Chemical Composition of Stars II
... • Students will put on the glasses provided and take note of the spectral lines that appear on the right (3:00 position) • Students should write notes as to what colors are being observed and in which order the colors appear • Students will reproduce what they observed using colored pencils on the s ...
... • Students will put on the glasses provided and take note of the spectral lines that appear on the right (3:00 position) • Students should write notes as to what colors are being observed and in which order the colors appear • Students will reproduce what they observed using colored pencils on the s ...
galaxies and stars - Valhalla High School
... • A galaxy is a giant structure that contains billions of stars. • The farther away a galaxy is from us, the faster it is moving. • It takes 2 million years for light from the Andromeda galaxy to reach earth. • Astronomers have classified most galaxies into three main categories: spiral, elliptical ...
... • A galaxy is a giant structure that contains billions of stars. • The farther away a galaxy is from us, the faster it is moving. • It takes 2 million years for light from the Andromeda galaxy to reach earth. • Astronomers have classified most galaxies into three main categories: spiral, elliptical ...
star_temperatures
... still appear vastly different in brightness if their distances from Earth are different • Reason: intensity of light inversely proportional to the square of the distance the light has to travel – Light wave fronts from point sources are like the surfaces of expanding spheres ...
... still appear vastly different in brightness if their distances from Earth are different • Reason: intensity of light inversely proportional to the square of the distance the light has to travel – Light wave fronts from point sources are like the surfaces of expanding spheres ...
chap17_s05_probs
... A star is determined to have a surface temperature twice that of the Sun, and a luminosity 64 times greater. What is this star’s radius, expressed in solar units ? ANSWER: Problem 4 is an application of the radius – luminosity – temperature relation for stars. Given two of these values, the third va ...
... A star is determined to have a surface temperature twice that of the Sun, and a luminosity 64 times greater. What is this star’s radius, expressed in solar units ? ANSWER: Problem 4 is an application of the radius – luminosity – temperature relation for stars. Given two of these values, the third va ...
Astronomy Quiz Units 1 to 3
... “A planet (from Greek πλανήτης, alternative form of πλάνης "wanderer") is a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighboring region of planetesimals. “ (Wiki ...
... “A planet (from Greek πλανήτης, alternative form of πλάνης "wanderer") is a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighboring region of planetesimals. “ (Wiki ...
The Sun - University of Redlands
... particles stripped from the Sun’s surface. • When charged particles and magnetic fields interact: ...
... particles stripped from the Sun’s surface. • When charged particles and magnetic fields interact: ...
Lesson 7 - Blackbody Radiation and Luminosity
... luminosity that is 1/40 of that of Antares A. Calculate the ratio of the radius of Antares A to Antares B. Antares A has a surface temperature of 3000 K. This info was provided in an earlier part of the problem (not stated). In addition, you must know the formula for the surface area of a sphere to ...
... luminosity that is 1/40 of that of Antares A. Calculate the ratio of the radius of Antares A to Antares B. Antares A has a surface temperature of 3000 K. This info was provided in an earlier part of the problem (not stated). In addition, you must know the formula for the surface area of a sphere to ...
A search for planets around intermediate Mass Stars with the Hobby
... it is much more efficient to utilize the power of the radial velocity (RV) method by exploiting the many narrow spectral lines of GK-giants, the descendants of the main sequence A-F type stars, sufficient to achieve a < 10 ms−1 RV measurement precision. The GK-giant surveys provide constraints on th ...
... it is much more efficient to utilize the power of the radial velocity (RV) method by exploiting the many narrow spectral lines of GK-giants, the descendants of the main sequence A-F type stars, sufficient to achieve a < 10 ms−1 RV measurement precision. The GK-giant surveys provide constraints on th ...
REVIEW FOR ASTRONOMY FINAL EXAM
... When does a full moon rise and set? When does a new moon rise and set? 6. Draw a diagram AND explain why we have seasons. 7. When can an eclipse happen? What are the relative locations of the Sun, earth, and Moon for either a solar eclipse, or a lunar eclipse? 8. Is astronomy or astrology a science? ...
... When does a full moon rise and set? When does a new moon rise and set? 6. Draw a diagram AND explain why we have seasons. 7. When can an eclipse happen? What are the relative locations of the Sun, earth, and Moon for either a solar eclipse, or a lunar eclipse? 8. Is astronomy or astrology a science? ...
Neutron Stars
... Upper mass limit of Neutron Stars • In Neutron stars the gravity is balanced by two forces. – Degenerate neutron pressure – Strong nuclear force. ...
... Upper mass limit of Neutron Stars • In Neutron stars the gravity is balanced by two forces. – Degenerate neutron pressure – Strong nuclear force. ...
Origins Of The Universe
... Red giant – star runs out of hydrogen and eventually swells then cools, finishing ‘life’ as a white dwarf Red super giant – very large stars run out of hydrogen and swell and then explode in a supernova, finishing ‘life’ as a neutron star or black hole ...
... Red giant – star runs out of hydrogen and eventually swells then cools, finishing ‘life’ as a white dwarf Red super giant – very large stars run out of hydrogen and swell and then explode in a supernova, finishing ‘life’ as a neutron star or black hole ...
Document
... • Can predict time and position of Sun during eclipse years in advance. • Measure the positions of stars SOHO spacecraft 6 months before when they are up at night. • During eclipse, measure their Result: Theory of Relativity confirmed! positions again. ...
... • Can predict time and position of Sun during eclipse years in advance. • Measure the positions of stars SOHO spacecraft 6 months before when they are up at night. • During eclipse, measure their Result: Theory of Relativity confirmed! positions again. ...
the young astronomers newsletter
... NASA’s mission to Jupiter, has taken its first high resolution photos of the surface. As it executes its polar orbits, it has been able to image the polar regions as never before. On August 27, it made its first close pass over the clouds at an altitude of about 2000 miles. Photos of the polar regio ...
... NASA’s mission to Jupiter, has taken its first high resolution photos of the surface. As it executes its polar orbits, it has been able to image the polar regions as never before. On August 27, it made its first close pass over the clouds at an altitude of about 2000 miles. Photos of the polar regio ...
Word
... Just as brightness is related to apparent magnitude, luminosity is related to a term called “absolute magnitude.” Astronomers refer to a star’s “absolute magnitude (M)” as the apparent magnitude it would have at an arbitrary standardized distance of 10 parsecs (i.e., 32.6 light-years). #2. Combine ...
... Just as brightness is related to apparent magnitude, luminosity is related to a term called “absolute magnitude.” Astronomers refer to a star’s “absolute magnitude (M)” as the apparent magnitude it would have at an arbitrary standardized distance of 10 parsecs (i.e., 32.6 light-years). #2. Combine ...
Student notes for first part of topic
... The universe began about 14 billion years ago At the beginning there was nothing more than a singularity -The singularity had no space but contained all the energy the universe would ever contain - The energy was in the form of gamma rays -The singularity expanded and continued to expand -The fi ...
... The universe began about 14 billion years ago At the beginning there was nothing more than a singularity -The singularity had no space but contained all the energy the universe would ever contain - The energy was in the form of gamma rays -The singularity expanded and continued to expand -The fi ...
An Introduction to the Night Sky Stars and Constellations
... An Introduction to the Night Sky Stars and Constellations 1. What is the Latin root word of star? 2. Why do stars “twinkle”? 3. Why do planets “shine”? ...
... An Introduction to the Night Sky Stars and Constellations 1. What is the Latin root word of star? 2. Why do stars “twinkle”? 3. Why do planets “shine”? ...
Midterm Review -- Astronomy Unit
... The early universe was mostly Hydrogen and Helium. Now there are at least 92 different elements on Earth. Where did all of the other elements (other than Hydrogen and helium) come from? a. How were the lighter elements created? These “lighter” elements include carbon, oxygen, nitrogen, phosphorus, i ...
... The early universe was mostly Hydrogen and Helium. Now there are at least 92 different elements on Earth. Where did all of the other elements (other than Hydrogen and helium) come from? a. How were the lighter elements created? These “lighter” elements include carbon, oxygen, nitrogen, phosphorus, i ...
Semester #1 – GeoScience Review Guide – Final Exam Scale
... 44. What is important about Hubble’s discovery that there is a red shift in the spectra of galaxies? 45. What object in space is so dense that even light can not escape? 46. Which type of spectrum is observed when studying the light radiation given off by most stars? 47. Where are the Blue stars loc ...
... 44. What is important about Hubble’s discovery that there is a red shift in the spectra of galaxies? 45. What object in space is so dense that even light can not escape? 46. Which type of spectrum is observed when studying the light radiation given off by most stars? 47. Where are the Blue stars loc ...
Integrative Studies 410 Our Place in the Universe
... • Often one is interested in how quantities change when an object or a system is enlarged or shortened • Different quantities will change by different factors! • Typical example: how does the circumference, surface, volume of a sphere change when its radius changes? ...
... • Often one is interested in how quantities change when an object or a system is enlarged or shortened • Different quantities will change by different factors! • Typical example: how does the circumference, surface, volume of a sphere change when its radius changes? ...
Patterns in the Night Sky Constellation: a grouping of stars, as
... Directly above the equator; appear motionless in the sky, which makes them useful for communications and other commercial industries because they can be linked to antennas on Earth. Communication industries use geostationary satellites for satellite broadcast television and radio. ...
... Directly above the equator; appear motionless in the sky, which makes them useful for communications and other commercial industries because they can be linked to antennas on Earth. Communication industries use geostationary satellites for satellite broadcast television and radio. ...
IK Pegasi
IK Pegasi (or HR 8210) is a binary star system in the constellation Pegasus. It is just luminous enough to be seen with the unaided eye, at a distance of about 150 light years from the Solar System.The primary (IK Pegasi A) is an A-type main-sequence star that displays minor pulsations in luminosity. It is categorized as a Delta Scuti variable star and it has a periodic cycle of luminosity variation that repeats itself about 22.9 times per day. Its companion (IK Pegasi B) is a massive white dwarf—a star that has evolved past the main sequence and is no longer generating energy through nuclear fusion. They orbit each other every 21.7 days with an average separation of about 31 million kilometres, or 19 million miles, or 0.21 astronomical units (AU). This is smaller than the orbit of Mercury around the Sun.IK Pegasi B is the nearest known supernova progenitor candidate. When the primary begins to evolve into a red giant, it is expected to grow to a radius where the white dwarf can accrete matter from the expanded gaseous envelope. When the white dwarf approaches the Chandrasekhar limit of 1.44 solar masses (M☉), it may explode as a Type Ia supernova.