the rest of the univ..
... A myriad of comets and other debris orbiting at distances up to ;;; complete our Solar System. The Kuiper Belt and The Oort Cloud In 1950 Jan Oort noticed that: 1.no comet has been observed with an orbit that indicates that it came from interstellar space. 2.there is a strong tendency for aphelia of ...
... A myriad of comets and other debris orbiting at distances up to ;;; complete our Solar System. The Kuiper Belt and The Oort Cloud In 1950 Jan Oort noticed that: 1.no comet has been observed with an orbit that indicates that it came from interstellar space. 2.there is a strong tendency for aphelia of ...
Correct answers shown in boldface. Be sure to write your name and
... b. they did not have photographic plates to detect very faint stars c. their telescopes were too small to see the whole system d. they needed infrared detectors e. they did not realize how interstellar dust cut off their view 33. When clumps of gas first collapse into young stars, their arrival on t ...
... b. they did not have photographic plates to detect very faint stars c. their telescopes were too small to see the whole system d. they needed infrared detectors e. they did not realize how interstellar dust cut off their view 33. When clumps of gas first collapse into young stars, their arrival on t ...
100 million years after the Big Bang
... • assembly of galaxy mass as a function of look-back time • Pair production SNe (massive stars) at MK = -23 • Young globular clusters with 106 year free fall times and M/L ...
... • assembly of galaxy mass as a function of look-back time • Pair production SNe (massive stars) at MK = -23 • Young globular clusters with 106 year free fall times and M/L ...
L8 Condensation
... nebula models we studied earlier, such a high temperature is reached very close to the star only, at least after the accretion rate of gas is no more very high. •For T<1000 K, all gas is molecular. From this we conclude that in most of the disk, we have H2, not H. •In our calculation, we have made a ...
... nebula models we studied earlier, such a high temperature is reached very close to the star only, at least after the accretion rate of gas is no more very high. •For T<1000 K, all gas is molecular. From this we conclude that in most of the disk, we have H2, not H. •In our calculation, we have made a ...
the galaxy in which we live - Cosmos
... galaxies will give us hints on how the Universe looked soon after the Big Bang. ...
... galaxies will give us hints on how the Universe looked soon after the Big Bang. ...
December 2010 Clear Skies Newsletter PDF
... the Sun and experiences summer while the other receives less energy and is shrouded in winter. Saturn’s equinox, when the Sun was directly over the equator, occurred in August 2009. In the study, Saturn’s seasons looked earthlike in another way: In each hemisphere, its effective temperature, which c ...
... the Sun and experiences summer while the other receives less energy and is shrouded in winter. Saturn’s equinox, when the Sun was directly over the equator, occurred in August 2009. In the study, Saturn’s seasons looked earthlike in another way: In each hemisphere, its effective temperature, which c ...
Worlds around red dwarfs
... 2. ICTP, Trieste and IDEA, Caracas, Bolivarian Republic of Venezuela ...
... 2. ICTP, Trieste and IDEA, Caracas, Bolivarian Republic of Venezuela ...
Why are Binary Stars so Important for the Theory
... modern model-simulation method by Wood. The two independent methods give consistent results and the radii of the two components are determined better than 1 %. The surface gravities are then also known very precisely (2 %). The temperature difference is small and weil defined. 80th of the components ...
... modern model-simulation method by Wood. The two independent methods give consistent results and the radii of the two components are determined better than 1 %. The surface gravities are then also known very precisely (2 %). The temperature difference is small and weil defined. 80th of the components ...
光學望遠鏡
... Observational astronomy is a division of the astronomical science that is concerned with getting data, in contrast with theoretical astrophysics, which is mainly concerned with finding out the measurable implications of physical models. It is the practice of observing celestial objects by using tele ...
... Observational astronomy is a division of the astronomical science that is concerned with getting data, in contrast with theoretical astrophysics, which is mainly concerned with finding out the measurable implications of physical models. It is the practice of observing celestial objects by using tele ...
Chapter 19. Mapping the Universe from Herschel to Sloan
... The key to understanding the nature of galaxies was to get their distances. In the mid1920’s telescopes were able to resolve individual stars in the closest galaxies, such as M31 (Andromeda Galaxy) and M33, but the star were too faint to obtain spectra which could be classified. Therefore, we did no ...
... The key to understanding the nature of galaxies was to get their distances. In the mid1920’s telescopes were able to resolve individual stars in the closest galaxies, such as M31 (Andromeda Galaxy) and M33, but the star were too faint to obtain spectra which could be classified. Therefore, we did no ...
Apr 2017 - Astronomical Society of Northern New England
... 15 meteors per hour, all emanating from the constellation of Lyra. These meteors are caused by the earth passing through the debris trail of Comet Thatcher. These tiny pieces of comet dust will be hitting our upper atmosphere at about 30 miles per second, leaving bright streaks. This is also Earth D ...
... 15 meteors per hour, all emanating from the constellation of Lyra. These meteors are caused by the earth passing through the debris trail of Comet Thatcher. These tiny pieces of comet dust will be hitting our upper atmosphere at about 30 miles per second, leaving bright streaks. This is also Earth D ...
PH607lec10
... formation event a few million years ago. The existence of these relatively young (though evolved) stars there was of a surprise to experts, who would have expected the tidal forces from the central black-hole to prevent their formation. They are much too young to have migrated far, but it seems even ...
... formation event a few million years ago. The existence of these relatively young (though evolved) stars there was of a surprise to experts, who would have expected the tidal forces from the central black-hole to prevent their formation. They are much too young to have migrated far, but it seems even ...
PH607 – Galaxies 2
... formation event a few million years ago. The existence of these relatively young (though evolved) stars there was of a surprise to experts, who would have expected the tidal forces from the central black-hole to prevent their formation. They are much too young to have migrated far, but it seems even ...
... formation event a few million years ago. The existence of these relatively young (though evolved) stars there was of a surprise to experts, who would have expected the tidal forces from the central black-hole to prevent their formation. They are much too young to have migrated far, but it seems even ...
NASA Programs and Budget Updates - Paul Hertz
... Directs NASA to (a) seek partners to restore SOFIA to its full level, and (b) not terminate missions without a Senior Review Includes $98M for Hubble operations, the same as FY14 Includes $38M for scientific ballooning, an increase of $5M (15%) from FY14 Includes $42M for Education SMD-wide ...
... Directs NASA to (a) seek partners to restore SOFIA to its full level, and (b) not terminate missions without a Senior Review Includes $98M for Hubble operations, the same as FY14 Includes $38M for scientific ballooning, an increase of $5M (15%) from FY14 Includes $42M for Education SMD-wide ...
May 2010 - Pomona Valley Amateur Astronomers
... Our speaker was member Matt Wedel, teacher of Anatomy at Western University of Health Sciences by day and amateur astronomer by night. We learned of the characteristics of meteor craters, a fairly new science dating only to the start of the 1900s when Daniel Barringer bought land around the crater t ...
... Our speaker was member Matt Wedel, teacher of Anatomy at Western University of Health Sciences by day and amateur astronomer by night. We learned of the characteristics of meteor craters, a fairly new science dating only to the start of the 1900s when Daniel Barringer bought land around the crater t ...
Dim Stars - granthamkuehl
... In our study of Stars The students will be able to Determine color, temp., brightness and Size of a star And show what they learned by Interpreting the HR Diagram ...
... In our study of Stars The students will be able to Determine color, temp., brightness and Size of a star And show what they learned by Interpreting the HR Diagram ...
Week8Lecture1
... Black Hole at the GC? These stars are very close to the galactic center. The orbit on the right is the best fit; it assumes a central black hole of 3.7 ...
... Black Hole at the GC? These stars are very close to the galactic center. The orbit on the right is the best fit; it assumes a central black hole of 3.7 ...
ASTR 101 Scale of the Universe: an Overview
... What is the shape of the milky way? Where is the Sun’s location in it? What is the estimated number of stars in the Milky way, what is its diameter? Can we see all of the Milky way galaxy from Earth? What is the reason we see Milky way as a luminous cloud? What is most distant object in the universe ...
... What is the shape of the milky way? Where is the Sun’s location in it? What is the estimated number of stars in the Milky way, what is its diameter? Can we see all of the Milky way galaxy from Earth? What is the reason we see Milky way as a luminous cloud? What is most distant object in the universe ...
of this release
... uncovered evidence for two possible planets in the system, and for a broad, outer ring of icy comets similar to our own Kuiper Belt. Now, Spitzer has discovered that the system also has dual asteroid belts. One sits at approximately the same position as the one in our solar system. The second, dense ...
... uncovered evidence for two possible planets in the system, and for a broad, outer ring of icy comets similar to our own Kuiper Belt. Now, Spitzer has discovered that the system also has dual asteroid belts. One sits at approximately the same position as the one in our solar system. The second, dense ...
Linking Asteroids and Meteorites through Reflectance Spectroscopy
... • Stars at the top above the main sequence are called Supergiants • Stars between the Supergiants and main sequence are called Giants • Stars below the Main Sequence are called White Dwarfs ...
... • Stars at the top above the main sequence are called Supergiants • Stars between the Supergiants and main sequence are called Giants • Stars below the Main Sequence are called White Dwarfs ...
Astronomy In the News Parallax Class demos: Parallax
... • Space measurements not affected by atmosphere ...
... • Space measurements not affected by atmosphere ...
Ch. 26.5 - (www.ramsey.k12.nj.us).
... Dark Matter Dark Matter = Does not give off radiation & cannot be detected Exerts gravitational force on visible matter Universe may be 90% + dark matter Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The ac ...
... Dark Matter Dark Matter = Does not give off radiation & cannot be detected Exerts gravitational force on visible matter Universe may be 90% + dark matter Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The ac ...
30galaxies and the universe
... An initial look at 30 galaxies indicates that black holes do not precede a galaxy’s birth, but instead evolve with the galaxy by trapping an amazingly exact percentage (0.2) of the mass of the stars and gas in a galaxy. Black holes in the centers of giant galaxies—some more than one billion solar ma ...
... An initial look at 30 galaxies indicates that black holes do not precede a galaxy’s birth, but instead evolve with the galaxy by trapping an amazingly exact percentage (0.2) of the mass of the stars and gas in a galaxy. Black holes in the centers of giant galaxies—some more than one billion solar ma ...
6th Grade Science Chapter 19 Jeopardy Game
... they are very similar to early galaxies. b. Distant galaxies share many characteristics with early galaxies. c. Distant galaxies have not changed as much as close galaxies, so they are most similar to early galaxies. d. Because it takes a long time for light to travel through space, looking at dista ...
... they are very similar to early galaxies. b. Distant galaxies share many characteristics with early galaxies. c. Distant galaxies have not changed as much as close galaxies, so they are most similar to early galaxies. d. Because it takes a long time for light to travel through space, looking at dista ...
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.