C H A P T E R 2
... during the daylight hours as well, while still showing the blue sky of day. Next click on the tool bar icon to view the eastern horizon. You can observe the general motion of objects as they rise at your location. Do this also looking at the south and west horizons. You can also demonstrate the effe ...
... during the daylight hours as well, while still showing the blue sky of day. Next click on the tool bar icon to view the eastern horizon. You can observe the general motion of objects as they rise at your location. Do this also looking at the south and west horizons. You can also demonstrate the effe ...
five minute episode script
... The Big Dipper is only the rear end, and long tail of the bear, while other, fainter stars mark his head and feet. Astronomers don’t just stop there. To them everything within this boundary - every star, every deep space object is part of the constellation Ursa Major. DEAN: Wow, that’s a Big Bear. ( ...
... The Big Dipper is only the rear end, and long tail of the bear, while other, fainter stars mark his head and feet. Astronomers don’t just stop there. To them everything within this boundary - every star, every deep space object is part of the constellation Ursa Major. DEAN: Wow, that’s a Big Bear. ( ...
this PDF file - University of Leicester Open Journals
... had predicted was finally directly observed. The star is too faint to be seen without a powerful telescope. The bright star we can see is called Sirius A and the companion star predicted by Bessel is Sirius B – a white dwarf, so called due to its small size and white hot glow. The existence of this ...
... had predicted was finally directly observed. The star is too faint to be seen without a powerful telescope. The bright star we can see is called Sirius A and the companion star predicted by Bessel is Sirius B – a white dwarf, so called due to its small size and white hot glow. The existence of this ...
Lecture 4a - University of Rochester
... system objects • For objects outside the solar system, the absolute magnitude, M, is that which you would detect if the object was 10pc away. • For solar system objects, the absolute magnitude, H, is the magnitude of the object, at 1AU away, at zero phase angle. • Phase angle is the angle measured a ...
... system objects • For objects outside the solar system, the absolute magnitude, M, is that which you would detect if the object was 10pc away. • For solar system objects, the absolute magnitude, H, is the magnitude of the object, at 1AU away, at zero phase angle. • Phase angle is the angle measured a ...
Final Exam - Practice questions for Unit V
... the smaller its radius when on the main sequence. ...
... the smaller its radius when on the main sequence. ...
Star - Astrophysics
... These stellar explosions are extremely luminous, with absolute magnitudes MB around -16 to -20, the same as a whole small to moderate sized galaxy. Most are seen in external galaxies (e.g. SN1987A in the Large Magellanic Cloud). We expect around 1 every 30 years in our Galaxy, though none has been s ...
... These stellar explosions are extremely luminous, with absolute magnitudes MB around -16 to -20, the same as a whole small to moderate sized galaxy. Most are seen in external galaxies (e.g. SN1987A in the Large Magellanic Cloud). We expect around 1 every 30 years in our Galaxy, though none has been s ...
Death of High Mass Stars
... galaxy (billions of stars) for a few days • Some of the energy creates elements heavier than iron. These elements are distributed to the rest of the galaxy. ...
... galaxy (billions of stars) for a few days • Some of the energy creates elements heavier than iron. These elements are distributed to the rest of the galaxy. ...
Lecture 11
... that we observe a supernova that appears to be 5 x 10-15 watts. How far away is it? Express your answer in meters and in ...
... that we observe a supernova that appears to be 5 x 10-15 watts. How far away is it? Express your answer in meters and in ...
WARM-UP # 32 Which planets are the terrestrial planets and which
... which planets are the gas planets? What are three of their primary differences? The terrestrial planets are made of rock, smaller, closer together, do not have rings, and are closer to the sun. ...
... which planets are the gas planets? What are three of their primary differences? The terrestrial planets are made of rock, smaller, closer together, do not have rings, and are closer to the sun. ...
Be Stars
... B-type stars with understrength helium lines and strong hydrogen spectra. Other chemically strange B-types stars are mercury–manganese stars. Finally, there are Be stars that show a prominent emission spectrum of hydrogen this is because they have a rapid rate of rotation, with an equatorial rotatio ...
... B-type stars with understrength helium lines and strong hydrogen spectra. Other chemically strange B-types stars are mercury–manganese stars. Finally, there are Be stars that show a prominent emission spectrum of hydrogen this is because they have a rapid rate of rotation, with an equatorial rotatio ...
What do “yellowballs” have to do with the birth of new stars?
... shown in the right panel of Figure 3. After a few million years the bubble itself will disperse into the general interstellar medium, leaving behind the newly formed stars that will, in turn, become part of the disk of the Milky Way Galaxy. ...
... shown in the right panel of Figure 3. After a few million years the bubble itself will disperse into the general interstellar medium, leaving behind the newly formed stars that will, in turn, become part of the disk of the Milky Way Galaxy. ...
Lab 4
... Photometry is the determination and use of the color spectrum of astronomical objects to determine the objects’ properties. Two properties you will investigate later are distance and age. The objects you will use are stars in various clusters in the Milky Way galaxy and beyond. This is known as the ...
... Photometry is the determination and use of the color spectrum of astronomical objects to determine the objects’ properties. Two properties you will investigate later are distance and age. The objects you will use are stars in various clusters in the Milky Way galaxy and beyond. This is known as the ...
Binary star formation
... What about three star interactions, or binary + single star encounters? ...
... What about three star interactions, or binary + single star encounters? ...
Powerpoint file
... • White Dwarf stars are extremely small (radius ~ Earth) • Their mass is comparable to the sun, so they are extremely dense • Radial velocity impossible on such broad spectral lines • Observing planetary transits is improbable • Imaging studies have so far been unsuccessful • White Dwarf stars provi ...
... • White Dwarf stars are extremely small (radius ~ Earth) • Their mass is comparable to the sun, so they are extremely dense • Radial velocity impossible on such broad spectral lines • Observing planetary transits is improbable • Imaging studies have so far been unsuccessful • White Dwarf stars provi ...
Target Stars for Earth-like Planet Searches with the Terrestrial
... studies are underway to develop concepts and plans for the Terrestrial Planet Finder (TPF) space mission (see Beichman et al., 1999: "Terrestrial Planet Finder"). TPF, like other missions in the early planning stages, aims to search selected nearby stars for the existence of terrestrial planets, and ...
... studies are underway to develop concepts and plans for the Terrestrial Planet Finder (TPF) space mission (see Beichman et al., 1999: "Terrestrial Planet Finder"). TPF, like other missions in the early planning stages, aims to search selected nearby stars for the existence of terrestrial planets, and ...
No Slide Title
... • We learn about stars by studying energy. – Stars produce a full range of electromagnetic radiation, from high-energy X-rays to low-energy radio waves. – Scientists use optical telescopes to study visible light and radio telescopes to study radio waves emitted from astronomical objects. – Earth’s a ...
... • We learn about stars by studying energy. – Stars produce a full range of electromagnetic radiation, from high-energy X-rays to low-energy radio waves. – Scientists use optical telescopes to study visible light and radio telescopes to study radio waves emitted from astronomical objects. – Earth’s a ...
GEARS Workshop Monday - Georgia Southern University
... camera radius (from geometry and knowing distance) to get temperature of the sun as blackbody • We used Wien’s Law model for peak wavelength of blackbody emitter using the temperature ...
... camera radius (from geometry and knowing distance) to get temperature of the sun as blackbody • We used Wien’s Law model for peak wavelength of blackbody emitter using the temperature ...
Lecture 13 - Star Formation
... • Dark nebula are usually molecular clouds • Molecular clouds are relatively dense and are very cold, often only 10 K. • Giant molecular clouds can contain as much as 104 solar masses of gas and be 10 light years across. • Molecular clouds are the primary sites for star formation. ...
... • Dark nebula are usually molecular clouds • Molecular clouds are relatively dense and are very cold, often only 10 K. • Giant molecular clouds can contain as much as 104 solar masses of gas and be 10 light years across. • Molecular clouds are the primary sites for star formation. ...
2. A giant hand took one of the planets discovered
... 2. A giant hand took one of the planets discovered around other stars and put it in the solar system at the same distance from the sun as from its star. The mass of the planet is approximately that of Jupiter and the orbit is approximately that of Earth. These are the “hot Jupiters”, as big as Jupit ...
... 2. A giant hand took one of the planets discovered around other stars and put it in the solar system at the same distance from the sun as from its star. The mass of the planet is approximately that of Jupiter and the orbit is approximately that of Earth. These are the “hot Jupiters”, as big as Jupit ...
chapter 2
... A star speckled night sky filled the minds of men with awe, not only in the past but also at present. From the ancient time, man has observed stars and planets appearing in the night sky and he has come up with various theories about them. Accordingly, astronomy can be considered as the oldest scien ...
... A star speckled night sky filled the minds of men with awe, not only in the past but also at present. From the ancient time, man has observed stars and planets appearing in the night sky and he has come up with various theories about them. Accordingly, astronomy can be considered as the oldest scien ...
Cygnus (constellation)
Cygnus /ˈsɪɡnəs/ is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. The swan is one of the most recognizable constellations of the northern summer and autumn, it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.Cygnus contains Deneb, one of the brightest stars in the night sky and one corner of the Summer Triangle, as well as some notable X-ray sources and the giant stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a black hole. Many star systems in Cygnus have known planets as a result of the Kepler Mission observing one patch of the sky, the patch is the area around Cygnus. In addition, most of the eastern part of Cygnus is dominated by the Hercules–Corona Borealis Great Wall, a giant galaxy filament that is the largest known structure in the observable universe; covering most of the northern sky.