Dark Matter -24-------------------------------~-----------R-E-S-O-N-A-N-C
... There have been three reactions to the discovery of dark matter: (i) It doesn't exist; the law of gravitation must be modified so that the stars are all there is to a galaxy. (ii) Dark matter exists, but consists entirely of ord~nary matter - Jupiter-like objects called broum dwarfs that are not mas ...
... There have been three reactions to the discovery of dark matter: (i) It doesn't exist; the law of gravitation must be modified so that the stars are all there is to a galaxy. (ii) Dark matter exists, but consists entirely of ord~nary matter - Jupiter-like objects called broum dwarfs that are not mas ...
13 - Joe Griffin Media Ministries
... since the planet seems to be moving in a direction opposite to that which is typical for planets. Finally as Earth swings past the planet in its orbit, it appears to resume its normal west-to-east drift on successive nights.1 With at least a cursory understanding of retrogradation of planets viewed ...
... since the planet seems to be moving in a direction opposite to that which is typical for planets. Finally as Earth swings past the planet in its orbit, it appears to resume its normal west-to-east drift on successive nights.1 With at least a cursory understanding of retrogradation of planets viewed ...
Sample Exam for 3 rd Astro Exam
... 15. Where is the galactic gas layer located? A. In the galactic halo. B. In the galactic nuclear bulge C. Beyond the Sun above and below the galactic mid-plane D. Perpendicular to the galactic plane. E. In the galactic mid-plane 16. True or false: The Sun is located within the galactic gas layer of ...
... 15. Where is the galactic gas layer located? A. In the galactic halo. B. In the galactic nuclear bulge C. Beyond the Sun above and below the galactic mid-plane D. Perpendicular to the galactic plane. E. In the galactic mid-plane 16. True or false: The Sun is located within the galactic gas layer of ...
Stars are made of very hot gas. This gas is mostly hydrogen and
... Remember that as a star gets older it begins to run out of fuel. As the star runs out of fuel, it will start to burn out Just like the sun sized stars blue giant stars also begin to burn helium. As they do these stars get much hotter This extra heat makes the outside of an old blue giant star stretc ...
... Remember that as a star gets older it begins to run out of fuel. As the star runs out of fuel, it will start to burn out Just like the sun sized stars blue giant stars also begin to burn helium. As they do these stars get much hotter This extra heat makes the outside of an old blue giant star stretc ...
Colours of the rainbow
... 4. List all the pairs of alternate angles you can find in the diagram. 5. List all the pairs of corresponding angles you can find in the diagram. 6. List all the pairs of co-interior angles you can find in the diagram. 7. The angle that the rainbow appears to take in the sky is represented by ∠BGE. ...
... 4. List all the pairs of alternate angles you can find in the diagram. 5. List all the pairs of corresponding angles you can find in the diagram. 6. List all the pairs of co-interior angles you can find in the diagram. 7. The angle that the rainbow appears to take in the sky is represented by ∠BGE. ...
Galaxies Galaxies M81
... Types of Galaxies I. Spirals Spiral galaxies are so-named because of the graceful shapes of arms emanating from a bright central nucleus. Spirals are classified according to how tightly or loosely wound the arms are, and it turns out that the brightness of the central nucleus is correlated to the t ...
... Types of Galaxies I. Spirals Spiral galaxies are so-named because of the graceful shapes of arms emanating from a bright central nucleus. Spirals are classified according to how tightly or loosely wound the arms are, and it turns out that the brightness of the central nucleus is correlated to the t ...
Slides from Lecture04
... • The brightest stars were labeled “1st magnitude” stars • Successively fainter stars were catalogued as 2nd magnitude, 3rd magnitude, etc. • Faintest stars (visible to the “naked eye”) were catalogued by Greek astronomers as 6th magnitude stars. • Astronomers continue to use this “magnitude” system ...
... • The brightest stars were labeled “1st magnitude” stars • Successively fainter stars were catalogued as 2nd magnitude, 3rd magnitude, etc. • Faintest stars (visible to the “naked eye”) were catalogued by Greek astronomers as 6th magnitude stars. • Astronomers continue to use this “magnitude” system ...
Beyond Our Solar System
... • The orbits of the planets are not perfect circles, and this is particularly apparent for Mercury. – Its orbit carries it as close to the sun as 0.307 AU and as far away as 0.467 AU. – You can see this variation in the distance from Mercury to the sun in the figure. – Earth’s orbit is more circula ...
... • The orbits of the planets are not perfect circles, and this is particularly apparent for Mercury. – Its orbit carries it as close to the sun as 0.307 AU and as far away as 0.467 AU. – You can see this variation in the distance from Mercury to the sun in the figure. – Earth’s orbit is more circula ...
HOMEWORK #1
... The figure below shows the lightcurve of the star HD 179070 as an orbiting exoplanet transits in front of the star every 2.785755 days and eclipses some of the star’s brightness. From the star’s spectrum, we know the star has a mass of 1.3 MSun and a radius of 1.9 RSun. Based on the relative amount ...
... The figure below shows the lightcurve of the star HD 179070 as an orbiting exoplanet transits in front of the star every 2.785755 days and eclipses some of the star’s brightness. From the star’s spectrum, we know the star has a mass of 1.3 MSun and a radius of 1.9 RSun. Based on the relative amount ...
HOMEWORK #1
... The figure below shows the lightcurve of the star HD 179070 as an orbiting exoplanet transits in front of the star every 2.785755 days and eclipses some of the star’s brightness. From the star’s spectrum, we know the star has a mass of 1.3 MSun and a radius of 1.9 RSun. Based on the relative amount ...
... The figure below shows the lightcurve of the star HD 179070 as an orbiting exoplanet transits in front of the star every 2.785755 days and eclipses some of the star’s brightness. From the star’s spectrum, we know the star has a mass of 1.3 MSun and a radius of 1.9 RSun. Based on the relative amount ...
Star Fromation and ISM
... in the globular cluster is due to its extreme age – those stars have already used up their fuel and have moved off the main sequence. ...
... in the globular cluster is due to its extreme age – those stars have already used up their fuel and have moved off the main sequence. ...
Star Questions 2008 - Fort Thomas Independent Schools
... Describe the death of these two stars, one with 2 solar masses and one with 10 solar masses. What is a supernova and what is its significance? Describe the difference between a Type I and Type II supernova? What will happen to our Sun when it dies? Which is more luminous, a low-mass or a high-mass s ...
... Describe the death of these two stars, one with 2 solar masses and one with 10 solar masses. What is a supernova and what is its significance? Describe the difference between a Type I and Type II supernova? What will happen to our Sun when it dies? Which is more luminous, a low-mass or a high-mass s ...
Name
... A) The rate that visible light from the Sun is being absorbed by the Earth’s atmosphere B) The rate that hydrogen is being fused into helium in the Sun C) The rate that gamma rays are hitting the Earth’s atmosphere D) The rate that white dwarfs are being formed in the galaxy E) The rate that stars f ...
... A) The rate that visible light from the Sun is being absorbed by the Earth’s atmosphere B) The rate that hydrogen is being fused into helium in the Sun C) The rate that gamma rays are hitting the Earth’s atmosphere D) The rate that white dwarfs are being formed in the galaxy E) The rate that stars f ...
Name - MIT
... A) The rate that visible light from the Sun is being absorbed by the Earth’s atmosphere B) The rate that hydrogen is being fused into helium in the Sun C) The rate that gamma rays are hitting the Earth’s atmosphere D) The rate that white dwarfs are being formed in the galaxy E) The rate that stars f ...
... A) The rate that visible light from the Sun is being absorbed by the Earth’s atmosphere B) The rate that hydrogen is being fused into helium in the Sun C) The rate that gamma rays are hitting the Earth’s atmosphere D) The rate that white dwarfs are being formed in the galaxy E) The rate that stars f ...
Name - MIT
... A) The rate that visible light from the Sun is being absorbed by the Earth’s atmosphere B) The rate that hydrogen is being fused into helium in the Sun C) The rate that gamma rays are hitting the Earth’s atmosphere D) The rate that white dwarfs are being formed in the galaxy E) The rate that stars f ...
... A) The rate that visible light from the Sun is being absorbed by the Earth’s atmosphere B) The rate that hydrogen is being fused into helium in the Sun C) The rate that gamma rays are hitting the Earth’s atmosphere D) The rate that white dwarfs are being formed in the galaxy E) The rate that stars f ...
Name
... A) The rate that visible light from the Sun is being absorbed by the Earth’s atmosphere B) The rate that gamma rays are hitting the Earth’s atmosphere C) The rate that hydrogen is being fused into helium in the Sun D) The rate that white dwarfs are being formed in the galaxy E) The rate that stars f ...
... A) The rate that visible light from the Sun is being absorbed by the Earth’s atmosphere B) The rate that gamma rays are hitting the Earth’s atmosphere C) The rate that hydrogen is being fused into helium in the Sun D) The rate that white dwarfs are being formed in the galaxy E) The rate that stars f ...
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.