Sample Midterm - IUPUI Physics
... 14. Why would using a cluster of stars in which all the stars are the same distance to plot on an HR diagram be very useful? a) The stars would then all be the same brightness b) The stars would then all be the same color c) Stars with different apparent magnitudes have different absolute magnitudes ...
... 14. Why would using a cluster of stars in which all the stars are the same distance to plot on an HR diagram be very useful? a) The stars would then all be the same brightness b) The stars would then all be the same color c) Stars with different apparent magnitudes have different absolute magnitudes ...
Stars III - Indiana University Astronomy
... • A star’s mass determines its entire life story because it determines its core temperature • High-mass stars with >8MSun have short lives, eventually becoming hot enough to make iron, and end in supernova explosions • Sun-like stars with <2MSun have long lives, never become hot enough to fuse carbo ...
... • A star’s mass determines its entire life story because it determines its core temperature • High-mass stars with >8MSun have short lives, eventually becoming hot enough to make iron, and end in supernova explosions • Sun-like stars with <2MSun have long lives, never become hot enough to fuse carbo ...
2017 Div. C (High School) Astronomy Help Session
... 0.4 stars per cubic parsec on average 100 to 1000 stars per cubic parsec in its core The cluster has a spherical shape. Very old objects ~10 billion years old – perhaps as old as our galaxy Very old stars Contains hundreds of thousands of stars Some may have massive black holes in their cores. These ...
... 0.4 stars per cubic parsec on average 100 to 1000 stars per cubic parsec in its core The cluster has a spherical shape. Very old objects ~10 billion years old – perhaps as old as our galaxy Very old stars Contains hundreds of thousands of stars Some may have massive black holes in their cores. These ...
DTU_9e_ch13
... A pulsar is a rapidly rotating neutron star with a powerful magnetic field that makes it a source of periodic radio and other electromagnetic pulses. Energy pours out of the polar regions of the neutron star in intense beams that sweep across the sky. ...
... A pulsar is a rapidly rotating neutron star with a powerful magnetic field that makes it a source of periodic radio and other electromagnetic pulses. Energy pours out of the polar regions of the neutron star in intense beams that sweep across the sky. ...
Shashanka R. Gurumath1, Hiremath KM2, and
... harbor an Earth mass planet is estimated to be ~ 0.2 times the Sun's mass. According to astronomical standard, this estimated mass of a star belongs to spectral type of M stars. It is to be noted that, nearly 70% of stars in our galaxy are belongs to M stars. Hence, this study suggests that, M stars ...
... harbor an Earth mass planet is estimated to be ~ 0.2 times the Sun's mass. According to astronomical standard, this estimated mass of a star belongs to spectral type of M stars. It is to be noted that, nearly 70% of stars in our galaxy are belongs to M stars. Hence, this study suggests that, M stars ...
Chapter 11
... 12. According to Figure 11-5, the Protosun was cooler yet much more luminous than the Sun is now. How can this be true? a. The Protosun had more mass. b. The Protosun was much larger. c. The rate of nuclear fusion was higher inside the Protosun. d. Both a and c above. e. Both b and c above. ...
... 12. According to Figure 11-5, the Protosun was cooler yet much more luminous than the Sun is now. How can this be true? a. The Protosun had more mass. b. The Protosun was much larger. c. The rate of nuclear fusion was higher inside the Protosun. d. Both a and c above. e. Both b and c above. ...
Life Cycle of a Star
... Star like our sun begins to die • Star begins to die when its core temperature rises to a point where fuel is used up • A carbon-oxygen core forms • Eventually the gases at a star’s surface begin to blow away in abrupt bursts • Resulting glowing halo is called a planetary nebula ...
... Star like our sun begins to die • Star begins to die when its core temperature rises to a point where fuel is used up • A carbon-oxygen core forms • Eventually the gases at a star’s surface begin to blow away in abrupt bursts • Resulting glowing halo is called a planetary nebula ...
The formation of the galaxy is believed to be similar
... The position of the Sun in the Milky Way Galaxy is best described as a) in the disk, slightly more than halfway out from the center. b) very close to the center. c) in an open cluster in the disk. d) in a globular cluster in the halo. ...
... The position of the Sun in the Milky Way Galaxy is best described as a) in the disk, slightly more than halfway out from the center. b) very close to the center. c) in an open cluster in the disk. d) in a globular cluster in the halo. ...
The Lifecycle of the Stars
... *white dwarfs may only be the size of the earth, but it has the mass equal to half oh the sun. *it is the 6th stage in forming a star. Lifecycle of a star notes *also called a degenerate dwarf *it is a small star made up of electron-degenerate matter. http://en.wikipedia.org/wiki/White_dwarf Electro ...
... *white dwarfs may only be the size of the earth, but it has the mass equal to half oh the sun. *it is the 6th stage in forming a star. Lifecycle of a star notes *also called a degenerate dwarf *it is a small star made up of electron-degenerate matter. http://en.wikipedia.org/wiki/White_dwarf Electro ...
Cassiopeia Kelly Pearce
... Skiing Cluster, the Owl Cluster or the ET cluster, depending on how you perceive the cluster of stars (Starrynighteducation.com, 2010; Gater & Vamplew, 2010, p.88). It is located near the edge of the constellation boundary, bordering on Cepheus (Starry Night Enthusiast, 2010). NGC 457 is an open clu ...
... Skiing Cluster, the Owl Cluster or the ET cluster, depending on how you perceive the cluster of stars (Starrynighteducation.com, 2010; Gater & Vamplew, 2010, p.88). It is located near the edge of the constellation boundary, bordering on Cepheus (Starry Night Enthusiast, 2010). NGC 457 is an open clu ...
THE LIFE CYCLES OF STARS (3)
... We shall need to understand how we measure the brightness of stars, their colour and distance. STELLAR MAGNITUDE SYSTEM The ancient Babylonians 1800 BC put together the first star catalogues. The Greek Hipparchus (180-125 BC) and later Claudius Ptolemy in Alexandria about 150 AD classified stars acc ...
... We shall need to understand how we measure the brightness of stars, their colour and distance. STELLAR MAGNITUDE SYSTEM The ancient Babylonians 1800 BC put together the first star catalogues. The Greek Hipparchus (180-125 BC) and later Claudius Ptolemy in Alexandria about 150 AD classified stars acc ...
CosmologyL1
... provide detailed optical images covering more than a quarter of the sky, and a 3-dimensional map of about a million galaxies and quasars. SDSS uses 2.5-meter telescope on Apache Point, NM, equipped with two powerful special-purpose instruments. The 120-megapixel camera can image 1.5 square degrees o ...
... provide detailed optical images covering more than a quarter of the sky, and a 3-dimensional map of about a million galaxies and quasars. SDSS uses 2.5-meter telescope on Apache Point, NM, equipped with two powerful special-purpose instruments. The 120-megapixel camera can image 1.5 square degrees o ...
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.