Lecture (Powerpoint)
... the mass of the Sun, or ~80 Jupiter masses) never ``turn on'' Central temperatures never get hot enough for nuclear burning to begin in earnest Nuclear burning is what powers the star through its life Star sits around as a brown dwarf – too big and hot to be a planet, too small and cold to be a real ...
... the mass of the Sun, or ~80 Jupiter masses) never ``turn on'' Central temperatures never get hot enough for nuclear burning to begin in earnest Nuclear burning is what powers the star through its life Star sits around as a brown dwarf – too big and hot to be a planet, too small and cold to be a real ...
meteor shower
... debris from a comet. • Meteor showers are known to occur when the Earth passes near the orbit of a comet and so are then associated with that comet. • We know that as a comet gets closer to the Sun, it heats up and sheds some dust and debris. • Any of the dust or debris that enters the Earth's atmos ...
... debris from a comet. • Meteor showers are known to occur when the Earth passes near the orbit of a comet and so are then associated with that comet. • We know that as a comet gets closer to the Sun, it heats up and sheds some dust and debris. • Any of the dust or debris that enters the Earth's atmos ...
stars and beyond - Math/Science Nucleus
... Comets may be leftovers from the formation of the Solar System. An asteroid is a mass of rock and minor amounts of frozen gas. Like comets, asteroids are probably leftovers from forming the planets. Most asteroids are in orbits between Mars and Jupiter. They range in size from dust specks to over 30 ...
... Comets may be leftovers from the formation of the Solar System. An asteroid is a mass of rock and minor amounts of frozen gas. Like comets, asteroids are probably leftovers from forming the planets. Most asteroids are in orbits between Mars and Jupiter. They range in size from dust specks to over 30 ...
ppt
... signficantly worse and these will require more telescope resources In some cases it is possible to use „tricks“ to reduce the noise due to activity. See CoRoT-7b at end of lecture. ...
... signficantly worse and these will require more telescope resources In some cases it is possible to use „tricks“ to reduce the noise due to activity. See CoRoT-7b at end of lecture. ...
common constellations
... • Ursa Major is the best known of the constellation and it appears in every reference known. • Calisto was changed to a bear because of Zeus's jealousy and transferred her to the sky. This is improbable, as the constellation was already well established before this time. • The drawings all show a be ...
... • Ursa Major is the best known of the constellation and it appears in every reference known. • Calisto was changed to a bear because of Zeus's jealousy and transferred her to the sky. This is improbable, as the constellation was already well established before this time. • The drawings all show a be ...
the printable Observing Olympics Object Info Sheet in pdf
... stars to produce this gas is ∿5.5 million years. NGC5846 was discovered by Willian Herschel on Feb. 24, 1786. NGC5907 – This edge-on spiral galaxy is located approximately 50 million light years from Earth and is also known as the “Knife Edge” or “Splinter” Galaxy. Visually it appears as a very thin ...
... stars to produce this gas is ∿5.5 million years. NGC5846 was discovered by Willian Herschel on Feb. 24, 1786. NGC5907 – This edge-on spiral galaxy is located approximately 50 million light years from Earth and is also known as the “Knife Edge” or “Splinter” Galaxy. Visually it appears as a very thin ...
Nebula Beginnings - University of Dayton
... titanic supernova explosions scatter this material back into space where it is used to create new generations of stars. This is the mechanism by which the gas and dust that formed our solar system became enriched with the elements that sustain life on this planet. Hubble spectroscopic observations w ...
... titanic supernova explosions scatter this material back into space where it is used to create new generations of stars. This is the mechanism by which the gas and dust that formed our solar system became enriched with the elements that sustain life on this planet. Hubble spectroscopic observations w ...
The First Stars - Amazon Web Services
... In the century that followed, astronomers measured the masses of many stars, typically by using the orbits in binary systems, and confirmed Eddington’s reasoning. The smaller balls of gas make the planets. The massive stars explode, after exhausting their nuclear fuel, because their masses are so la ...
... In the century that followed, astronomers measured the masses of many stars, typically by using the orbits in binary systems, and confirmed Eddington’s reasoning. The smaller balls of gas make the planets. The massive stars explode, after exhausting their nuclear fuel, because their masses are so la ...
Stars, Galaxies, and the Universe Section 1 Section 1
... from Earth, is caused by the movement of Earth. • The stars seem as though they are moving counterclockwise around a central star called Polaris, the North Star. Polaris is almost directly above the North Pole, and thus the star does not appear to move much. • Earth’s revolution around the sun cause ...
... from Earth, is caused by the movement of Earth. • The stars seem as though they are moving counterclockwise around a central star called Polaris, the North Star. Polaris is almost directly above the North Pole, and thus the star does not appear to move much. • Earth’s revolution around the sun cause ...
description
... Probably not. The stars within one constellation are all at different distances from us, on Earth. It’s only by chance, that they appear to be next to each other, to form a shape or constellation. Ask the students to go out at night in a couple of months and record their observations about the same ...
... Probably not. The stars within one constellation are all at different distances from us, on Earth. It’s only by chance, that they appear to be next to each other, to form a shape or constellation. Ask the students to go out at night in a couple of months and record their observations about the same ...
New light on our Sun`s fate - Space Telescope Science Institute
... Russell presented an early version of what we now call the “Hertzsprung-Russell diagram.” This plot compares a star’s brightness (on the vertical axis) to the star’s color, or spectrum (on the horizontal axis). With these 20th-century observations, the first ideas on stellar physics emerged — that a ...
... Russell presented an early version of what we now call the “Hertzsprung-Russell diagram.” This plot compares a star’s brightness (on the vertical axis) to the star’s color, or spectrum (on the horizontal axis). With these 20th-century observations, the first ideas on stellar physics emerged — that a ...
D1 Stellar quantities (PPT)
... Despite the difficulties in assessing whether stars exist singly or in groups of two or more, it is thought that around fifty per cent of the stars nearest to the Sun are part of a star system comprising two or more stars. Binary stars consist of two stars that rotate about a common centre of mass. ...
... Despite the difficulties in assessing whether stars exist singly or in groups of two or more, it is thought that around fifty per cent of the stars nearest to the Sun are part of a star system comprising two or more stars. Binary stars consist of two stars that rotate about a common centre of mass. ...
HR DIAGRAM (Page 1) - McDonald Observatory
... Looking up into the night sky, you see thousands of stars at varying distances from Earth. The luminosity and temperature of each star varies as well. These are the reasons behind the wide range of apparent magnitudes of stars. Imagine being able to magically pull or push each star (including the su ...
... Looking up into the night sky, you see thousands of stars at varying distances from Earth. The luminosity and temperature of each star varies as well. These are the reasons behind the wide range of apparent magnitudes of stars. Imagine being able to magically pull or push each star (including the su ...
Beyond Our Solar System
... the moon, and the moon’s orbit all lie in the small red box at lower left. – Now, however, you can see the sun and two other planets that are part of our solar system. – Our solar system consists of the sun, its family of planets, and some smaller bodies such as moons and comets. ...
... the moon, and the moon’s orbit all lie in the small red box at lower left. – Now, however, you can see the sun and two other planets that are part of our solar system. – Our solar system consists of the sun, its family of planets, and some smaller bodies such as moons and comets. ...
MS PowerPoint - National Schools` Observatory
... Q2. How fast is our star moving if it travels 40 wiggly pixels over two years? A2. We already know that our star is 52,087 AU away from the wiggle amplitude. So all we need is the angular movement, or apparent motion, of Barnard’s star across the telescope image and we can calculate the total distan ...
... Q2. How fast is our star moving if it travels 40 wiggly pixels over two years? A2. We already know that our star is 52,087 AU away from the wiggle amplitude. So all we need is the angular movement, or apparent motion, of Barnard’s star across the telescope image and we can calculate the total distan ...
Solutions
... by the newly formed OB Association stars that emit most of their energy as high-energy short-wavelength hardUV photons. The photons from the OB Association stars “power up” the HII region and keep it fluorescing. Thus the OB Association forms first and then the HII region is created around the vicin ...
... by the newly formed OB Association stars that emit most of their energy as high-energy short-wavelength hardUV photons. The photons from the OB Association stars “power up” the HII region and keep it fluorescing. Thus the OB Association forms first and then the HII region is created around the vicin ...
CHAPTER 30: STARS, GALAXIES AND THE UNIVERSE Analyzing
... Stars such as our sun are considered medium-sized stars. The sun has a diameter of 1,390,000 km. Most of the stars you can see in the night sky are medium-sized stars. Many stars also have about the same mass as the sun, however some stars may be more or less massive. Stellar Motion Apparent Motion ...
... Stars such as our sun are considered medium-sized stars. The sun has a diameter of 1,390,000 km. Most of the stars you can see in the night sky are medium-sized stars. Many stars also have about the same mass as the sun, however some stars may be more or less massive. Stellar Motion Apparent Motion ...
Solutions
... 2. Type Ia and Type II Supernovae are each explosions that signify the death of a star and which are briefly as luminous as an entire galaxy. However, they are very different sorts of objects. What is the original source of the energy which powers each type of explosion? (I.e. where did the energy ...
... 2. Type Ia and Type II Supernovae are each explosions that signify the death of a star and which are briefly as luminous as an entire galaxy. However, they are very different sorts of objects. What is the original source of the energy which powers each type of explosion? (I.e. where did the energy ...
Analysis of Two Pulsating X-ray Sources
... graph called a light curve. The example to the left is a light curve that shows the variability of SS Cygni over a 300 day period of observation. SS Cygni is a cataclysmic variable – stars that have occasional violent outbursts caused by thermonuclear processes either in their surface layers or deep ...
... graph called a light curve. The example to the left is a light curve that shows the variability of SS Cygni over a 300 day period of observation. SS Cygni is a cataclysmic variable – stars that have occasional violent outbursts caused by thermonuclear processes either in their surface layers or deep ...
PHYSICS – Astrophysics Section I
... to calculate the absolute or apparent magnitude of stars using data and a reference star The first equation is used to calculate the absolute magnitude given the distance and apparent magnitude (often it is used to calculate distance given M and m). The second equation is used to calculate the ratio ...
... to calculate the absolute or apparent magnitude of stars using data and a reference star The first equation is used to calculate the absolute magnitude given the distance and apparent magnitude (often it is used to calculate distance given M and m). The second equation is used to calculate the ratio ...
Boötes
Boötes /boʊˈoʊtiːz/ is a constellation in the northern sky, located between 0° and +60° declination, and 13 and 16 hours of right ascension on the celestial sphere. The name comes from the Greek Βοώτης, Boōtēs, meaning herdsman or plowman (literally, ox-driver; from βοῦς bous “cow”). The ""ö"" in the name is a diaeresis, not an umlaut, meaning that each 'o' is to be pronounced separately.One of the 48 constellations described by the 2nd century astronomer Ptolemy, Boötes is now one of the 88 modern constellations. It contains the fourth brightest star in the night sky, the orange-hued Arcturus. Boötes is home to many other bright stars, including eight above the fourth magnitude and an additional 21 above the fifth magnitude, making a total of 29 stars easily visible to the naked eye.