The most important questions to study for the exam
... • Measuring the Doppler shift as the Earth moves alternately toward and away from the star over 1 year • Combining the star's luminosity class, obtained from its spectrum, with its apparent magnitude, a technique known as spectroscopic parallax • Measuring the change in position of the star as the E ...
... • Measuring the Doppler shift as the Earth moves alternately toward and away from the star over 1 year • Combining the star's luminosity class, obtained from its spectrum, with its apparent magnitude, a technique known as spectroscopic parallax • Measuring the change in position of the star as the E ...
THE CELESTIAL SPHERE
... imagine the stars to remain fixed on a sphere of very large radius with the earth at its centre. We call this sphere the celestial sphere. At any point of time we can only see the upper half of the celestial sphere. The point on this dome right above our head is known as zenith. The lower boundary o ...
... imagine the stars to remain fixed on a sphere of very large radius with the earth at its centre. We call this sphere the celestial sphere. At any point of time we can only see the upper half of the celestial sphere. The point on this dome right above our head is known as zenith. The lower boundary o ...
Study Guide for the Final Astronomy Exam
... i) The apparent motion of the Sun on daily and annual time scales (Unit 6 & 7) ii) Multiple Choice and Label the Diagram questions on the Celestial Sphere model (See Unit 5) C) Multiple choice questions on the apparent motion of the stars similar to prior exam questions 2) Unit 11: Apparent Motion o ...
... i) The apparent motion of the Sun on daily and annual time scales (Unit 6 & 7) ii) Multiple Choice and Label the Diagram questions on the Celestial Sphere model (See Unit 5) C) Multiple choice questions on the apparent motion of the stars similar to prior exam questions 2) Unit 11: Apparent Motion o ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... supermassive stars could explode without leaving any black hole or other stellar remnant behind. Chen had been fascinated by supermassive black holes since grad school at the University of Minnesota. Every big galaxy has one of these voracious monsters at its center: a black hole millions or even bi ...
... supermassive stars could explode without leaving any black hole or other stellar remnant behind. Chen had been fascinated by supermassive black holes since grad school at the University of Minnesota. Every big galaxy has one of these voracious monsters at its center: a black hole millions or even bi ...
Outside the Solar System Outside the Solar System OUTSIDE THE
... fortunate to benefit from technology that allows us to see and study parts of the universe that earlier cultures never could have. However, we are also limited by our current knowledge and technology. As time marches on, humankind will continue to pursue an understanding of the universe and its many ...
... fortunate to benefit from technology that allows us to see and study parts of the universe that earlier cultures never could have. However, we are also limited by our current knowledge and technology. As time marches on, humankind will continue to pursue an understanding of the universe and its many ...
ES Review Power P
... The Earth rotates on its axis once every 24 hours (it rotates 360o/24 hrs.=15oper hour) The Moon revolves around the Earth once every 29 days The moon rotates on its axis once every 27-29 days The sun & stars DO NOT move in an orbit, BUT the universe is expanding (red shift). Constellations change w ...
... The Earth rotates on its axis once every 24 hours (it rotates 360o/24 hrs.=15oper hour) The Moon revolves around the Earth once every 29 days The moon rotates on its axis once every 27-29 days The sun & stars DO NOT move in an orbit, BUT the universe is expanding (red shift). Constellations change w ...
A Story about a Star`s Life
... • Brightest stars had magnitude 1 and dimmest had magnitude 6 • The system is still used today and units of measurement are called apparent magnitudes to emphasize how bright a star looks to an observer ...
... • Brightest stars had magnitude 1 and dimmest had magnitude 6 • The system is still used today and units of measurement are called apparent magnitudes to emphasize how bright a star looks to an observer ...
"Stars" Power Point notes
... Star Distances • One AU is the average distance between the Sun and Earth. • A light-year is the distance light travels in one year: 9,500,000,000,000 km or 63,000 AU. ...
... Star Distances • One AU is the average distance between the Sun and Earth. • A light-year is the distance light travels in one year: 9,500,000,000,000 km or 63,000 AU. ...
LAB: Star Classification
... ScienceDaily (Dec. 12, 2008) — Astronomy & Astrophysics is publishing observations of the white dwarf KPD 0005+5106. The team who present these observations show that this white dwarf is among the hottest stars known so far, with a temperature of 200,000º K at its surface. Stars of intermediate mass ...
... ScienceDaily (Dec. 12, 2008) — Astronomy & Astrophysics is publishing observations of the white dwarf KPD 0005+5106. The team who present these observations show that this white dwarf is among the hottest stars known so far, with a temperature of 200,000º K at its surface. Stars of intermediate mass ...
Stars, Galaxies, and the Universe Section 1 Distances to Stars
... 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 ...
Spectral Classification
... B stars are extremely luminous and blue. As O and B stars are so powerful, they live for a very short time. They do not stray far from the area in which they were formed as they don't have the time. They therefore tend to cluster together in what we call OB1 associations. and contains all of the con ...
... B stars are extremely luminous and blue. As O and B stars are so powerful, they live for a very short time. They do not stray far from the area in which they were formed as they don't have the time. They therefore tend to cluster together in what we call OB1 associations. and contains all of the con ...
RED “O Big Red
... Kara reset the star reader. Where had she heard that unusual name before? then she remembered—aldebaran (all-deB-er-on) was one of the brightest stars in earth’s sky. soon the Stella was bathed in red light. “this star is enormous!” manolo shouted. “it’s 44 times wider than the sun, but its temperat ...
... Kara reset the star reader. Where had she heard that unusual name before? then she remembered—aldebaran (all-deB-er-on) was one of the brightest stars in earth’s sky. soon the Stella was bathed in red light. “this star is enormous!” manolo shouted. “it’s 44 times wider than the sun, but its temperat ...
Star Classification Lab
... Dwarfs, Red Dwarfs, Red Giants, Main Sequence Stars, and Blue Supergiants. TABLE 7–2 ...
... Dwarfs, Red Dwarfs, Red Giants, Main Sequence Stars, and Blue Supergiants. TABLE 7–2 ...
Heavy Metal from Ancient Superstars
... Studies of the most metal-poor stars in the Galaxy give us access to the state of the Universe at very early times The most metal-poor stars in our Galaxy contain only 1/10,000 of the amount of metal that the sun has. The most distant galaxies we can study contain 1/100 (1%) of the amount of metal ...
... Studies of the most metal-poor stars in the Galaxy give us access to the state of the Universe at very early times The most metal-poor stars in our Galaxy contain only 1/10,000 of the amount of metal that the sun has. The most distant galaxies we can study contain 1/100 (1%) of the amount of metal ...
S1-4-05 - Seasonal Constelallations - Lesson
... - Each day, as the Earth continues to orbit, a few stars are visible in the east that were not visible the night before - The sky seems to shift approximately 1 degree per day, which shouldn’t be surprising because there are 365 days in a year and the Earth’s orbit is circular (360 degrees). This me ...
... - Each day, as the Earth continues to orbit, a few stars are visible in the east that were not visible the night before - The sky seems to shift approximately 1 degree per day, which shouldn’t be surprising because there are 365 days in a year and the Earth’s orbit is circular (360 degrees). This me ...
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.