Exoplanet Discoveries and the Fermi Paradox
... Frank Drake examined the probability of extraterrestrial intelligence by developing his famous equation in the 1960s, which stated that the number of intelligence species in the galaxy is the product of 7 factors, from the rate of star formation through the probabilities of planets, habitability, li ...
... Frank Drake examined the probability of extraterrestrial intelligence by developing his famous equation in the 1960s, which stated that the number of intelligence species in the galaxy is the product of 7 factors, from the rate of star formation through the probabilities of planets, habitability, li ...
Treating with Spectacle Lenses: A Novel Idea!?
... listening to sounds of neural activity in the cortex, monitored with intracellular electrodes, while changing lenses ...
... listening to sounds of neural activity in the cortex, monitored with intracellular electrodes, while changing lenses ...
pilot_projSOW_long - New Mexico Institute of Mining and
... techniques are being developed to address this as well (Ďurech and Kaasalainen 2003; Lambert et al. 2004). However, in general, the problem of inverting lightcurve data to determine a unique shape remains a challenging task for irregularly shaped objects. In this analysis, we build on the large body ...
... techniques are being developed to address this as well (Ďurech and Kaasalainen 2003; Lambert et al. 2004). However, in general, the problem of inverting lightcurve data to determine a unique shape remains a challenging task for irregularly shaped objects. In this analysis, we build on the large body ...
Disk Instability Models
... • Surface T = 50 K means lower midplane T • No artificial viscosity so no irreversible heating in shock fronts and a =0 assumed • Cooling time ~ 1-2 P ...
... • Surface T = 50 K means lower midplane T • No artificial viscosity so no irreversible heating in shock fronts and a =0 assumed • Cooling time ~ 1-2 P ...
“extras” available for your scope?
... specific to your camera. On one end, a Tring has the same protrusions (or “ears”) as the base of a camera lens. On the other end, it is threaded to receive the T-adapter. The T-adapter (you’ll need only one) screws into any T-ring and then attaches to a telescope the same as an eyepiece. ...
... specific to your camera. On one end, a Tring has the same protrusions (or “ears”) as the base of a camera lens. On the other end, it is threaded to receive the T-adapter. The T-adapter (you’ll need only one) screws into any T-ring and then attaches to a telescope the same as an eyepiece. ...
ADDENDUM TO PRODUCT MANUAL
... Be sure to level the tripod before you begin alignment. The time/site information along with a level tripod will help the telescope better predict the available bright stars and planets that are above the horizon. Remember to select alignment stars that are as far apart in the sky as possible. For b ...
... Be sure to level the tripod before you begin alignment. The time/site information along with a level tripod will help the telescope better predict the available bright stars and planets that are above the horizon. Remember to select alignment stars that are as far apart in the sky as possible. For b ...
Description of Pictures In the Dome
... located at a distance of 1,344 ± 20 light years and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light years across. Older texts frequently referred to the Orion Nebula as the Great Nebula in Orion or the Great Orion Nebula. The Orion Nebula is one o ...
... located at a distance of 1,344 ± 20 light years and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light years across. Older texts frequently referred to the Orion Nebula as the Great Nebula in Orion or the Great Orion Nebula. The Orion Nebula is one o ...
The Hubble Space Telescope
... clear nights, those gases block and distort light from the stars. In fact, it is the atmosphere that causes stars to appear as if they are twinkling. ...
... clear nights, those gases block and distort light from the stars. In fact, it is the atmosphere that causes stars to appear as if they are twinkling. ...
Our Galaxy
... Center of our galaxy and galactic motion 1. Chandra space telescope observe the universe in: a) visible light, b) infrared, c) radio waves, d) x ray 2. Pictures form Chandra space telescope shows there is ____ at the center of our galaxy. A) giant star, b) giant neutron star, c) blackhole, d) anoth ...
... Center of our galaxy and galactic motion 1. Chandra space telescope observe the universe in: a) visible light, b) infrared, c) radio waves, d) x ray 2. Pictures form Chandra space telescope shows there is ____ at the center of our galaxy. A) giant star, b) giant neutron star, c) blackhole, d) anoth ...
ML 5037-40
... double-mirror system to eliminate the higher order light. The measurement configuration is schematically shown in figure 9. The beam intensity emerging from the monochrometer (after the Ni double-mirror system) was monitored by measuring the current of the photo-electrons from an Au-coated W mesh, w ...
... double-mirror system to eliminate the higher order light. The measurement configuration is schematically shown in figure 9. The beam intensity emerging from the monochrometer (after the Ni double-mirror system) was monitored by measuring the current of the photo-electrons from an Au-coated W mesh, w ...
Stellar Evolution: Evolution: Birth, Life, and Death of Stars
... Sun--like stars The Sun-like star does not change much during the first ~90% of its life, as far as it has enough fuel (hydrogen) to continue with thermonuclear reactions. We call it a main sequence star. When its fuel, hydrogen, exhausts, it expands into a red giant star. Inside the core, the t ...
... Sun--like stars The Sun-like star does not change much during the first ~90% of its life, as far as it has enough fuel (hydrogen) to continue with thermonuclear reactions. We call it a main sequence star. When its fuel, hydrogen, exhausts, it expands into a red giant star. Inside the core, the t ...
galctr
... • Solution: ambipolar diffusion (assisted by turbulence in cloud or disk) What defines core masses => stellar masses? • Jeans-mass core has M~ LJ2 with LJ =(v2 + cs2)/(G ) if thermally+turbulently supported; magnetically critical 1/~ 2 G 1/2/B ; combine to obtain M crit,turb ~ v4 /(G 3/2 B) ...
... • Solution: ambipolar diffusion (assisted by turbulence in cloud or disk) What defines core masses => stellar masses? • Jeans-mass core has M~ LJ2 with LJ =(v2 + cs2)/(G ) if thermally+turbulently supported; magnetically critical 1/~ 2 G 1/2/B ; combine to obtain M crit,turb ~ v4 /(G 3/2 B) ...
Electronic version
... based facilities worldwide, as well as the beautiful data and the astounding inferences made possible with the unique SOHO - Solar Oscillations and Heliospheric Observatory. More than a full day's worth of oral and poster presentations, fully embedded in the seven sessions program, will be devoted t ...
... based facilities worldwide, as well as the beautiful data and the astounding inferences made possible with the unique SOHO - Solar Oscillations and Heliospheric Observatory. More than a full day's worth of oral and poster presentations, fully embedded in the seven sessions program, will be devoted t ...
After School Guide to Ology Astronomy
... and which occurred at some time between 13 and 14 billion years ago. According to current theory, the Big Bang launched the ongoing expansion of the universe. black hole – A region in space where gravity is so strong that space closes back on itself, allowing nothing, not even light, to escape. come ...
... and which occurred at some time between 13 and 14 billion years ago. According to current theory, the Big Bang launched the ongoing expansion of the universe. black hole – A region in space where gravity is so strong that space closes back on itself, allowing nothing, not even light, to escape. come ...
Beyond the Solar System By Patti Hutchison ANSWER THE
... year is the distance that light travels in one year. A light year is about 9.5 trillion kilometers or about 6 trillion miles. Our solar system is about 4.6 billion years old. Our sun is a young star. Scientists think the Milky Way galaxy may be about 14 billion years old. The smallest galaxies conta ...
... year is the distance that light travels in one year. A light year is about 9.5 trillion kilometers or about 6 trillion miles. Our solar system is about 4.6 billion years old. Our sun is a young star. Scientists think the Milky Way galaxy may be about 14 billion years old. The smallest galaxies conta ...
Gone in a flash: supernovae in the survey era
... from the death of stars of greater than ~100 M⊙ via the pair instability mechanism (Gal-Yam et al. 2009): an extremely massive star will go through a phase of electron–positron “pair” generation in its core, rendering the star unstable and making it explode, long before it evolves to the point that ...
... from the death of stars of greater than ~100 M⊙ via the pair instability mechanism (Gal-Yam et al. 2009): an extremely massive star will go through a phase of electron–positron “pair” generation in its core, rendering the star unstable and making it explode, long before it evolves to the point that ...
ExTRaSOLaR pLaNeTS
... 2 004: First direct image taken of an extrasolar planet, paving the way for more direct studies. ...
... 2 004: First direct image taken of an extrasolar planet, paving the way for more direct studies. ...
ppt
... -- the results we are seeing in the data is partly a selection effect: most sensitive to massive, inner planets; but will ...
... -- the results we are seeing in the data is partly a selection effect: most sensitive to massive, inner planets; but will ...
Dynamical models of the nucleus of M31
... • ~ 100 massive young stars found in the central parsec age » 6£ 106 yr; formation is a puzzle: • formation in situ from a disk? • disruption of an infalling cluster? • implied star-formation rate is so high that it must be episodic • line-of-sight velocities measured by Doppler shift and angular ve ...
... • ~ 100 massive young stars found in the central parsec age » 6£ 106 yr; formation is a puzzle: • formation in situ from a disk? • disruption of an infalling cluster? • implied star-formation rate is so high that it must be episodic • line-of-sight velocities measured by Doppler shift and angular ve ...
August - San Diego Astronomy Association
... On Friday, June 8th at Mission Trails Recreational Park, members of the San Diego Astronomy Association gathered to pay respect to long-time member Mike Dietz. Approximately twenty people attended the event. Speakers included Terry Stewart, Bill Griffith, Dennis Amman, Bob Wexel, and Alice Harvey. T ...
... On Friday, June 8th at Mission Trails Recreational Park, members of the San Diego Astronomy Association gathered to pay respect to long-time member Mike Dietz. Approximately twenty people attended the event. Speakers included Terry Stewart, Bill Griffith, Dennis Amman, Bob Wexel, and Alice Harvey. T ...
A Study of the Spiral Galaxy M101 Elizabeth City State University
... filters isolated select wavelengths of light to allow one to examine the galaxy in detail and look for regions of high and low ionization, including HII regions. Table 3 describes the observing site. The Image Reduction and Analysis Facility (IRAF) is the software that was used for the image reducti ...
... filters isolated select wavelengths of light to allow one to examine the galaxy in detail and look for regions of high and low ionization, including HII regions. Table 3 describes the observing site. The Image Reduction and Analysis Facility (IRAF) is the software that was used for the image reducti ...
Polaris Series Manual
... The tripod is the basic support for your telescope. Its height may be adjusted so that you can view comfortably. Note: Number in brackets, e.g., (3), refer to Fig. 1A and 1B unless noted otherwise. The tripod is shipped from the factory pre-assembled and needs only the mount and accessory tray attac ...
... The tripod is the basic support for your telescope. Its height may be adjusted so that you can view comfortably. Note: Number in brackets, e.g., (3), refer to Fig. 1A and 1B unless noted otherwise. The tripod is shipped from the factory pre-assembled and needs only the mount and accessory tray attac ...
University of Dayton Flyer Observatory (UFO)
... A Ritchey-Chrétien is a specialized Cassegrain reflector utilizing true hyperbolic surfaces. All reflectors typically have an aberration called coma - all except for the Ritchey-Chrétien. The hyperbolic mirrors of the Ritchey-Chrétien make this design coma free, which results in a much smaller spot ...
... A Ritchey-Chrétien is a specialized Cassegrain reflector utilizing true hyperbolic surfaces. All reflectors typically have an aberration called coma - all except for the Ritchey-Chrétien. The hyperbolic mirrors of the Ritchey-Chrétien make this design coma free, which results in a much smaller spot ...
Pluto and definition of planet
... in Solar System were one of the things that where debated on conference. First draft proposal of definition was announced on August 16th. According to the draft proposal, to existing nine planets would be added Ceres, Charon and Eris. Later, the number of planets would grow since there where already ...
... in Solar System were one of the things that where debated on conference. First draft proposal of definition was announced on August 16th. According to the draft proposal, to existing nine planets would be added Ceres, Charon and Eris. Later, the number of planets would grow since there where already ...
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.