The Universe and Galaxies - West Jefferson Local Schools
... undetectable mass that adds to the gravity of a galaxy - Dark energy – theoretical energy that might be causing accelerated expansion of the universe ...
... undetectable mass that adds to the gravity of a galaxy - Dark energy – theoretical energy that might be causing accelerated expansion of the universe ...
Background Science - Faulkes Telescope Project
... These high energy rays are emitted from the chemical elements in the gas, for example, from silicon, iron, magnesium, calcium etc. At such high temperatures, the electrons in these elements are ripped out of the atoms and emit X-rays. Using X-ray images of these objects, we can find out about the di ...
... These high energy rays are emitted from the chemical elements in the gas, for example, from silicon, iron, magnesium, calcium etc. At such high temperatures, the electrons in these elements are ripped out of the atoms and emit X-rays. Using X-ray images of these objects, we can find out about the di ...
PowerPoint File
... • Band brightest in the direction of Sagittarius • Band faintest in the direction of TaurusAuriga What’s the answer? ...
... • Band brightest in the direction of Sagittarius • Band faintest in the direction of TaurusAuriga What’s the answer? ...
originofsolarsystem
... Radiation Pressure – light from the Sun exerted pressure on the particles, pushing them out of the solar system. The Solar Wind – a flow of atoms from the Sun’s upper atmosphere also helped push particles out of the solar system. As planets moved through their orbits, they swept up any material in t ...
... Radiation Pressure – light from the Sun exerted pressure on the particles, pushing them out of the solar system. The Solar Wind – a flow of atoms from the Sun’s upper atmosphere also helped push particles out of the solar system. As planets moved through their orbits, they swept up any material in t ...
Chapter 28 – Stars and Galaxies
... larger star would be more luminous If the same size, hotter one would be brighter Types of magnitude Absolute – as if all stars were same distance from earth Apparent – as they appear in the nighttime sky ...
... larger star would be more luminous If the same size, hotter one would be brighter Types of magnitude Absolute – as if all stars were same distance from earth Apparent – as they appear in the nighttime sky ...
PowerPoint
... Average relative proper motion of lens and source star: μ=6±4mas/yr Resolution: •1.2x2.2μm/8.2m= 66mas (~80mass in VLT/NACO and Keck AO) •1.2x2.2μm/30m=18mass ...
... Average relative proper motion of lens and source star: μ=6±4mas/yr Resolution: •1.2x2.2μm/8.2m= 66mas (~80mass in VLT/NACO and Keck AO) •1.2x2.2μm/30m=18mass ...
Paul Lunn: Sonification Techniques for Astronomical Data Exploration
... N = number of advanced technological civilisations R = number of new stars formed each year fp = fraction of stars with planets ne = Number of planets that can support life fl = fraction of planets which have life fi = fraction of planets where life is intelligent fc = fraction of planets where life ...
... N = number of advanced technological civilisations R = number of new stars formed each year fp = fraction of stars with planets ne = Number of planets that can support life fl = fraction of planets which have life fi = fraction of planets where life is intelligent fc = fraction of planets where life ...
answers
... This class is about the characteristics of stars and more importantly, how we know what we know. 1) The Sun looks much brighter than all the other stars because it is so close. It seems to have a fairly average luminosity. Other stars have luminosities that are up to a million times greater and down ...
... This class is about the characteristics of stars and more importantly, how we know what we know. 1) The Sun looks much brighter than all the other stars because it is so close. It seems to have a fairly average luminosity. Other stars have luminosities that are up to a million times greater and down ...
Planets and Stars Differences and Similarities
... Planets the Solar System’s Best Friend In our Solar System there are 8 planets Mercury. Venus, Earth, Mars, Jupiter, Uranus, and Neptune. Theses planets in some ways are very similar to the stars but in other way they might be more different then you might think. In our solar system we have planets ...
... Planets the Solar System’s Best Friend In our Solar System there are 8 planets Mercury. Venus, Earth, Mars, Jupiter, Uranus, and Neptune. Theses planets in some ways are very similar to the stars but in other way they might be more different then you might think. In our solar system we have planets ...
A-105 Homework 1
... 13. (2 pts.) In the TV show Star Trek, the fastest the Enterprise can travel is warp 9 (1516 times the speed of light). How long would it take to travel from one end of the galaxy to the other moving at warp 9? What about from our solar system to the Galactic center? (Express your answers in the mos ...
... 13. (2 pts.) In the TV show Star Trek, the fastest the Enterprise can travel is warp 9 (1516 times the speed of light). How long would it take to travel from one end of the galaxy to the other moving at warp 9? What about from our solar system to the Galactic center? (Express your answers in the mos ...
characteristics of stars
... close even though they are separated by large distance. Most of the stars outside the bulge are arranged in long ____________, called _________ which curve around the bulge. The entire Milky Way rotates around this bulge. The Milky Way Galaxy is called a ____________galaxy because of its circular, s ...
... close even though they are separated by large distance. Most of the stars outside the bulge are arranged in long ____________, called _________ which curve around the bulge. The entire Milky Way rotates around this bulge. The Milky Way Galaxy is called a ____________galaxy because of its circular, s ...
How are stars and planets alike and different?
... A planet DOES NOT produce light of its own. That is why planets almost never twinkle, while stars do twinkle. You can see planets in the night sky because of the Sun’s light reflecting, or bouncing off, of them. ...
... A planet DOES NOT produce light of its own. That is why planets almost never twinkle, while stars do twinkle. You can see planets in the night sky because of the Sun’s light reflecting, or bouncing off, of them. ...
Star Groups and Big Bang Power Point
... All matter and energy in the early universe were compressed into a small volume at an extremely high temperature until the temperature cooled and all of the matter and energy were forced outward in all directions. ...
... All matter and energy in the early universe were compressed into a small volume at an extremely high temperature until the temperature cooled and all of the matter and energy were forced outward in all directions. ...
Goals of the day Clickers Order of Magnitude Astronomy
... A radio message from outer space arrived today which was sent from planet Buff on the day you were born. The friendly aliens sending you the birthday message live: ...
... A radio message from outer space arrived today which was sent from planet Buff on the day you were born. The friendly aliens sending you the birthday message live: ...
Lecture 11
... form a Black Hole of exactly 1 solar mass. What would happen to Earth’s orbit after the Sun became a Black Hole? ...
... form a Black Hole of exactly 1 solar mass. What would happen to Earth’s orbit after the Sun became a Black Hole? ...
arXiv:0712.2297v1 [astro
... Niedzielski et al. (2007). Briefly, we observe with the HET in its queue-scheduling mode and use the HRS at the R=60,000 resolution with the gas cell (I2 ) inserted in the optical path. In our target selection, we avoid bright objects, which are accessible to smaller telescopes. Consequently, more t ...
... Niedzielski et al. (2007). Briefly, we observe with the HET in its queue-scheduling mode and use the HRS at the R=60,000 resolution with the gas cell (I2 ) inserted in the optical path. In our target selection, we avoid bright objects, which are accessible to smaller telescopes. Consequently, more t ...
Study Guide Ch10,11 and 12
... 2. How is the mass of the Milky Way measured, and how does this lead to the concept of dark matter? 3. How are the spiral arms of the Milky Way detected, and what is their nature? 4. Discuss the reason for the differences between population I and population II stars. 5. Describe the characteristics ...
... 2. How is the mass of the Milky Way measured, and how does this lead to the concept of dark matter? 3. How are the spiral arms of the Milky Way detected, and what is their nature? 4. Discuss the reason for the differences between population I and population II stars. 5. Describe the characteristics ...
WOMEN OF ASTRONOMY
... person in the history of the world to see something or to understand something. Nothing can compare with that experience…” “The reward of the old scientist is the sense of having seen a vague sketch grow into a masterly landscape.” ...
... person in the history of the world to see something or to understand something. Nothing can compare with that experience…” “The reward of the old scientist is the sense of having seen a vague sketch grow into a masterly landscape.” ...
Goals of the day Clickers Order of Magnitude Astronomy
... A radio message from outer space arrived today which was sent from planet Buff on the day you were born. The friendly aliens sending you the birthday message live: ...
... A radio message from outer space arrived today which was sent from planet Buff on the day you were born. The friendly aliens sending you the birthday message live: ...
Space Interferometry Mission
The Space Interferometry Mission, or SIM, also known as SIM Lite (formerly known as SIM PlanetQuest), was a planned space telescope developed by the U.S. National Aeronautics and Space Administration (NASA), in conjunction with contractor Northrop Grumman. One of the main goals of the mission was the hunt for Earth-sized planets orbiting in the habitable zones of nearby stars other than the Sun. SIM was postponed several times and finally cancelled in 2010.In addition to hunting for extrasolar planets, SIM would have helped astronomers construct a map of the Milky Way galaxy. Other important tasks would have included collecting data to help pinpoint stellar masses for specific types of stars, assisting in the determination of the spatial distribution of dark matter in the Milky Way and in the Local Group of galaxies and using the gravitational microlensing effect to measure the mass of stars.The spacecraft would have used optical interferometry to accomplish these and other scientific goals. This technique collects light with multiple mirrors (in SIM's case, two) which is combined to make an interference pattern which can be very precisely measured.The initial contracts for SIM Lite were awarded in 1998, totaling US$200 million. Work on the SIM project required scientists and engineers to move through eight specific new technology milestones, and by November 2006, all eight had been completed.SIM Lite was originally scheduled for a 2005 launch, aboard an Evolved Expendable Launch Vehicle (EELV). As a result of continued budget cuts, the launch date has been pushed back at least five times. NASA has set a preliminary launch date for 2015 and U.S. federal budget documents confirm that a launch date is expected ""no earlier"" than 2015. The budget cuts to SIM Lite are expected to continue through FY 2010. As of February 2007, many of the engineers working on the SIM program had moved on to other areas and projects, and NASA directed the project to allocate its resources toward engineering risk reduction. However, the preliminary budget for NASA for 2008 included zero dollars for SIM.In December 2007, the Congress restored funding for fiscal year 2008 as part of an omnibus appropriations bill which the President later signed. At the same time the Congress directed NASA to move the mission forward to the development phase. In 2009 the project continued its risk reduction work while waiting for the findings and recommendations of the Astronomy and Astrophysics Decadal Survey, Astro2010, performed by the National Academy of Sciences, which would determine the project's future.On 13 August 2010, the Astro2010 Decadal Report was released and did not recommend that NASA continue the development of the SIM Lite Astrometric Observatory. This prompted NASA Astronomy and Physics Director, Jon Morse, to issue a letter on 24 September 2010 to the SIM Lite project manager, informing him that NASA was discontinuing its sponsorship of the SIM Lite mission and directing the project to discontinue Phase B activities immediately or as soon as practical. Accordingly, all SIM Lite activities were closed down by the end of calendar year 2010.