SPACE Section 8-STARS- OBSERVING CONSTELLATIONS
... appear to move across the sky nightly, and different stars can be seen at different seasons. Students know telescopes magnify the appearance of some distant objects in the sky, including the Moon and the planets. The number of stars that can be seen through telescopes is dramatically greater than th ...
... appear to move across the sky nightly, and different stars can be seen at different seasons. Students know telescopes magnify the appearance of some distant objects in the sky, including the Moon and the planets. The number of stars that can be seen through telescopes is dramatically greater than th ...
The Milky Way Galaxy (ch. 23)
... There are two kinds of variable stars (their apparent brightness varies periodically because they are pulsating) that are used as “standard candles” for distance estimates: a. RR Lyrae stars—all have similar light curves, periods 0.5 to 1 day (23.5), and all have approximately the same luminosity! ( ...
... There are two kinds of variable stars (their apparent brightness varies periodically because they are pulsating) that are used as “standard candles” for distance estimates: a. RR Lyrae stars—all have similar light curves, periods 0.5 to 1 day (23.5), and all have approximately the same luminosity! ( ...
MAPLE: Reflected Light from Exoplanets with a 50
... 1/100,000 of the parent star. However, all of these planetary systems are believed to be too young, being less than one hundred million years old, to host any kind of life. In mature planetary systems, i.e. greater than one billion years old, such as our Sun and most of the stars in the solar neighb ...
... 1/100,000 of the parent star. However, all of these planetary systems are believed to be too young, being less than one hundred million years old, to host any kind of life. In mature planetary systems, i.e. greater than one billion years old, such as our Sun and most of the stars in the solar neighb ...
The Milky Way
... Binary Stars More than 50 % of all stars in our Milky Way are not single stars, but belong to binaries: Pairs or multiple systems of stars which orbit their common center of mass. If we can measure and understand their orbital motion, we can estimate the stellar ...
... Binary Stars More than 50 % of all stars in our Milky Way are not single stars, but belong to binaries: Pairs or multiple systems of stars which orbit their common center of mass. If we can measure and understand their orbital motion, we can estimate the stellar ...
lec-galatic-observat..
... Late last century, a disk theory was nearly abandoned before the improvement in telescopes and photography. It was thought that the dark rifts (as in the Aquila frame) in the Milky Way and dark patches (such as the Coal Sack) indicated an absence of stars and that, if within a disk arrangement, it w ...
... Late last century, a disk theory was nearly abandoned before the improvement in telescopes and photography. It was thought that the dark rifts (as in the Aquila frame) in the Milky Way and dark patches (such as the Coal Sack) indicated an absence of stars and that, if within a disk arrangement, it w ...
Modern Telescopes and Ancient Skies
... orbits a brown dwarf “star” at a distance of about 55 AU (the star and planet are about 200 light years away) ...
... orbits a brown dwarf “star” at a distance of about 55 AU (the star and planet are about 200 light years away) ...
Imaging extrasolar planets
... down into their atmospheres and infer their chemical compoThese theoretical models become increasingly uncertain at sition, temperatures, pressures, and cloud properties by very young ages because the exact initial conditions of how studying their brightness at different wavelengths. This spring the ...
... down into their atmospheres and infer their chemical compoThese theoretical models become increasingly uncertain at sition, temperatures, pressures, and cloud properties by very young ages because the exact initial conditions of how studying their brightness at different wavelengths. This spring the ...
SUMSS - 京都大学
... light, because gravity is so strong. First postulated in 1783 by English geologist John Michell, term “black hole” coined in 1969. ...
... light, because gravity is so strong. First postulated in 1783 by English geologist John Michell, term “black hole” coined in 1969. ...
Spiral Galaxies - Astronomy Centre
... Nature of the Nebulae • We now know that Kant was correct • Our Milky Way Galaxy is just one of Kant’s island universes, which are now referred to as galaxies • The word Universe now refers to the full expanse of space and its contents • While most diffuse nebulae are nearby clouds of gas and dust ...
... Nature of the Nebulae • We now know that Kant was correct • Our Milky Way Galaxy is just one of Kant’s island universes, which are now referred to as galaxies • The word Universe now refers to the full expanse of space and its contents • While most diffuse nebulae are nearby clouds of gas and dust ...
TF_final3 - Arecibo Observatory
... The purpose of this research was to study the LIRGs (Luminous Infrared Galaxies) and see if they follow the Tully-Fisher relation. The LIRGs are different to normal galaxies in the fact that they emit 90% of their light i in infrared. The TullyFisher relation states that the bigger the galaxy is, th ...
... The purpose of this research was to study the LIRGs (Luminous Infrared Galaxies) and see if they follow the Tully-Fisher relation. The LIRGs are different to normal galaxies in the fact that they emit 90% of their light i in infrared. The TullyFisher relation states that the bigger the galaxy is, th ...
OUR SOLAR SYSTEM
... Our planet Earth is now under observation by DSCOVR, a joint project by NASA, the U.S. Air Force, and the National Oceanic and Atmospheric Administration, designed to monitor the solar wind in real time. Visually stunning images like this one, taken from a million miles away, are a bonus. NASA ...
... Our planet Earth is now under observation by DSCOVR, a joint project by NASA, the U.S. Air Force, and the National Oceanic and Atmospheric Administration, designed to monitor the solar wind in real time. Visually stunning images like this one, taken from a million miles away, are a bonus. NASA ...
NASA FUSE Satellite Solves the Case of the Missing Deuterium
... computer models that showed how deuterium, compared to hydrogen, might preferentially bind to interstellar dust grains, changing from an easily detectable gaseous form to an unobservable solid form. The new FUSE data strongly support this theory. In regions that remain undisturbed for long periods, ...
... computer models that showed how deuterium, compared to hydrogen, might preferentially bind to interstellar dust grains, changing from an easily detectable gaseous form to an unobservable solid form. The new FUSE data strongly support this theory. In regions that remain undisturbed for long periods, ...
The Extragalactic Distance Database: Color–Magnitude Diagrams
... put from HSTPHOT or DOLPHOT. These tables hold information about the measurement of a single star per row. There are, among others, columns that describe a star’s position on the image, and its apparent magnitude in both flight and groundbased filters, as well as several characterizations of the qua ...
... put from HSTPHOT or DOLPHOT. These tables hold information about the measurement of a single star per row. There are, among others, columns that describe a star’s position on the image, and its apparent magnitude in both flight and groundbased filters, as well as several characterizations of the qua ...
Document
... If we know the period of the planet’s orbit, we can use the width of brightness dip to relate RP , via Kepler’s laws, to the mass of the star. So, if we observe both a transit and a Doppler wobble for the same planet, we can constrain the mass and radius of both the planet and its parent star. ...
... If we know the period of the planet’s orbit, we can use the width of brightness dip to relate RP , via Kepler’s laws, to the mass of the star. So, if we observe both a transit and a Doppler wobble for the same planet, we can constrain the mass and radius of both the planet and its parent star. ...
Measuring Distances - Stockton University
... galaxies that appear to be at about the same distance but are spread out a lot in the velocity direction. • This feature suggests the presence of a large cluster of galaxies, like the Virgo Cluster. • In addition to their "Hubble velocities", these galaxies have an extra velocity caused by their orb ...
... galaxies that appear to be at about the same distance but are spread out a lot in the velocity direction. • This feature suggests the presence of a large cluster of galaxies, like the Virgo Cluster. • In addition to their "Hubble velocities", these galaxies have an extra velocity caused by their orb ...
Unpublished draft available in format
... etc.; by spectral type - blue, white, etc.; by other radiation phenomena - variable, quasar, etc.). if any astronomer users of the schedule think that a more helpful citation order could be achieved than that in this draft, we would welcome their comment. ...
... etc.; by spectral type - blue, white, etc.; by other radiation phenomena - variable, quasar, etc.). if any astronomer users of the schedule think that a more helpful citation order could be achieved than that in this draft, we would welcome their comment. ...
Scientific Strategic Plan 2009
... led by WMKO community members should be solicited as part of the annual call for instrument concept studies. One or two new instrument concept or upgrade studies should be supported at the level of $100K per year. •The timely design, fabrication and deployment of NGAO are essential to maximize the s ...
... led by WMKO community members should be solicited as part of the annual call for instrument concept studies. One or two new instrument concept or upgrade studies should be supported at the level of $100K per year. •The timely design, fabrication and deployment of NGAO are essential to maximize the s ...
Types of Stars http://space.about.com/od/stars/tp/What-Are
... star is a system of two stars that are gravitationally bound to each other. They orbit around a common point, called the center of mass. It is estimated that about half of all the stars in our galaxy are part of a binary system. Visual binaries can be seen as two separate stars through a telescope. ...
... star is a system of two stars that are gravitationally bound to each other. They orbit around a common point, called the center of mass. It is estimated that about half of all the stars in our galaxy are part of a binary system. Visual binaries can be seen as two separate stars through a telescope. ...
From Dust to Planets - International Space Science Institute
... formation model outlined above for two major reasons. First, the mass of typical proto-planetary disk within the orbit of the closest objects observed would not amount to a jupiter mass by a large factor even assuming 100 % efficiency in collecting the matter. Second, even if there was sufficient ma ...
... formation model outlined above for two major reasons. First, the mass of typical proto-planetary disk within the orbit of the closest objects observed would not amount to a jupiter mass by a large factor even assuming 100 % efficiency in collecting the matter. Second, even if there was sufficient ma ...
Star Powerpoint notes
... wavelength. The range of visible wavelengths is indicated. Where the peak of a star’s intensity curve lies relative to the visible light band determines the apparent color of its visible light. ...
... wavelength. The range of visible wavelengths is indicated. Where the peak of a star’s intensity curve lies relative to the visible light band determines the apparent color of its visible light. ...
The search for Earth-like planets - Creation Ministries International
... extrasolar planets. Kepler has only recently undergone initial tests by aiming it at a known extrasolar planet whose star is called HAT-P-7. Scientists are quite excited by the high quality data that will be available from Kepler. Initial tests show the spacecraft is working quite well. The Kepler s ...
... extrasolar planets. Kepler has only recently undergone initial tests by aiming it at a known extrasolar planet whose star is called HAT-P-7. Scientists are quite excited by the high quality data that will be available from Kepler. Initial tests show the spacecraft is working quite well. The Kepler s ...
Abstract - The University of Akron
... eventually became 'space junk' after their lives ended and they each settled into individual heliocentric orbits to remain until the end of time. The two Pioneers, however, were given subsequent missions after their primary functions were complete. As long as they remained working and able to commun ...
... eventually became 'space junk' after their lives ended and they each settled into individual heliocentric orbits to remain until the end of time. The two Pioneers, however, were given subsequent missions after their primary functions were complete. As long as they remained working and able to commun ...
Integrative Studies 410 Our Place in the Universe
... • Mira (=wonderful, lat.) [o Ceti]: sometimes visible with bare eye, sometimes faint • Long period variable star: 332 days period • Cool red giants • Sometimes periodic, sometimes irregular • some eject gas into space ...
... • Mira (=wonderful, lat.) [o Ceti]: sometimes visible with bare eye, sometimes faint • Long period variable star: 332 days period • Cool red giants • Sometimes periodic, sometimes irregular • some eject gas into space ...
Article Reference - Archive ouverte UNIGE
... that, because no hot Jupiter was known to orbit an M dwarf, their occurrence must therefore be lower. Not long afterwards, Johnson et al. (2012) announced the discovery of a transiting gas giant around a star observed by Kepler, KOI-254, describing it as a “lone example [...] for some time to come”. ...
... that, because no hot Jupiter was known to orbit an M dwarf, their occurrence must therefore be lower. Not long afterwards, Johnson et al. (2012) announced the discovery of a transiting gas giant around a star observed by Kepler, KOI-254, describing it as a “lone example [...] for some time to come”. ...
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.