Solar System where_are_we
... All objects in the Galaxy revolve around the Galaxy's center Scientists have calculated that are about 400 billion stars in our galaxy ...
... All objects in the Galaxy revolve around the Galaxy's center Scientists have calculated that are about 400 billion stars in our galaxy ...
Broad Sheet 7 - Museum of the History of Science
... with a larger ‘aperture’ would collect more light and an observer could enjoy greater detail in the moon or Saturn, or wonder at the variety of nebulae or clusters of stars. That they had little potential for measurement was of no importance in this context. The Gregorian had the intuitive advantage ...
... with a larger ‘aperture’ would collect more light and an observer could enjoy greater detail in the moon or Saturn, or wonder at the variety of nebulae or clusters of stars. That they had little potential for measurement was of no importance in this context. The Gregorian had the intuitive advantage ...
The Sizes of Stars
... a disk, this will cause the atoms will rub up against each other. There will be friction! So The material will lose orbital energy and spiral in The disk will get real hot. The faster the gas moves, the greater the friction, and the hotter the disk. If the companion star is compact (white dwarf, ...
... a disk, this will cause the atoms will rub up against each other. There will be friction! So The material will lose orbital energy and spiral in The disk will get real hot. The faster the gas moves, the greater the friction, and the hotter the disk. If the companion star is compact (white dwarf, ...
Teacher notes and student sheets
... We are not aliens looking at the Solar System from a long way away, but we are natives of the Solar System looking out. We have begun to discover exoplanets in orbit around many stars, and we are developing the technology for looking more closely at them. Discovering objects that are much smaller an ...
... We are not aliens looking at the Solar System from a long way away, but we are natives of the Solar System looking out. We have begun to discover exoplanets in orbit around many stars, and we are developing the technology for looking more closely at them. Discovering objects that are much smaller an ...
Orion capsules will take astronauts out of low
... capsule from 480 kilometers (300 miles) per hour in the upper atmosphere to less than 30 kilometers per hour at impact. To prevent injury, NASA and Orion prime contractor Lockheed Martin are working with Safe Inc., a company based in Tempe, Arizona, that is known for producing energy-absorbing helic ...
... capsule from 480 kilometers (300 miles) per hour in the upper atmosphere to less than 30 kilometers per hour at impact. To prevent injury, NASA and Orion prime contractor Lockheed Martin are working with Safe Inc., a company based in Tempe, Arizona, that is known for producing energy-absorbing helic ...
The Focal Point - Atlanta Astronomy Club
... shadow, while the Great Red Spot and Oval BA ("Junior") with clear signs of interaction. Page 3 ...
... shadow, while the Great Red Spot and Oval BA ("Junior") with clear signs of interaction. Page 3 ...
Outside the Solar System Outside the Solar System OUTSIDE THE
... go of a rubber ball, it springs back to shape. In a supernova, the crushed star springs back too. But it keeps expanding. It hurls matter into space in a giant explosion. This is how a supernova forms. One day, gravity will pull the cloud of gas and dust from the supernova back together. The cloud w ...
... go of a rubber ball, it springs back to shape. In a supernova, the crushed star springs back too. But it keeps expanding. It hurls matter into space in a giant explosion. This is how a supernova forms. One day, gravity will pull the cloud of gas and dust from the supernova back together. The cloud w ...
In Retrospect: Kepler`s Astronomia Nova
... enough to predict the transits of the inner planets Mercury and Venus across the Sun’s disc, which were first observed in 1631 and 1639, respectively. Thus it is fitting that Kepler’s name today graces the first space mission dedicated to searching for planets beyond our Solar System using a similar ...
... enough to predict the transits of the inner planets Mercury and Venus across the Sun’s disc, which were first observed in 1631 and 1639, respectively. Thus it is fitting that Kepler’s name today graces the first space mission dedicated to searching for planets beyond our Solar System using a similar ...
Universal Infrared Lens 1 copy
... The current market of infrared optics covers a wide range of wavelengths starting just past the visible range at 800 nm and extending out to 12 µm and beyond with specific demand correlated to the sensitivity of detector arrays and stepping around the water lines due to bending vibration energy leve ...
... The current market of infrared optics covers a wide range of wavelengths starting just past the visible range at 800 nm and extending out to 12 µm and beyond with specific demand correlated to the sensitivity of detector arrays and stepping around the water lines due to bending vibration energy leve ...
Stars and Galaxies
... 24. Astronomers use spectrographs to study the ___________________ of stars to identify properties of stars. 25. Spectrographs break ______________________ into its component colors. 26. Dark lines are in the spectrum of a star. 27. The dark lines are caused by _____________________ in the star’s at ...
... 24. Astronomers use spectrographs to study the ___________________ of stars to identify properties of stars. 25. Spectrographs break ______________________ into its component colors. 26. Dark lines are in the spectrum of a star. 27. The dark lines are caused by _____________________ in the star’s at ...
The New Worlds Observer
... an IWA in this range to be able to see the majority of the HZ planets for these stars. As well as being very near to the star, a habitable terrestrial planet is very small in size, and thus reflects only a tiny fraction of the star's light. By definition, the “habitable zone” is where an Earth-like ...
... an IWA in this range to be able to see the majority of the HZ planets for these stars. As well as being very near to the star, a habitable terrestrial planet is very small in size, and thus reflects only a tiny fraction of the star's light. By definition, the “habitable zone” is where an Earth-like ...
334 Chapter 23. Gravitational lenses Why images get brighter
... of the star, covering a given angular size in our observation, will be just as bright as before. But when we consider the whole star, we need to take account of the fact that the size of the image of the star is larger than without the lens, because the diverging lens has made the star appear closer ...
... of the star, covering a given angular size in our observation, will be just as bright as before. But when we consider the whole star, we need to take account of the fact that the size of the image of the star is larger than without the lens, because the diverging lens has made the star appear closer ...
MAPLE: Reflected Light from Exoplanets with a 50
... spectrum.2–5 These observations are of planets (gas giants similar to a young Jupiter) whose brightness is 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 ...
... spectrum.2–5 These observations are of planets (gas giants similar to a young Jupiter) whose brightness is 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 ...
The Newtonian Revolution: The discovery of natural law
... and COMPEL the rest of the Solar System to do ALL of the moving… • As observations improved after Ptolemy’s death, this is what forced epicycles on top of epicycles, and deferrents away from the centers. • His construction is essentially what we would call today a Fourier de-composition of the motio ...
... and COMPEL the rest of the Solar System to do ALL of the moving… • As observations improved after Ptolemy’s death, this is what forced epicycles on top of epicycles, and deferrents away from the centers. • His construction is essentially what we would call today a Fourier de-composition of the motio ...
CHAPTER 3: Light and Telescopes
... •the debate over what light is, and how Einstein resolved it •how telescopes collect and focus light •what telescopes can and cannot do ...
... •the debate over what light is, and how Einstein resolved it •how telescopes collect and focus light •what telescopes can and cannot do ...
Weightlessness in Orbit Take
... planets? (Y): If they are not familiar with gravity, we can try to explain the concepts of “force” and “gravity.” a. (Y): One fun activity might be to have students act out “invisible forces.” Basically the students can stand facing each other and try to (i.e. pretend to) push and pull each other wi ...
... planets? (Y): If they are not familiar with gravity, we can try to explain the concepts of “force” and “gravity.” a. (Y): One fun activity might be to have students act out “invisible forces.” Basically the students can stand facing each other and try to (i.e. pretend to) push and pull each other wi ...
Angular size and resolution - RIT Center for Imaging Science
... • BUT: you can’t magnify images by arbitrarily large factors! • Remember diffraction! – Diffraction is the unavoidable propensity of light to change direction of propagation, i.e., to “bend” – Cannot focus light from a point source to an arbitrarily small “spot” ...
... • BUT: you can’t magnify images by arbitrarily large factors! • Remember diffraction! – Diffraction is the unavoidable propensity of light to change direction of propagation, i.e., to “bend” – Cannot focus light from a point source to an arbitrarily small “spot” ...
Putting a Whopper into Orbit
... An orbit is a regular, repeating path that one object in space takes around another one. An object in an orbit is called a satellite. A satellite can be natural, like the Earth or the Moon. It can also be man-made, like the Space Shuttle or the ISS. In our solar system, the Earth and the eight other ...
... An orbit is a regular, repeating path that one object in space takes around another one. An object in an orbit is called a satellite. A satellite can be natural, like the Earth or the Moon. It can also be man-made, like the Space Shuttle or the ISS. In our solar system, the Earth and the eight other ...
October 2014 - Hermanus Astronomy
... stars in very close binary systems. There also exist exoplanets that are known to orbit one of the stars in very wide binary systems. If the two stars are very close to each other and the planet far away, a circumbinary planet will be reminiscent of Tatooine in Star Wars. If, instead, the exoplanet ...
... stars in very close binary systems. There also exist exoplanets that are known to orbit one of the stars in very wide binary systems. If the two stars are very close to each other and the planet far away, a circumbinary planet will be reminiscent of Tatooine in Star Wars. If, instead, the exoplanet ...
Across the Universe
... move or change. Records are kept to allow us to know when it will be a full moon or a solar eclipse, and models allow us to examine planets and stars in the galaxy. The Earth is the third planet from the sun, and the fifth-largest of the eight planets in our solar system. The solar system was formed ...
... move or change. Records are kept to allow us to know when it will be a full moon or a solar eclipse, and models allow us to examine planets and stars in the galaxy. The Earth is the third planet from the sun, and the fifth-largest of the eight planets in our solar system. The solar system was formed ...
Theme 7.2 -- The Complete Solar System
... biases that are going to influence the kinds of planets we can detect and constrain our ability to draw general conclusions. For example, planets that are big in size are the easiest to find because they block off more light during transit. Planets that are large in mass are likewise easiest to find ...
... biases that are going to influence the kinds of planets we can detect and constrain our ability to draw general conclusions. For example, planets that are big in size are the easiest to find because they block off more light during transit. Planets that are large in mass are likewise easiest to find ...
Optics Education in the International Year of Astronomy
... which emit a portion of their light directly upward into the sky where the light scatters, creating an orange-yellow glow above a city or town. This light can then interfere with sensitive astronomical instruments trying to capture light from distant galaxies. Light trespass occurs when poorly shiel ...
... which emit a portion of their light directly upward into the sky where the light scatters, creating an orange-yellow glow above a city or town. This light can then interfere with sensitive astronomical instruments trying to capture light from distant galaxies. Light trespass occurs when poorly shiel ...
Spitzer Space Telescope
The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space observatory launched in 2003. It is the fourth and final of the NASA Great Observatories program.The planned mission period was to be 2.5 years with a pre-launch expectation that the mission could extend to five or slightly more years until the onboard liquid helium supply was exhausted. This occurred on 15 May 2009. Without liquid helium to cool the telescope to the very low temperatures needed to operate, most of the instruments are no longer usable. However, the two shortest-wavelength modules of the IRAC camera are still operable with the same sensitivity as before the cryogen was exhausted, and will continue to be used in the Spitzer Warm Mission. All Spitzer data, from both the primary and warm phases, are archived at the Infrared Science Archive (IRSA).In keeping with NASA tradition, the telescope was renamed after its successful demonstration of operation, on 18 December 2003. Unlike most telescopes that are named after famous deceased astronomers by a board of scientists, the new name for SIRTF was obtained from a contest open to the general public.The contest led to the telescope being named in honor of astronomer Lyman Spitzer, who had promoted the concept of space telescopes in the 1940s. Spitzer wrote a 1946 report for RAND Corporation describing the advantages of an extraterrestrial observatory and how it could be realized with available or upcoming technology. He has been cited for his pioneering contributions to rocketry and astronomy, as well as ""his vision and leadership in articulating the advantages and benefits to be realized from the Space Telescope Program.""The US$800 million Spitzer was launched from Cape Canaveral Air Force Station, on a Delta II 7920H ELV rocket, Monday, 25 August 2003 at 13:35:39 UTC-5 (EDT).It follows a heliocentric instead of geocentric orbit, trailing and drifting away from Earth's orbit at approximately 0.1 astronomical unit per year (a so-called ""earth-trailing"" orbit). The primary mirror is 85 centimeters (33 in) in diameter, f/12, made of beryllium and is cooled to 5.5 K (−449.77 °F). The satellite contains three instruments that allow it to perform astronomical imaging and photometry from 3 to 180 micrometers, spectroscopy from 5 to 40 micrometers, and spectrophotometry from 5 to 100 micrometers.