What Can We See in the Night Sky?
... Star Clusters • Groups of stars that are close together and travel together are known as star clusters • Star clusters are part of galaxies • Open clusters – contain about 50 to 1000 stars – dispersed along the Milky Way’s main band ...
... Star Clusters • Groups of stars that are close together and travel together are known as star clusters • Star clusters are part of galaxies • Open clusters – contain about 50 to 1000 stars – dispersed along the Milky Way’s main band ...
The Young Astronomers Newsletter Volume 22 Number 3 February
... a list of the most dangerous objects, but new observations have now shown that it is far less likely to hit the Earth than had been feared. ...
... a list of the most dangerous objects, but new observations have now shown that it is far less likely to hit the Earth than had been feared. ...
A search for planets around intermediate Mass Stars with the Hobby
... The steadily extending baselines of the ongoing surveys of post-MS giants should begin furnishing multiplanet system detections that are needed to study the dynamical evolution of planets around the main-sequence stars. The multiplicity of planetary systems around MS stars has been firmly establishe ...
... The steadily extending baselines of the ongoing surveys of post-MS giants should begin furnishing multiplanet system detections that are needed to study the dynamical evolution of planets around the main-sequence stars. The multiplicity of planetary systems around MS stars has been firmly establishe ...
NASA`s Kepler Space Telescope Discovers Five Exoplanets
... Kepler looks for the signatures of planets by measuring dips in the brightness of stars. When planets cross in front of, or transit, their stars as seen from Earth, they periodically block the starlight. The size of the planet can be derived from the size of the dip. The temperature can be estimated ...
... Kepler looks for the signatures of planets by measuring dips in the brightness of stars. When planets cross in front of, or transit, their stars as seen from Earth, they periodically block the starlight. The size of the planet can be derived from the size of the dip. The temperature can be estimated ...
Set 1
... shorter than the age of the Galaxy) and stellar luminosities L M 4, find the slope x such that equal numbers of stars are seen in a homogeneous isotropic region within equal logarithmic ranges of luminosity. What type of star dominates the counts if the slope x is flatter than this value? 6. The s ...
... shorter than the age of the Galaxy) and stellar luminosities L M 4, find the slope x such that equal numbers of stars are seen in a homogeneous isotropic region within equal logarithmic ranges of luminosity. What type of star dominates the counts if the slope x is flatter than this value? 6. The s ...
Space News Update – August 2015 By Pat Williams
... main survey mode. Gaia is an ESA mission to survey one billion stars in our galaxy and local galactic neighbourhood in order to build the most precise 3D map of the Milky Way and answer questions about its origin and evolution. Located at the Lagrange point L2, 1.5 million km from Earth, Gaia survey ...
... main survey mode. Gaia is an ESA mission to survey one billion stars in our galaxy and local galactic neighbourhood in order to build the most precise 3D map of the Milky Way and answer questions about its origin and evolution. Located at the Lagrange point L2, 1.5 million km from Earth, Gaia survey ...
Montage of Jupiter and the Galilean satellites
... Last year, our Sun went though Solar Maximum, the time in its 11-year cycle where the most sunspots and explosive activities occur. Sunspots, the Solar Cycle, and solar prominences are all caused by the Sun's changing magnetic field. Pictured above is a solar prominence that erupted on May 15, throw ...
... Last year, our Sun went though Solar Maximum, the time in its 11-year cycle where the most sunspots and explosive activities occur. Sunspots, the Solar Cycle, and solar prominences are all caused by the Sun's changing magnetic field. Pictured above is a solar prominence that erupted on May 15, throw ...
RIPL Radio Interferometric Planet Search
... Probes low mass, active stars that are difficult to study with RV method Planet fraction of low mass stars poorly determined Detects planets that can be studied with extreme AO Ties radio and optical astrometric reference frame ...
... Probes low mass, active stars that are difficult to study with RV method Planet fraction of low mass stars poorly determined Detects planets that can be studied with extreme AO Ties radio and optical astrometric reference frame ...
The Sun, Stars, and Beyond
... • There are spiral and barred spiral galaxies, • Irregularly shaped galaxies also exist, though fewer in number. • A galaxy’s shape is determined by its rate of spin, and if it has been subject to any collisions or mergers. • These all contain 100 billion stars or more, and there are 100 billion gal ...
... • There are spiral and barred spiral galaxies, • Irregularly shaped galaxies also exist, though fewer in number. • A galaxy’s shape is determined by its rate of spin, and if it has been subject to any collisions or mergers. • These all contain 100 billion stars or more, and there are 100 billion gal ...
Chapter 21
... The sun is a medium-sized star. Stars that are much larger than the sun are called ______________ or __________________. Composition – The chemical composition of most stars is about 73 % ______________ and 25 % ____________________. How can astronomers infer which elements are found in stars? ___ ...
... The sun is a medium-sized star. Stars that are much larger than the sun are called ______________ or __________________. Composition – The chemical composition of most stars is about 73 % ______________ and 25 % ____________________. How can astronomers infer which elements are found in stars? ___ ...
The Sun and Stardust
... very quickly. At the end of their life heavier (metals) are formed such as vanadium, chromium, manganese, iron, cobalt, and nickel etc. Then massive stars (about ten times more massive than the Sun ,or even heavier) burst into what is called a supernova, spreading all of the elements that formed thr ...
... very quickly. At the end of their life heavier (metals) are formed such as vanadium, chromium, manganese, iron, cobalt, and nickel etc. Then massive stars (about ten times more massive than the Sun ,or even heavier) burst into what is called a supernova, spreading all of the elements that formed thr ...
Slide 1
... Distance between stars in a galaxy About one parsec (defined later) One parsec is 3.26 light years ...
... Distance between stars in a galaxy About one parsec (defined later) One parsec is 3.26 light years ...
Is Anyone Out There? Solving the Drake Equation
... Ns = number of stars in the Galaxy fs-p = fraction of stars with planets fp-e= fraction of planets that are “earthlike” fp-l = fraction of “earthlike” planets that develop life fl-i = fraction of above that develop intelligence fi-c= fraction of above that develop communication Tc = lifetime of com ...
... Ns = number of stars in the Galaxy fs-p = fraction of stars with planets fp-e= fraction of planets that are “earthlike” fp-l = fraction of “earthlike” planets that develop life fl-i = fraction of above that develop intelligence fi-c= fraction of above that develop communication Tc = lifetime of com ...
Name: ____________________________ Date: _____________ Per. _________ Stars Study Guide (Ch. 21)
... 13. What is a graph that shows the relationship between absolute brightness and surface temperature of a star? __________________ ...
... 13. What is a graph that shows the relationship between absolute brightness and surface temperature of a star? __________________ ...
E1 Introduction to the Universe NEW
... Distance between stars in a galaxy About one parsec (defined later) One parsec is 3.26 light years ...
... Distance between stars in a galaxy About one parsec (defined later) One parsec is 3.26 light years ...
Uninhabitableearth
... Billion Years at http://www.newsy.com/videos/study-earth-will-be-uninhabitable-in-175-billion-years/ Re-watch the video in pairs and answer the questions on the worksheet at the end o this lesson plan. Form into small groups of four of five and discuss the following questions: What are the necessa ...
... Billion Years at http://www.newsy.com/videos/study-earth-will-be-uninhabitable-in-175-billion-years/ Re-watch the video in pairs and answer the questions on the worksheet at the end o this lesson plan. Form into small groups of four of five and discuss the following questions: What are the necessa ...
etlife_exoplanets - University of Glasgow
... Most planets we’ve found so far are ‘hot Jupiters’: gas giants, much bigger and closer to their parent star than the Earth is to the Sun. ...
... Most planets we’ve found so far are ‘hot Jupiters’: gas giants, much bigger and closer to their parent star than the Earth is to the Sun. ...
SPACE EXPLORATION UNIT
... If the real triangle and scale triangle have the same angles, then the ratio of triangle height to base is same for both. ...
... If the real triangle and scale triangle have the same angles, then the ratio of triangle height to base is same for both. ...
March 2017 - Shasta Astronomy Club
... aren’t solid objects and fade with distance from their centers. But it appears this object is roughly 300 light years across. That, in itself, is interesting. First, that’s tiny. Second, there are objects called globular clusters, which are magnificent collections of hundreds of thousands of stars i ...
... aren’t solid objects and fade with distance from their centers. But it appears this object is roughly 300 light years across. That, in itself, is interesting. First, that’s tiny. Second, there are objects called globular clusters, which are magnificent collections of hundreds of thousands of stars i ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... 847 and counting: that’s the number of planets confirmed as existing around 642 stars within several hundred light-years of our Sun. And more than 2,000 additional detections are awaiting confirmation by follow-up observations. By far, the most potential exoplanets have been found by the NASA spacec ...
... 847 and counting: that’s the number of planets confirmed as existing around 642 stars within several hundred light-years of our Sun. And more than 2,000 additional detections are awaiting confirmation by follow-up observations. By far, the most potential exoplanets have been found by the NASA spacec ...
The Great Observatories - Center for STEM Education
... from opposite parts of the sky -- and both were from over nine billion light years away, unleashed billions of years before the Sun and Earth formed. These represent the mission's first direct distance, or redshift, measurements, its latest milestone since being launched in November 2004. The distan ...
... from opposite parts of the sky -- and both were from over nine billion light years away, unleashed billions of years before the Sun and Earth formed. These represent the mission's first direct distance, or redshift, measurements, its latest milestone since being launched in November 2004. The distan ...
Pluto—Explored! and Views of Our Planets Forever
... The Pluto—Explored! souvenir sheet contains two stamp designs. One shows an artist’s rendering of the New Horizons spacecraft. The other shows the spacecraft’s striking image of Pluto taken near its closest approach. The view — which is color-enhanced to highlight surface texture and composition — i ...
... The Pluto—Explored! souvenir sheet contains two stamp designs. One shows an artist’s rendering of the New Horizons spacecraft. The other shows the spacecraft’s striking image of Pluto taken near its closest approach. The view — which is color-enhanced to highlight surface texture and composition — i ...
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.