the H-R diagram last time as a relation between temperature and luminosity. In observational terms, it is act ...
... Hence by measuring the apparent magnitude m, and somehow knowing the absolute magnitude M (i.e. the true luminosity), one can infer the distance D (in pc). H-R diagram distance: We discussed the H-R diagram last time as a relation between temperature and luminosity. In observational terms, it is act ...
The Great Nebula in Orion
... Hubble’s high resolution enables us to separate the light of the closely packed stars in Orion. Its high stability and lightmeasuring accuracy overcome the challenge of the non-uniform brightness of nebula. In the Hubble images, we can precisely compare the stellar signals through many filters. We c ...
... Hubble’s high resolution enables us to separate the light of the closely packed stars in Orion. Its high stability and lightmeasuring accuracy overcome the challenge of the non-uniform brightness of nebula. In the Hubble images, we can precisely compare the stellar signals through many filters. We c ...
32Brightness
... • Absorption from cooler gases in front of continuum source, where discrete colors are absorbed by atoms – From emission and absorption lines, get composition of objects and also their temperature ...
... • Absorption from cooler gases in front of continuum source, where discrete colors are absorbed by atoms – From emission and absorption lines, get composition of objects and also their temperature ...
Slide 1
... diagram, a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. ...
... diagram, a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. ...
17_LectureOutline
... diagram, a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. ...
... diagram, a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. ...
A billion pixels, a billion stars
... away from their origins. During this spatial diffusion, their velocities remained clustered. Hence, if we know their distances and velocities very precisely, we can in effect “turn the clock back” and determine how the diffusion process happened. Many stars in the disc – Gaia will tell us how many – ...
... away from their origins. During this spatial diffusion, their velocities remained clustered. Hence, if we know their distances and velocities very precisely, we can in effect “turn the clock back” and determine how the diffusion process happened. Many stars in the disc – Gaia will tell us how many – ...
Gökküre
... • Objects on Earth (everything below the sphere of the Moon) are a mixture of 4 elements: Earth, Water, Air and Fire. Such objects are subject to change, decay and/or death and are defected. • Celestial Objects are made from a fifth element (Ether). Such objects are defectless/perfect, and eternal. ...
... • Objects on Earth (everything below the sphere of the Moon) are a mixture of 4 elements: Earth, Water, Air and Fire. Such objects are subject to change, decay and/or death and are defected. • Celestial Objects are made from a fifth element (Ether). Such objects are defectless/perfect, and eternal. ...
the iconography of ancient astronomy
... (Ill.32 - see also the Seleucid version in Ill.17) on whose tail tip in the actual sky Corvus the Crow (paranatellon to Virgo) perches (Ill.16): in icon A the bird is fitted in at the top left-hand corner. Thus Mithra sufficiently completes the solstitial Leo-Aquarius axis to indicate the extremes o ...
... (Ill.32 - see also the Seleucid version in Ill.17) on whose tail tip in the actual sky Corvus the Crow (paranatellon to Virgo) perches (Ill.16): in icon A the bird is fitted in at the top left-hand corner. Thus Mithra sufficiently completes the solstitial Leo-Aquarius axis to indicate the extremes o ...
Time From the Perspective of a Particle Physicist
... (Neon, Silicon, Sulpher, etc) • end up with core of Iron nuclei plus 26 unbound “free” electrons for every Fe • electrons are “degenerate” as so close together provide most of the pressure resisting gravity • enormous stress. electrons “give way” leaves “hole” size of Earth in center of star ...
... (Neon, Silicon, Sulpher, etc) • end up with core of Iron nuclei plus 26 unbound “free” electrons for every Fe • electrons are “degenerate” as so close together provide most of the pressure resisting gravity • enormous stress. electrons “give way” leaves “hole” size of Earth in center of star ...
Stellar Evolution
... Lifetimes (p.111) • Work with a partner! • Read the instructions and questions carefully. • Discuss the concepts and your answers with one another. Take time to understand it now!!!! • Come to a consensus answer you both agree on. • If you get stuck or are not sure of your answer, ask ...
... Lifetimes (p.111) • Work with a partner! • Read the instructions and questions carefully. • Discuss the concepts and your answers with one another. Take time to understand it now!!!! • Come to a consensus answer you both agree on. • If you get stuck or are not sure of your answer, ask ...
Exploration of the Milky Way and Nearby galaxies
... Frebel et al. showed that the overall abundance pattern mirrors that seen in lowmetallicity halo stars, including alpha-elements. Such chemical similarity indicates that the systems destroyed to form the halo billions of years ago were not fundamentally different from the progenitors of present-day ...
... Frebel et al. showed that the overall abundance pattern mirrors that seen in lowmetallicity halo stars, including alpha-elements. Such chemical similarity indicates that the systems destroyed to form the halo billions of years ago were not fundamentally different from the progenitors of present-day ...
Oct5
... * Most carbon, oxygen comes from low-mass red giant winds * Most of the heavy elements come from supernovae * New stars form out of interstellar gas which has been enriched with elements by red giant winds, planetary nebulae and supernovae. * Older stars on the main sequence have relatively fewer at ...
... * Most carbon, oxygen comes from low-mass red giant winds * Most of the heavy elements come from supernovae * New stars form out of interstellar gas which has been enriched with elements by red giant winds, planetary nebulae and supernovae. * Older stars on the main sequence have relatively fewer at ...
Planets Unit Plan
... This book is part of the Magic School Bus series with the familiar characters of Ms. Frizzle, Arnold and the whole gang. It is a great resource for an introduction to the solar system as it goes through all of the planets and has funny commentary throughout the book. Somewhere in the Universe This b ...
... This book is part of the Magic School Bus series with the familiar characters of Ms. Frizzle, Arnold and the whole gang. It is a great resource for an introduction to the solar system as it goes through all of the planets and has funny commentary throughout the book. Somewhere in the Universe This b ...
AST1100 Lecture Notes
... zero everywhere inside this shell. Thus, simply by a set of Doppler measurements of orbital velocities at different distances r in the galaxy we are able to obtain a map of the matter distribution in terms of the density profile ρ(r). Recall that observations have shown the rotation curve v(r) to be ...
... zero everywhere inside this shell. Thus, simply by a set of Doppler measurements of orbital velocities at different distances r in the galaxy we are able to obtain a map of the matter distribution in terms of the density profile ρ(r). Recall that observations have shown the rotation curve v(r) to be ...
Galaxy Powerpoint Notes
... Inside of galaxies : Inside of galaxies Ever wondered what was inside a galaxy? Well look no farther, because you’re in one! Unfortunately, galaxies are massive, and we can’t see as much as we wish, and that is why with the assistance of telescopes, astronomers have been able to identify certain thi ...
... Inside of galaxies : Inside of galaxies Ever wondered what was inside a galaxy? Well look no farther, because you’re in one! Unfortunately, galaxies are massive, and we can’t see as much as we wish, and that is why with the assistance of telescopes, astronomers have been able to identify certain thi ...
Double Stars Discovered by IOTA Predicted Occultations July, 2010
... Both components of the double star were occulted as observed in Arizona, USA. As observed in Japan, one component of the double star was occulted by three observers and 9 observers recorded miss observations. The light curve appears to be a BBAA event. A double asteroid was initially considered, but ...
... Both components of the double star were occulted as observed in Arizona, USA. As observed in Japan, one component of the double star was occulted by three observers and 9 observers recorded miss observations. The light curve appears to be a BBAA event. A double asteroid was initially considered, but ...
Ursa Major
Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.