BMAC Newsletter 201105
... Now for the real news flash: The The study relied on data from found a way to save initial mass function Galaxy Evolution Explorer to sense time and money. Just astronomers have been using UV radiation from the smaller stars count the biggest for years might be wrong. in distant galaxies, and data f ...
... Now for the real news flash: The The study relied on data from found a way to save initial mass function Galaxy Evolution Explorer to sense time and money. Just astronomers have been using UV radiation from the smaller stars count the biggest for years might be wrong. in distant galaxies, and data f ...
PDF 9 - The Open University
... Unless otherwise stated, this resource is released under the terms of the Creative Commons Licence v4.0 http://creativecommons.org/licenses/by-nc-sa/4.0/deed.en_GB. Within that The Open University interprets this licence in the following way: www.open.edu/openlearn/about-openlearn/frequently-asked-q ...
... Unless otherwise stated, this resource is released under the terms of the Creative Commons Licence v4.0 http://creativecommons.org/licenses/by-nc-sa/4.0/deed.en_GB. Within that The Open University interprets this licence in the following way: www.open.edu/openlearn/about-openlearn/frequently-asked-q ...
The Hobby-Eberly Telescope: performance
... The Hobby-Eberly Telescope (HET) is a fixed-elevation, 9.2-m telescope with a spherical primary mirror and a tracker at prime focus to follow astronomical objects. The telescope was constructed for $13.9M over the period 1994-1997. A series of extensive engineering upgrades and corrective actions ha ...
... The Hobby-Eberly Telescope (HET) is a fixed-elevation, 9.2-m telescope with a spherical primary mirror and a tracker at prime focus to follow astronomical objects. The telescope was constructed for $13.9M over the period 1994-1997. A series of extensive engineering upgrades and corrective actions ha ...
What Makes a Failure? Designing a New National Telescope, 1975
... this article I will limit my definition of “telescope” to traditional ground-based reflecting telescopes, such as have been used by astronomers for centuries, and of “astronomy” to traditional ground-based astronomy with observations made in the visible or near ultraviolet or infrared parts of the s ...
... this article I will limit my definition of “telescope” to traditional ground-based reflecting telescopes, such as have been used by astronomers for centuries, and of “astronomy” to traditional ground-based astronomy with observations made in the visible or near ultraviolet or infrared parts of the s ...
Stellar Evolution Guiding Questions Stars Evolve
... • Red giant becomes less luminous and smaller, but hotter. The core is in a steady state: – Temperature increases, core expands – Core expands, temperature decreases • Shell hydrogen fusion rate drops that lead to a lower ...
... • Red giant becomes less luminous and smaller, but hotter. The core is in a steady state: – Temperature increases, core expands – Core expands, temperature decreases • Shell hydrogen fusion rate drops that lead to a lower ...
Determining the Origin of Inner Planetary System Debris Orbiting the
... with a parent planetesimal population having a specified surface density distribution Σ0 . It is then evolved using the hybrid n-body-coagulation code as described by Kenyon & Bromley (2006) and Bromley & Kenyon (2006). The results of their simulations suggest that for initial surface densities of Σ0 ...
... with a parent planetesimal population having a specified surface density distribution Σ0 . It is then evolved using the hybrid n-body-coagulation code as described by Kenyon & Bromley (2006) and Bromley & Kenyon (2006). The results of their simulations suggest that for initial surface densities of Σ0 ...
New Moons for Pluto!
... The newly discovered objects are much smaller than Charon. Charon is about half Pluto’s size. The two new objects are about twice as far away from Pluto as Charon, but still close to the planet. A second image of Pluto taken three days later showed the objects in the same area. Scientists thought th ...
... The newly discovered objects are much smaller than Charon. Charon is about half Pluto’s size. The two new objects are about twice as far away from Pluto as Charon, but still close to the planet. A second image of Pluto taken three days later showed the objects in the same area. Scientists thought th ...
Galileo Galilei - New World Educational Center
... Some names in the history of inventions can never be forgotten as they bless us with their numerous creative inventions that have now become a need of every man. Among such great personalities one name that is always remembered is that of Galileo Galilei. ...
... Some names in the history of inventions can never be forgotten as they bless us with their numerous creative inventions that have now become a need of every man. Among such great personalities one name that is always remembered is that of Galileo Galilei. ...
114EQ-ASTR
... Many of them had telescope no bigger than the one you are using right now. Galileo, who is one of the first astronomers to use a telescope, discovered four of the moons of Jupiter with a telescope about the same size as yours (and his didn’t even focus very well!). OBSERVING Observe during the dayti ...
... Many of them had telescope no bigger than the one you are using right now. Galileo, who is one of the first astronomers to use a telescope, discovered four of the moons of Jupiter with a telescope about the same size as yours (and his didn’t even focus very well!). OBSERVING Observe during the dayti ...
ph709-08-3b - Centre for Astrophysics and Planetary Science
... curve or from irregularities in the transit timings. We find no evidence for either satellites or rings, with upper limits on satellite radius and mass of 1.2 R and 3 M , respectively. Opaque rings, if present, must be smaller than 1.8 planetary radii in radial extent. The high level of photometric ...
... curve or from irregularities in the transit timings. We find no evidence for either satellites or rings, with upper limits on satellite radius and mass of 1.2 R and 3 M , respectively. Opaque rings, if present, must be smaller than 1.8 planetary radii in radial extent. The high level of photometric ...
Class 28 (Jun 2) - Physics at Oregon State University
... gravitational pull can tear both galaxies apart. • This can occur with no stars actually colliding! (The space is so enormous!) • Eventually, a new elliptical galaxy will form… ...
... gravitational pull can tear both galaxies apart. • This can occur with no stars actually colliding! (The space is so enormous!) • Eventually, a new elliptical galaxy will form… ...
Eris is Pluto`s Twin This diagram shows the path of a faint star during
... telescopes. All three telescopes recorded a sudden drop in brightness as Eris blocked the light of the distant star. The combined observations from the two Chilean sites indicate that Eris is close to spherical. These measurements should accurately measure its shape and size as long as they are not ...
... telescopes. All three telescopes recorded a sudden drop in brightness as Eris blocked the light of the distant star. The combined observations from the two Chilean sites indicate that Eris is close to spherical. These measurements should accurately measure its shape and size as long as they are not ...
22 Chapter
... • Optical telescopes use light to produce magnified images of objects. • Light is collected by an objective lens or mirror, which then forms an image at the focal point of the telescope. • The eyepiece lens then magnifies the image. ...
... • Optical telescopes use light to produce magnified images of objects. • Light is collected by an objective lens or mirror, which then forms an image at the focal point of the telescope. • The eyepiece lens then magnifies the image. ...
Epsilon Aurigae – CCD Photometry Using a Small Telescope
... The first radius is the size of the aperture to be used for measuring the flux from the star. It should be large enough to include all the obvious bright pixels, but not much larger. The second radius is the inner radius of the annulus that will be used to measure the background sky brightness. The ...
... The first radius is the size of the aperture to be used for measuring the flux from the star. It should be large enough to include all the obvious bright pixels, but not much larger. The second radius is the inner radius of the annulus that will be used to measure the background sky brightness. The ...
MERLIN (Methane Remote Sensing Lidar Mission)
... The MERLIN mission will provide the following data products: Level 0: for each individual laser shot the rangegated backscatter signal data together with auxiliary data such as ranging information, laser pulse energy, time, wavelength in a chronological data sequence. Level 1a: Level 0 data with all ...
... The MERLIN mission will provide the following data products: Level 0: for each individual laser shot the rangegated backscatter signal data together with auxiliary data such as ranging information, laser pulse energy, time, wavelength in a chronological data sequence. Level 1a: Level 0 data with all ...
April 2014 - Bluewater Astronomical Society
... w i t h t h e W. M . K e c k Observatory, revealed three bodies moving together in an envelope of dust nearly the diameter of Earth. Hubble ST, with its superior resolution, showed 10 embedded objects, each with comet-like dust tails. The four largest rocky fragments are up to 400 yards in diameter. ...
... w i t h t h e W. M . K e c k Observatory, revealed three bodies moving together in an envelope of dust nearly the diameter of Earth. Hubble ST, with its superior resolution, showed 10 embedded objects, each with comet-like dust tails. The four largest rocky fragments are up to 400 yards in diameter. ...
Sky Watcher - Boise Astronomical Society
... Mars is less than 3° from Saturn from August 13th through 17th, and the two planets remain quite close to each other throughout the month. Look for it about one hour after sundown, low in the southwest. Mars, Saturn and Spica (magnitude +1) form a "trio", a grouping of three celestial objects fittin ...
... Mars is less than 3° from Saturn from August 13th through 17th, and the two planets remain quite close to each other throughout the month. Look for it about one hour after sundown, low in the southwest. Mars, Saturn and Spica (magnitude +1) form a "trio", a grouping of three celestial objects fittin ...
Feb 2015 - Bluewater Astronomical Society
... Outburst from Milky Way’s Black Hole Astronomers have observed the largest X-ray flare ever detected from the supermassive black hole at the center of the Milky Way galaxy. This event, detected by NASA’s Chandra X-ray Observatory, raises questions about the behavior of this giant black hole and its ...
... Outburst from Milky Way’s Black Hole Astronomers have observed the largest X-ray flare ever detected from the supermassive black hole at the center of the Milky Way galaxy. This event, detected by NASA’s Chandra X-ray Observatory, raises questions about the behavior of this giant black hole and its ...
114EQ-AR
... yes you can! The most common mistake of the beginning observer is to “overpower” a telescope by using high magnifications which the telescope’s aperture and atmospheric conditions cannot reasonably support. Keep in mind that a smaller, but bright and well-resolved image is far superior to one that i ...
... yes you can! The most common mistake of the beginning observer is to “overpower” a telescope by using high magnifications which the telescope’s aperture and atmospheric conditions cannot reasonably support. Keep in mind that a smaller, but bright and well-resolved image is far superior to one that i ...
Planets orbiting stars more massive than the Sun
... surveys for planets of these types of stars are not efficient (Desort 2009a; Desort 2009b; Guenther et al. 2009; Galland et al. 2006; Galland et al. 2010; Borgniet et al. 2014). Transit surveys are more suitable, because they do not suffer from these difficulties. The only challenges of transit surv ...
... surveys for planets of these types of stars are not efficient (Desort 2009a; Desort 2009b; Guenther et al. 2009; Galland et al. 2006; Galland et al. 2010; Borgniet et al. 2014). Transit surveys are more suitable, because they do not suffer from these difficulties. The only challenges of transit surv ...
Light: The Cosmic Messenger
... • How do telescopes help us learn about the universe? —We can see fainter objects and more detail than we can see by eye. Specialized telescopes allow us to learn more than we could from visible light alone. ...
... • How do telescopes help us learn about the universe? —We can see fainter objects and more detail than we can see by eye. Specialized telescopes allow us to learn more than we could from visible light alone. ...
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.