Diapositiva 1 - Yale University
... Mission facts Darwin will use a flotilla of six space telescopes, each of which will be at least 1.5 metres in diameter. They will work together to scan the nearby Universe, looking for signs of life on Earth-like planets. At optical wavelengths, a star outshines an Earth-like planet by a bill ...
... Mission facts Darwin will use a flotilla of six space telescopes, each of which will be at least 1.5 metres in diameter. They will work together to scan the nearby Universe, looking for signs of life on Earth-like planets. At optical wavelengths, a star outshines an Earth-like planet by a bill ...
Midterm II Jeopardy
... $200 - This planet occasionally has dust storms which obscure its ENTIRE surface. (Mars) $400 - You can only see these planets close to the horizon (45 degrees or less). (Venus & Mercury) $600 - This is how we observed the rings around Uranus. (Occultation) $800 - These two planets most closely rese ...
... $200 - This planet occasionally has dust storms which obscure its ENTIRE surface. (Mars) $400 - You can only see these planets close to the horizon (45 degrees or less). (Venus & Mercury) $600 - This is how we observed the rings around Uranus. (Occultation) $800 - These two planets most closely rese ...
Integrative Studies 410 Our Place in the Universe
... fusion and gravity are in balance – Duration ~ 10 billion years (much longer than all other stages combined) – Temperature ~ 15 million K at core, 6000 K at surface – Size ~ Sun ...
... fusion and gravity are in balance – Duration ~ 10 billion years (much longer than all other stages combined) – Temperature ~ 15 million K at core, 6000 K at surface – Size ~ Sun ...
Document
... 6. Speed of light and stellar distances • The speed of light is a universal constant (c) of 300,000 km/s2 • We observe stars millions/billions of light-years away • A light-year is the distance that light travels in 1 year – the light we see today from a star 500 light years away is 500 years old • ...
... 6. Speed of light and stellar distances • The speed of light is a universal constant (c) of 300,000 km/s2 • We observe stars millions/billions of light-years away • A light-year is the distance that light travels in 1 year – the light we see today from a star 500 light years away is 500 years old • ...
Chapter 24 Test:Stars/Galaxies
... The big bang theory of the formation and expansion of the universe is supported by the observed uniform and scaled _____. (a) shorter light wavelengths, (b) Doppler shift to blue-violet, (c) "big crunch", (d) Doppler shift to red. ...
... The big bang theory of the formation and expansion of the universe is supported by the observed uniform and scaled _____. (a) shorter light wavelengths, (b) Doppler shift to blue-violet, (c) "big crunch", (d) Doppler shift to red. ...
“Stages” of Imaging Systems
... “normal” imaging) – Distances between objects and Earth – Intrinsic “brightness” of object • generally very faint ⇒ large image collectors ...
... “normal” imaging) – Distances between objects and Earth – Intrinsic “brightness” of object • generally very faint ⇒ large image collectors ...
The History of Astronomy
... dominated thinking for 1800 years. • Earth is made up of only four elements: earth, water, air, and fire. • The celestial bodies were perfect and divine, and made of a fifth element called Aether. ...
... dominated thinking for 1800 years. • Earth is made up of only four elements: earth, water, air, and fire. • The celestial bodies were perfect and divine, and made of a fifth element called Aether. ...
Astronomy Week #1 Questions:
... 2. Why are light-years more convenient than miles, kilometers, or astronomical units for measuring certain distances? 3. The diameter of Earth is 7928 mi. What is its diameter in inches? In yards? 4. 1 astronomical unit is about 150,000,000 km. Venus orbits 0.7 AU from the sun. What is that distance ...
... 2. Why are light-years more convenient than miles, kilometers, or astronomical units for measuring certain distances? 3. The diameter of Earth is 7928 mi. What is its diameter in inches? In yards? 4. 1 astronomical unit is about 150,000,000 km. Venus orbits 0.7 AU from the sun. What is that distance ...
PowerPoint - Chandra X
... NGC 7027: NASA/STScI/Caltech/J.Westphal & W.Latter; Mz3: NASA/STScI/Univ. Washington/B.Balick ...
... NGC 7027: NASA/STScI/Caltech/J.Westphal & W.Latter; Mz3: NASA/STScI/Univ. Washington/B.Balick ...
What can Spectroscopy tell us
... and their respective absorption and emission spectra in the visible portion of the spectrum. ...
... and their respective absorption and emission spectra in the visible portion of the spectrum. ...
A search for planets around intermediate Mass Stars with the Hobby
... planets) are added to the current model. K2-giant BD +20 2457 is well modeled by two Keplerian orbits with the periods of 379 and 621 days, 1.4 and 1.9 AU semi-major axes, and the respective eccentricities of 0.14 and 0.18. For the estimated stellar mass of 2.8 M , the minimum masses of the orbitin ...
... planets) are added to the current model. K2-giant BD +20 2457 is well modeled by two Keplerian orbits with the periods of 379 and 621 days, 1.4 and 1.9 AU semi-major axes, and the respective eccentricities of 0.14 and 0.18. For the estimated stellar mass of 2.8 M , the minimum masses of the orbitin ...
1.1 Stars in the Broader Context of Modern Astro
... • ‘The epoch of reionisation’, which has been described as the ‘last frontier in observational cosmology’ marks the period—approximately 600 million years after the Big Bang—when the Universe experienced its last ‘phase-change’: it changed from being mostly neutral to being mostly ionised (see Figur ...
... • ‘The epoch of reionisation’, which has been described as the ‘last frontier in observational cosmology’ marks the period—approximately 600 million years after the Big Bang—when the Universe experienced its last ‘phase-change’: it changed from being mostly neutral to being mostly ionised (see Figur ...
planetary support for the role of natural variability in climate
... A series of papers released showing a global warming on other planets points towards the role of the sun in our recent climate change supported by US data. NEPTUNE'S MOON TRITON According to Massachusetts Institute of Technology astronomer James L. Elliot and his colleagues from MIT, Lowell Observat ...
... A series of papers released showing a global warming on other planets points towards the role of the sun in our recent climate change supported by US data. NEPTUNE'S MOON TRITON According to Massachusetts Institute of Technology astronomer James L. Elliot and his colleagues from MIT, Lowell Observat ...
The Milky Way - Computer Science Technology
... Galileo’s telescope that revealed amazing things about the moon, Jupiter, and Venus. Now you can consider the telescopes, instruments, and techniques of modern astronomers. Telescopes gather and focus light, so you need to study what light is, and how it behaves, on your way to understanding how tel ...
... Galileo’s telescope that revealed amazing things about the moon, Jupiter, and Venus. Now you can consider the telescopes, instruments, and techniques of modern astronomers. Telescopes gather and focus light, so you need to study what light is, and how it behaves, on your way to understanding how tel ...
Reflecting Telescopes
... • A curved mirror can focus light to a point. • A perfect parabolic mirror has a focal length like a lens. – All frequencies focused to the same point ...
... • A curved mirror can focus light to a point. • A perfect parabolic mirror has a focal length like a lens. – All frequencies focused to the same point ...
Webb Space Telescope’s mirror are mounted for testing in an ultracold
... All this involves unprecedented technical risks. Because of the telescope’s remote perch, no astronaut will be able to fix it if something goes wrong. Unlike with the Hubble, which has had several repairs and upgrades throughout the two decades it has been in operation, there will be no do-overs, no ...
... All this involves unprecedented technical risks. Because of the telescope’s remote perch, no astronaut will be able to fix it if something goes wrong. Unlike with the Hubble, which has had several repairs and upgrades throughout the two decades it has been in operation, there will be no do-overs, no ...
Introduction to Space
... ~Venus is the brightest object in the sky after the Sun and moon, and is usually visible just before sunrise or after sunset as a bright “star” low in the sky ~Mars, Jupiter and Saturn are also easily visible to the unaided eyes (without telescope), and Mercury is visible as well, although it is muc ...
... ~Venus is the brightest object in the sky after the Sun and moon, and is usually visible just before sunrise or after sunset as a bright “star” low in the sky ~Mars, Jupiter and Saturn are also easily visible to the unaided eyes (without telescope), and Mercury is visible as well, although it is muc ...
3.2dl Apparent motion of stars
... towards the west. Eventually, as it is not circumpolar, it will sink below the horizon. Other stars of the Zodiac track in similar fashion and whilst Leo disappears from view, Virgo may still be seen. ...
... towards the west. Eventually, as it is not circumpolar, it will sink below the horizon. Other stars of the Zodiac track in similar fashion and whilst Leo disappears from view, Virgo may still be seen. ...
Celestial Objects
... Evidence for the Big Bang a) red shiftshift- shift toward longer red wavelengths of energy showing that an object is moving AWAY from Earth 1) the farther away the galaxy, the greater the red shift 2) almost all galaxies show a red shiftshiftproof that the universe is expanding (Edwin Hubble was th ...
... Evidence for the Big Bang a) red shiftshift- shift toward longer red wavelengths of energy showing that an object is moving AWAY from Earth 1) the farther away the galaxy, the greater the red shift 2) almost all galaxies show a red shiftshiftproof that the universe is expanding (Edwin Hubble was th ...
Export To Word
... Description Our star, the Sun, is an ordinary star. It is not particularly special compared to other stars in the universe; however, it is crucially important to us. As the massive energy source at the center of our solar system, the Sun is responsible for Earth's climate, weather, and life. In this ...
... Description Our star, the Sun, is an ordinary star. It is not particularly special compared to other stars in the universe; however, it is crucially important to us. As the massive energy source at the center of our solar system, the Sun is responsible for Earth's climate, weather, and life. In this ...
About SDSS - Astro Projects
... The further away that we look, the fainter these galaxies appear to us, and the larger the telescopes, and the longer the exposure times needed to see them. Fortunately, modern telescopes no longer need to rely on the human eye looking through an eyepiece. Instead they use electronic detectors ('CCD ...
... The further away that we look, the fainter these galaxies appear to us, and the larger the telescopes, and the longer the exposure times needed to see them. Fortunately, modern telescopes no longer need to rely on the human eye looking through an eyepiece. Instead they use electronic detectors ('CCD ...
ASTRONOMY 0089: EXAM 1 Class Meets M,W,F, 1:00 PM Feb 12
... 25. The reason that the primary mirror of an astronomical telescope is often polished to a parabolic shape is a. to avoid chromatic aberration which would be produced by a spherical mirror. b. because it is easier to produce than a spherically shaped mirror. c. to avoid spherical aberration by brin ...
... 25. The reason that the primary mirror of an astronomical telescope is often polished to a parabolic shape is a. to avoid chromatic aberration which would be produced by a spherical mirror. b. because it is easier to produce than a spherically shaped mirror. c. to avoid spherical aberration by brin ...
Quentin Parker Lecture 1b - PowerPoint file.
... telescope reached regardless of atmospheric stability though obviously the higher the observatory is situated the less atmosphere there is to contend with. Note also that the final resolution in an astronomical image is determined by the resolution of the detector used to record the image and the ac ...
... telescope reached regardless of atmospheric stability though obviously the higher the observatory is situated the less atmosphere there is to contend with. Note also that the final resolution in an astronomical image is determined by the resolution of the detector used to record the image and the ac ...
Ay122a Final Exam – Fall 2012
... 1. Ground vs Space. Discuss the advantages and disadvantages of near-IR imaging (1-2.5 microns) in space versus the ground. In the era of JWST, will there be a place for ground-based imaging and spectroscopy in that wavelength range? What will it be? 2. Astronomical Detectors. Explain the difference ...
... 1. Ground vs Space. Discuss the advantages and disadvantages of near-IR imaging (1-2.5 microns) in space versus the ground. In the era of JWST, will there be a place for ground-based imaging and spectroscopy in that wavelength range? What will it be? 2. Astronomical Detectors. Explain the difference ...
International Ultraviolet Explorer
The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.