answers2004_05_BC - Particle Physics and Particle Astrophysics
... life is to evolve on it? Briefly describe how future astronomers might find evidence for life, not necessarily intelligent, in other planetary systems. Orbiting in reasonably circular orbit, and not tidally locked to star (no great extremes of temperature); around stable star (not close binary and ...
... life is to evolve on it? Briefly describe how future astronomers might find evidence for life, not necessarily intelligent, in other planetary systems. Orbiting in reasonably circular orbit, and not tidally locked to star (no great extremes of temperature); around stable star (not close binary and ...
Used for stars w/in a few hundred LY
... Proxima Centauri is the closest star to our sun. Proxima Centauri is 4.6 light years away. How many miles away is Proxima Centauri? • 4.6 light years x 6 trillion mi= 27.6 trillion miles away (27,600,000,000,000 miles or 2.76 x 10 13 ) • Since Proxima Centauri is 4.6 light years away, it takes 4.6 ...
... Proxima Centauri is the closest star to our sun. Proxima Centauri is 4.6 light years away. How many miles away is Proxima Centauri? • 4.6 light years x 6 trillion mi= 27.6 trillion miles away (27,600,000,000,000 miles or 2.76 x 10 13 ) • Since Proxima Centauri is 4.6 light years away, it takes 4.6 ...
Objectives: Learn what units scientists measure distances in space
... Proxima Centauri is the closest star to our sun. Proxima Centauri is 4.6 light years away. How many miles away is Proxima Centauri? • 4.6 light years x 6 trillion mi= 27.6 trillion miles away (27,600,000,000,000 miles or 2.76 x 10 13 ) • Since Proxima Centauri is 4.6 light years away, it takes 4.6 ...
... Proxima Centauri is the closest star to our sun. Proxima Centauri is 4.6 light years away. How many miles away is Proxima Centauri? • 4.6 light years x 6 trillion mi= 27.6 trillion miles away (27,600,000,000,000 miles or 2.76 x 10 13 ) • Since Proxima Centauri is 4.6 light years away, it takes 4.6 ...
STELLAR EVOLUTION
... fusing hydrogen quietly in their cores. Their surface temperature and luminosity change very little during this time. Stars then evolve, progressively burning the “ash” of one fusion process in the next fusion process, until they exhaust all fuel possibilities. The star then ends its existence as a ...
... fusing hydrogen quietly in their cores. Their surface temperature and luminosity change very little during this time. Stars then evolve, progressively burning the “ash” of one fusion process in the next fusion process, until they exhaust all fuel possibilities. The star then ends its existence as a ...
Skymapper and Kepler K2: Finding the Origin of Hot Gas Giants
... determine which stars are young. • Data/pretty images prior to May 1 would really help the proposal for K2 targets! • This is standard “fast” survey data. ...
... determine which stars are young. • Data/pretty images prior to May 1 would really help the proposal for K2 targets! • This is standard “fast” survey data. ...
Astr604-Ch1
... from infrared to soft X-rays. The effective temperature of the Sun is 5780 K. We should bear in mind, however, that conclusions regarding internal temperatures cannot be drawn from surface temperatures without a theory. Color temperature: Temperature inferred from color, usually by fitting a Planck ...
... from infrared to soft X-rays. The effective temperature of the Sun is 5780 K. We should bear in mind, however, that conclusions regarding internal temperatures cannot be drawn from surface temperatures without a theory. Color temperature: Temperature inferred from color, usually by fitting a Planck ...
Slide 1
... helium. At these temperatures most of the hydrogen is ionized, so the hydrogen lines are weak. Both HeI and HeII (singly ionized helium) are seen in the higher temperature examples. The radiation from O5 stars is so intense that it can ionize hydrogen over a volume of space 1000 light years across. ...
... helium. At these temperatures most of the hydrogen is ionized, so the hydrogen lines are weak. Both HeI and HeII (singly ionized helium) are seen in the higher temperature examples. The radiation from O5 stars is so intense that it can ionize hydrogen over a volume of space 1000 light years across. ...
Space Unit Exam /31
... f. ____ The Sun makes up 9.98% of our solar systems mass. _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ g. ____ The sun is 4.6 billion years old and halfw ...
... f. ____ The Sun makes up 9.98% of our solar systems mass. _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ g. ____ The sun is 4.6 billion years old and halfw ...
Astronomy
... crescent phase as viewed from the Earth. In the Copernican system, Venus should exhibit a complete set of phases as viewed from the Earth because it is illuminated from the center of its orbit. ...
... crescent phase as viewed from the Earth. In the Copernican system, Venus should exhibit a complete set of phases as viewed from the Earth because it is illuminated from the center of its orbit. ...
Stars: Properties and Classification
... – the total amount of power being released from a star (this is an intrinsic property of the star). n Brightness – the power from that star that actually gets to us. This is the quantity we measure with a telescope. A Star s brightness depends on its distance from us. - there are stars much more lu ...
... – the total amount of power being released from a star (this is an intrinsic property of the star). n Brightness – the power from that star that actually gets to us. This is the quantity we measure with a telescope. A Star s brightness depends on its distance from us. - there are stars much more lu ...
STAAR Review – Week Ten
... Astronomers can indirectly measure the heat of objects such as particles of dust between stars. They do this by determining the – a. frequency of the particles’ infrared waves. b. size of the particles. c. speed of the particles from one location to another. d. number of atoms that the particles con ...
... Astronomers can indirectly measure the heat of objects such as particles of dust between stars. They do this by determining the – a. frequency of the particles’ infrared waves. b. size of the particles. c. speed of the particles from one location to another. d. number of atoms that the particles con ...
Semester Review Answers - School District of La Crosse
... 8. In the beginning of the young universe there was nothing, but everything T 9. In a closed universe it is said to expand forever. F 10. The Jovian planets are solid planets. F 11 Venus has retrograde rotation T 12. Newton was the first scientist to describe space as a combination of space/time. F ...
... 8. In the beginning of the young universe there was nothing, but everything T 9. In a closed universe it is said to expand forever. F 10. The Jovian planets are solid planets. F 11 Venus has retrograde rotation T 12. Newton was the first scientist to describe space as a combination of space/time. F ...
Celestial Bodies (Mike Stroppa) - Powerpoint
... • The outer layers of the star begin to expand • May become 100 times its original size • Now called a red giant • When our Sun reaches this stage it will engulf Mercury, Venus, Earth and Mars! • Eventually the outer gases are burnt off, and all that is left is a super dense core ...
... • The outer layers of the star begin to expand • May become 100 times its original size • Now called a red giant • When our Sun reaches this stage it will engulf Mercury, Venus, Earth and Mars! • Eventually the outer gases are burnt off, and all that is left is a super dense core ...
Physics 127 Descriptive Astronomy Homework #20 Key
... the known period- luminosity relation for Cepheids, he obtained and compared the absolute magnitudes of these Cepheids with his observed apparent magnitudes, yielding a distance for the Andromeda “Nebula” which put it far outside of our galaxy. ...
... the known period- luminosity relation for Cepheids, he obtained and compared the absolute magnitudes of these Cepheids with his observed apparent magnitudes, yielding a distance for the Andromeda “Nebula” which put it far outside of our galaxy. ...
The Hertzsprung-Russell diagram and the nature of stars
... • Physical argument 1: what holds stars up? • Physical argument 2: what powers the stars (where do they get their energy supply?) ...
... • Physical argument 1: what holds stars up? • Physical argument 2: what powers the stars (where do they get their energy supply?) ...
astr100_finalexam
... D) around a single point in space, the presumed location of the original Big Bang that created the Universe. [23] Current evidence indicates the Universe’s expansion ____. A) is speeding up B) is slowing down C) has stopped D) is constant [24] Where are we? A) At the exact center of an expanding Uni ...
... D) around a single point in space, the presumed location of the original Big Bang that created the Universe. [23] Current evidence indicates the Universe’s expansion ____. A) is speeding up B) is slowing down C) has stopped D) is constant [24] Where are we? A) At the exact center of an expanding Uni ...
Combining Practices with Core Ideas in the NGSS
... the distance to a star the baseline is the diameter of Earth’s orbit around the sun. To show the evidence that the sun and stars are made from the same elements, I could have the students use a diffraction grating to see that the spectrum of a light source is like a fingerprint, and share the ninete ...
... the distance to a star the baseline is the diameter of Earth’s orbit around the sun. To show the evidence that the sun and stars are made from the same elements, I could have the students use a diffraction grating to see that the spectrum of a light source is like a fingerprint, and share the ninete ...
Big bang galaxies stars Name: Date: 1. The diagram below
... Base your answer(s) to the following question(s) on the calendar model shown below of the inferred history of the universe and on your knowledge of Earth science. The 12-month time line begins with the Big Bang on January 1 and continues to the present time, which is represented by midnight on Decem ...
... Base your answer(s) to the following question(s) on the calendar model shown below of the inferred history of the universe and on your knowledge of Earth science. The 12-month time line begins with the Big Bang on January 1 and continues to the present time, which is represented by midnight on Decem ...
Images from the Las Cumbres Observatory Global Telescope
... Sirius, also known as the Dog Star, is the brightest star in the sky and the 5th nearest star system to the Sun. Sirius is a binary star with an apparent visual mag. of -1.42. It is only 8.6 LY distant. The brighter component, Sirius A, is a white main sequence star and the companion, Sirius B, is a ...
... Sirius, also known as the Dog Star, is the brightest star in the sky and the 5th nearest star system to the Sun. Sirius is a binary star with an apparent visual mag. of -1.42. It is only 8.6 LY distant. The brighter component, Sirius A, is a white main sequence star and the companion, Sirius B, is a ...
Constellations
... Most atlases of today have their origins with those that were derived from Hipparchus and used his “magnitude” system. ...
... Most atlases of today have their origins with those that were derived from Hipparchus and used his “magnitude” system. ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.