Wide field telescope using spherical mirrors
... fields using correctors. Numerous correctors can populate the focal surface. To achieve a 30-m aperture we use a telescope with 36-m primary mirror and 15-m secondary mirror. The 3° field of view extends over a 7 meter focal surface. The spherical aberration from this system is large (about 2 arc mi ...
... fields using correctors. Numerous correctors can populate the focal surface. To achieve a 30-m aperture we use a telescope with 36-m primary mirror and 15-m secondary mirror. The 3° field of view extends over a 7 meter focal surface. The spherical aberration from this system is large (about 2 arc mi ...
Network Telescopes: Technical Report
... For example, rather than knowing that the expected time to observe one or more packets from a Code-Red-like host on a /8 is 25.6 seconds, it is more useful to know that the telescope would have a 63.2% likelihood of detecting that event in the same 25.6 second time period. In the other direction, we ...
... For example, rather than knowing that the expected time to observe one or more packets from a Code-Red-like host on a /8 is 25.6 seconds, it is more useful to know that the telescope would have a 63.2% likelihood of detecting that event in the same 25.6 second time period. In the other direction, we ...
Architecture for in-space robotic assembly of a modular space
... additional constraints, including severe limitations on overall launch vehicle volume and mass capacity. Both ground- and space-based telescopes are, of course, also limited by overall cost to justify scientific return. In this paper, we present an architecture and conceptual design for a roboticall ...
... additional constraints, including severe limitations on overall launch vehicle volume and mass capacity. Both ground- and space-based telescopes are, of course, also limited by overall cost to justify scientific return. In this paper, we present an architecture and conceptual design for a roboticall ...
AstroMaster Series Telescopes
... The diagonal is a prism that diverts the light at a right angle to the light path of the refractor. This allows you to observe in a position that is more comfortable than if you looked straight through. This diagonal is an erect image model that corrects the image to be right side up and oriented co ...
... The diagonal is a prism that diverts the light at a right angle to the light path of the refractor. This allows you to observe in a position that is more comfortable than if you looked straight through. This diagonal is an erect image model that corrects the image to be right side up and oriented co ...
18. Formation of Stars.
... energy from its surface. • During its slow contraction phase, the protostar converts gravitational energy into heat energy. Half the energy is radiated into space and the other half goes to further raise the temperature of the protostar's core. • Finally, when the core is hot enough (about 15, ...
... energy from its surface. • During its slow contraction phase, the protostar converts gravitational energy into heat energy. Half the energy is radiated into space and the other half goes to further raise the temperature of the protostar's core. • Finally, when the core is hot enough (about 15, ...
Crowdclass Supplemental Materials - Doris Jung
... • Tidal debris is due to the highly active active-galactic centers that ejects out the unnecessary dust and gas that the galaxy does not need to survive. • The name “tidal debris” comes from the fact that stellar interactions within a galaxy produce irregular, often tail-like, structure that often l ...
... • Tidal debris is due to the highly active active-galactic centers that ejects out the unnecessary dust and gas that the galaxy does not need to survive. • The name “tidal debris” comes from the fact that stellar interactions within a galaxy produce irregular, often tail-like, structure that often l ...
Alpha Centauri 3
... The distance separating Alpha Centauri A from its companion star B averages 23.7 AUs (semi-major axis of 17.57" with a HIPPARCOS distance estimate of 4.40 light-years). The stars swings between 11.4 and 36.0 AUs away in a highly elliptical orbit (e= 0.52) that takes almost 80 (79.90) years to comple ...
... The distance separating Alpha Centauri A from its companion star B averages 23.7 AUs (semi-major axis of 17.57" with a HIPPARCOS distance estimate of 4.40 light-years). The stars swings between 11.4 and 36.0 AUs away in a highly elliptical orbit (e= 0.52) that takes almost 80 (79.90) years to comple ...
January 2013 - astronomy for beginners
... Rigel is in fact the largest of a system of three stars, all orbiting each other. The second brightest member of this group, which is a double itself, is visible using a modest telescope but is small and faint compared to its big brother Rigel. The stars in the Rigel system are true members of Orion ...
... Rigel is in fact the largest of a system of three stars, all orbiting each other. The second brightest member of this group, which is a double itself, is visible using a modest telescope but is small and faint compared to its big brother Rigel. The stars in the Rigel system are true members of Orion ...
The Transiting Exoplanet Survey Satellite
... its host star. For such a “transiting” planet, it is possible to determine the planet’s mass and radius, its orbital parameters, and its atmospheric properties.1 Of particular interest are planets with sizes between those of the Earth and Neptune. Little is known about them, because there are no exa ...
... its host star. For such a “transiting” planet, it is possible to determine the planet’s mass and radius, its orbital parameters, and its atmospheric properties.1 Of particular interest are planets with sizes between those of the Earth and Neptune. Little is known about them, because there are no exa ...
Document
... limit performance (l is in meters and z is the zenith distance) r0 is 10-20 cm at zero zenith distance at good sites To compensate adequately the wavefront the AO should have at least D/r0 elements ...
... limit performance (l is in meters and z is the zenith distance) r0 is 10-20 cm at zero zenith distance at good sites To compensate adequately the wavefront the AO should have at least D/r0 elements ...
Events: - Temecula Valley Astronomers
... toward the dusk horizon, with Jupiter sprinting ahead for a few days. But Venus actually catches up to Jupiter by July 31. Venus will reach inferior conjunction with the Sun on August 15. As high as Venus is after sunset as I write this in mid-June, it’ll be gone from the evening sky within two mont ...
... toward the dusk horizon, with Jupiter sprinting ahead for a few days. But Venus actually catches up to Jupiter by July 31. Venus will reach inferior conjunction with the Sun on August 15. As high as Venus is after sunset as I write this in mid-June, it’ll be gone from the evening sky within two mont ...
Polar Alignment in Southern Hemisphere - Downloads
... meridian. Both stars should be near the celestial equator (i.e., 0° declination). You will monitor the drift of each star one at a time and in declination only. While monitoring a star on the meridian, any misalignment in the east-west direction is revealed. While monitoring a star near the east/wes ...
... meridian. Both stars should be near the celestial equator (i.e., 0° declination). You will monitor the drift of each star one at a time and in declination only. While monitoring a star on the meridian, any misalignment in the east-west direction is revealed. While monitoring a star near the east/wes ...
DIY Astronomy – Electronic Telescope Focuser
... Could I be a part of the ultra Cool Guy Astronomers? ...
... Could I be a part of the ultra Cool Guy Astronomers? ...
Unit 6: Astronomy
... Copernicus lived during the height of the Renaissance period when men from a higher social class were expected to receive well-rounded educations. In 1491, Copernicus attended the University of Krakow where he studied mathematics and astronomy. After four years of study, his uncle appointed Copernic ...
... Copernicus lived during the height of the Renaissance period when men from a higher social class were expected to receive well-rounded educations. In 1491, Copernicus attended the University of Krakow where he studied mathematics and astronomy. After four years of study, his uncle appointed Copernic ...
tut44 Making A Mirror Grinding Tool
... surface is measured. Good grinding technique will produce a spherical shape, therefore the only important property needing measurement is the depth of the concave surface at the center of the mirror. The easiest way to do this is by placing a stiff metallic straight edge across the mirror face cente ...
... surface is measured. Good grinding technique will produce a spherical shape, therefore the only important property needing measurement is the depth of the concave surface at the center of the mirror. The easiest way to do this is by placing a stiff metallic straight edge across the mirror face cente ...
Planet Discoverer Interferometer I: PD!, a potential precursor to
... The major event since the release of the Ex-NPS report is the dramatic development of low-cost lightweight optics for NGST. Steward Observatory Mirror Lab has modified technology that was being developed to make adaptive optics secondaries for the MMT conversion and for the Large Binocular Telescope ...
... The major event since the release of the Ex-NPS report is the dramatic development of low-cost lightweight optics for NGST. Steward Observatory Mirror Lab has modified technology that was being developed to make adaptive optics secondaries for the MMT conversion and for the Large Binocular Telescope ...
Photoelectric Photometry of the Pleiades
... SN Ratio is directly proportional to the square root of the total collected raw counts. Take star readings for each star listed on the Data Sheet. Use the right ascension and declination given in this table to locate the star. Measure the B and V apparent magnitudes. Collect data through the U Filte ...
... SN Ratio is directly proportional to the square root of the total collected raw counts. Take star readings for each star listed on the Data Sheet. Use the right ascension and declination given in this table to locate the star. Measure the B and V apparent magnitudes. Collect data through the U Filte ...
a High-Mass Protostar with a Rotating Disk.
... disks around high–mass protostars, because of confusion and poor spatial ...
... disks around high–mass protostars, because of confusion and poor spatial ...
FORCAST: Haro 3
... We turn to observations of an extended source, chosen randomly from the Design Reference Manual (DRM). Haro 3 is a Blue Compact Dwarf (BCD) galaxy has been observed by Spitzer (Figure 1), along with several other infrared observatories (Figure 2), and serves as a good example of how observations of ...
... We turn to observations of an extended source, chosen randomly from the Design Reference Manual (DRM). Haro 3 is a Blue Compact Dwarf (BCD) galaxy has been observed by Spitzer (Figure 1), along with several other infrared observatories (Figure 2), and serves as a good example of how observations of ...
Paper
... 2. Background On October 3rd, 1957, space systems were the objects of fiction and dreams. On October 4th 1957, with the launch of Sputnik [1], artificial satellites became an unknown reality. Over the past 51 years, space systems have found their way into almost every aspect of daily life. With more ...
... 2. Background On October 3rd, 1957, space systems were the objects of fiction and dreams. On October 4th 1957, with the launch of Sputnik [1], artificial satellites became an unknown reality. Over the past 51 years, space systems have found their way into almost every aspect of daily life. With more ...
SEEDS
... instability is satisfied, gas giants would be formed very rapidly by the disk instability. Examining the conditions for gas giant formation in two models with respect to metallicity dependence, Matsuo et al. (2007) revisited this issue and concluded that although most of the planets detected so far ...
... instability is satisfied, gas giants would be formed very rapidly by the disk instability. Examining the conditions for gas giant formation in two models with respect to metallicity dependence, Matsuo et al. (2007) revisited this issue and concluded that although most of the planets detected so far ...
Starburst Galaxies Under the Microscope: High
... the total 15 µm luminosity of the entire system (Mirabel et al. 1998). This region is covered by a prominent dust lane and may be associated with a faint, red source in Hubble Space Telescope (HST) images, illustrating how optical data alone are insufficient to identify and study the youngest star-f ...
... the total 15 µm luminosity of the entire system (Mirabel et al. 1998). This region is covered by a prominent dust lane and may be associated with a faint, red source in Hubble Space Telescope (HST) images, illustrating how optical data alone are insufficient to identify and study the youngest star-f ...
OSP2016Level 3 Map - Oregon Star Party
... What is it? V404 Cyg is a black hole (12+/- 3 solar masses) with late K or early G type stellar companion that’s slightly smaller than the Sun, orbiting each other in less than 6.5 days. They are approximately 7800 light years away. Why you want to see it: The stellar companion is distorted into a ...
... What is it? V404 Cyg is a black hole (12+/- 3 solar masses) with late K or early G type stellar companion that’s slightly smaller than the Sun, orbiting each other in less than 6.5 days. They are approximately 7800 light years away. Why you want to see it: The stellar companion is distorted into a ...
FORMATION AND ORBIT OF HOT JUPITERS 1 Formation and Orbit
... Hot Jupiters tend to have other planetary bodies nearby, some of which are Earth-like. We use Hot Jupiters to study orbital patterns of solar systems and to locate possible terrestrial planets that can support life. We have discovered recently that the Hot Jupiter migration path may not be as destru ...
... Hot Jupiters tend to have other planetary bodies nearby, some of which are Earth-like. We use Hot Jupiters to study orbital patterns of solar systems and to locate possible terrestrial planets that can support life. We have discovered recently that the Hot Jupiter migration path may not be as destru ...
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.