chromospheric telescope of baikal astrophysical observatory. new light
... manually with a Konica Minolta DiMAGE A2 8MP Digital Camera (3264×2448 pixels). The small camera view (about 17 mm) allowed us to observe only individual active regions. To take full-disk images by a new automatic Hamamatsu С9300-124 CCD camera with a 36×24 mm detector (4000×2672 pixels), we tempora ...
... manually with a Konica Minolta DiMAGE A2 8MP Digital Camera (3264×2448 pixels). The small camera view (about 17 mm) allowed us to observe only individual active regions. To take full-disk images by a new automatic Hamamatsu С9300-124 CCD camera with a 36×24 mm detector (4000×2672 pixels), we tempora ...
09 03 07 Logic Outline - The National Academies of Sciences
... (RTMC). The quarterly journal, Amateur Telescope Making, which was the primary published record for Dobsonian developments for many years, has now been superseded by Amateur Astronomer. Sky & Telescope and Astronomy Technology ...
... (RTMC). The quarterly journal, Amateur Telescope Making, which was the primary published record for Dobsonian developments for many years, has now been superseded by Amateur Astronomer. Sky & Telescope and Astronomy Technology ...
Ben R. Oppenheimer1,2 and Sasha Hinkley1,2
... our solar system, and may also yield answers to some of the most profound questions in this field, such as “How common is life in the universe?” or “Are planets like Earth rare?” At this point in time, high-contrast observing is primarily used in three subfields of astronomy: comparative exoplanetar ...
... our solar system, and may also yield answers to some of the most profound questions in this field, such as “How common is life in the universe?” or “Are planets like Earth rare?” At this point in time, high-contrast observing is primarily used in three subfields of astronomy: comparative exoplanetar ...
Document
... • Stars in the disk all orbit the galactic center in about the same plane and in the same direction. Halo stars also orbit the center of the galaxy, but with orbits randomly inclined to the disk of the galaxy. • How long does it take the Sun to orbit the galactic center? • Each orbit takes about 230 ...
... • Stars in the disk all orbit the galactic center in about the same plane and in the same direction. Halo stars also orbit the center of the galaxy, but with orbits randomly inclined to the disk of the galaxy. • How long does it take the Sun to orbit the galactic center? • Each orbit takes about 230 ...
DV Briefing, J. Marty
... AIRO: The Antarctic Infrared Observatory (Jim Jackson, Boston University) Wide-field surveys of brown dwarfs and star-forming regions API: Antarctic Planet Interferometer (Mark Swain, JPL/Univ. of Arizona) A concept designed to detect and characterize Earth-like extrasolar planets National Scien ...
... AIRO: The Antarctic Infrared Observatory (Jim Jackson, Boston University) Wide-field surveys of brown dwarfs and star-forming regions API: Antarctic Planet Interferometer (Mark Swain, JPL/Univ. of Arizona) A concept designed to detect and characterize Earth-like extrasolar planets National Scien ...
Can You Play Online Bingo On Ipad
... BASF55 was highly effective when substituted in the model. The in situ performance of large glass elements has not been much pursued since refractive telescopes were largely abandoned 100 years ago. It would be interesting to revive their study in this context. It is anticipated that if the POHOE is ...
... BASF55 was highly effective when substituted in the model. The in situ performance of large glass elements has not been much pursued since refractive telescopes were largely abandoned 100 years ago. It would be interesting to revive their study in this context. It is anticipated that if the POHOE is ...
The Milky Way - TCNJ | The College of New Jersey
... orbits of some nearby RGs very fast; those further away are slower; X-rays consistent with weak emission from accretion ...
... orbits of some nearby RGs very fast; those further away are slower; X-rays consistent with weak emission from accretion ...
Learning goals for Astronomy`s Final 2013
... 6. Explain azimuth and altitude as parts of a celestial coordinate system. Include when are they useful 7. Find objects in the sky by computing altitude and azimuth using your hand o If your fist fits 9 times between the horizon and the zenith, it covers 10o. Explain why o find how many degrees a ha ...
... 6. Explain azimuth and altitude as parts of a celestial coordinate system. Include when are they useful 7. Find objects in the sky by computing altitude and azimuth using your hand o If your fist fits 9 times between the horizon and the zenith, it covers 10o. Explain why o find how many degrees a ha ...
6671-09_stacie_hvisc - LOFT, Large Optics Fabrication and
... Anastacia M. Hvisc*, James H. Burge College of Optical Sciences/The University of Arizona * [email protected] ...
... Anastacia M. Hvisc*, James H. Burge College of Optical Sciences/The University of Arizona * [email protected] ...
31-2 - Fremont Peak Observatory
... closely grouped open clusters, NGC-6231, H12, Trumpler 24, and NGC-6242 along with Zeta-Scorpii 1 & 2 (ζ-Scorpii 1 & 2). All four (4) of the open clusters can be seen together in the 11x80 binoculars at the observatory. It is one of my favorite binocular objects and one that I show to the public dur ...
... closely grouped open clusters, NGC-6231, H12, Trumpler 24, and NGC-6242 along with Zeta-Scorpii 1 & 2 (ζ-Scorpii 1 & 2). All four (4) of the open clusters can be seen together in the 11x80 binoculars at the observatory. It is one of my favorite binocular objects and one that I show to the public dur ...
norfolk skies - Norfolk Astronomical Society
... On a cold night last January (1980), Dr. Scarr and I stumbled onto a beautiful little cluster of stars, just south of Sirius, in the constellation pf Canis Major. It's a very impressive little group, with about 3040 little 10th magnitude stars, all bunched up around this bright 4th magnitude star. A ...
... On a cold night last January (1980), Dr. Scarr and I stumbled onto a beautiful little cluster of stars, just south of Sirius, in the constellation pf Canis Major. It's a very impressive little group, with about 3040 little 10th magnitude stars, all bunched up around this bright 4th magnitude star. A ...
Blocking Starlight Much Closer to Home 2: This Year`s
... have the light curve of an occultation by that 15th magnitude star, which was the typical brightness of our occultation stars that we were observing anyway. We are about to submit a paper to the Astronomical Journal about our results. It is important to search in the Pluto system ahead of and behind ...
... have the light curve of an occultation by that 15th magnitude star, which was the typical brightness of our occultation stars that we were observing anyway. We are about to submit a paper to the Astronomical Journal about our results. It is important to search in the Pluto system ahead of and behind ...
Lect15-3-23-11-stars..
... 2. Second, as the gas cloud continues to collapse, radiating into space essentially all of the heat generated from gravitational potential energy release, its surface temperature warms only slightly. However, as the collapse proceeds, the surface area of the cloud is diminished,, so that its luminos ...
... 2. Second, as the gas cloud continues to collapse, radiating into space essentially all of the heat generated from gravitational potential energy release, its surface temperature warms only slightly. However, as the collapse proceeds, the surface area of the cloud is diminished,, so that its luminos ...
Bioptic telescopes - The College of Optometrists
... can offer an aid that provides a magnified distance image, thereby improving resolution and reducing associated visual disabilities. Differing from hand-held monocular or binocular telescopes, a bioptic telescope provides a spectacle-mounted hands-free method for magnification at a distance that can ...
... can offer an aid that provides a magnified distance image, thereby improving resolution and reducing associated visual disabilities. Differing from hand-held monocular or binocular telescopes, a bioptic telescope provides a spectacle-mounted hands-free method for magnification at a distance that can ...
On the Permissible Numerical Value of the
... coincide with the main formulae of spherical trigonometry which, as well known, transform into the regular trigonometric formulae in the case where the sides of the triangle are small relative to the radius R of the sphere. However taking R sufficiently large, the sides of any triangle we are measur ...
... coincide with the main formulae of spherical trigonometry which, as well known, transform into the regular trigonometric formulae in the case where the sides of the triangle are small relative to the radius R of the sphere. However taking R sufficiently large, the sides of any triangle we are measur ...
What Happened to Pluto?
... Pluto has always been special compared to the other planets. It has an inclined orbit of about 17 and it intersects with Neptune’s. For about 20 years, Pluto was closer to Sun than Neptune. In 1978, James Christy from the Hubble Telescope discovered Pluto’s innermost moon. The unique relationship b ...
... Pluto has always been special compared to the other planets. It has an inclined orbit of about 17 and it intersects with Neptune’s. For about 20 years, Pluto was closer to Sun than Neptune. In 1978, James Christy from the Hubble Telescope discovered Pluto’s innermost moon. The unique relationship b ...
Internal structure of a cold dark molecular cloud inferred
... pressure at its boundary of P 2:5 3 10 2 12 Pa. This surface pressure is an order of magnitude higher than that of the general interstellar medium22 but it is in rough agreement with the pressure inferred for the Loop I superbubble from X-ray observations with the ROSAT satellite13. The close corr ...
... pressure at its boundary of P 2:5 3 10 2 12 Pa. This surface pressure is an order of magnitude higher than that of the general interstellar medium22 but it is in rough agreement with the pressure inferred for the Loop I superbubble from X-ray observations with the ROSAT satellite13. The close corr ...
exo planets
... Red dwarfs are known as M class stars. They are smaller, less bright and typically much cooler than our Sun, which is a “G” class star. Kepler 186 is one of the hotter red dwarfs known. 186f is about the same distance from its star as Mercury is from our Sun. Because Kepler 186 is much smaller than ...
... Red dwarfs are known as M class stars. They are smaller, less bright and typically much cooler than our Sun, which is a “G” class star. Kepler 186 is one of the hotter red dwarfs known. 186f is about the same distance from its star as Mercury is from our Sun. Because Kepler 186 is much smaller than ...
The Hobby-Eberly Telescope completion project
... HET was an ambitious project from its inception, aspiring to build a very large telescope comparatively inexpensively by deliberately limiting some typical telescope capabilities, such as full steerability, to fund an increased primary mirror size. Perhaps not surprisingly for an innovative design o ...
... HET was an ambitious project from its inception, aspiring to build a very large telescope comparatively inexpensively by deliberately limiting some typical telescope capabilities, such as full steerability, to fund an increased primary mirror size. Perhaps not surprisingly for an innovative design o ...
Lecture6
... molecular clouds (cool clouds with CO and H2 molecules). Bursts of protostar formation takes place when these dense regions are hit by high speed (`supersonic’, meaning speed faster than the sound speed) winds from a near-by supernova explosion or UV light and winds from near-by hot O and B stars ...
... molecular clouds (cool clouds with CO and H2 molecules). Bursts of protostar formation takes place when these dense regions are hit by high speed (`supersonic’, meaning speed faster than the sound speed) winds from a near-by supernova explosion or UV light and winds from near-by hot O and B stars ...
Major Stars of the Orion Constellation
... solar objects to have its disk diameter measured. “The angular diameter of Betelgeuse was first measured in 1920-1921 by Michelson and Pease using an astronomical interferometer on the Mount Wilson 100 inch telescope”. [Betelgeuseweb] Recent Hubble images taken in 1995, reveal a giant “hotspot” on i ...
... solar objects to have its disk diameter measured. “The angular diameter of Betelgeuse was first measured in 1920-1921 by Michelson and Pease using an astronomical interferometer on the Mount Wilson 100 inch telescope”. [Betelgeuseweb] Recent Hubble images taken in 1995, reveal a giant “hotspot” on i ...
High energy cosmic gamma rays detectors
... IACTs use a matrix of photo multipliers in the focal plane of the segmented mirror in the David-Cotton geometry to detect the light flashes of Cherenkov light generated by ultra-relativistic charged secondary air shower particles against a large background due to the light of the night sky. As it wa ...
... IACTs use a matrix of photo multipliers in the focal plane of the segmented mirror in the David-Cotton geometry to detect the light flashes of Cherenkov light generated by ultra-relativistic charged secondary air shower particles against a large background due to the light of the night sky. As it wa ...
Unit 1
... • In the 1700’s, Charles Messier was observing comets, and kept finding objects that while fuzzy, were not comets – He made a list (or catalog) of these undesired objects, so he could avoid seeing them – They became known as Messier Objects, a number preceded by an M. – M31 (the Andromeda galaxy) is ...
... • In the 1700’s, Charles Messier was observing comets, and kept finding objects that while fuzzy, were not comets – He made a list (or catalog) of these undesired objects, so he could avoid seeing them – They became known as Messier Objects, a number preceded by an M. – M31 (the Andromeda galaxy) is ...
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.