The Sea of Clouds These images show cratered regions near the
... of the region photographed by one of the LROC cameras. Each band in this "venetian blinds" image is about 90 km (55.9 miles) wide. For comparison, the width of the locator image above is shown here as two white lines. Credit: NASA The satellite also has started to activate its six other instruments. ...
... of the region photographed by one of the LROC cameras. Each band in this "venetian blinds" image is about 90 km (55.9 miles) wide. For comparison, the width of the locator image above is shown here as two white lines. Credit: NASA The satellite also has started to activate its six other instruments. ...
Optics_JG
... Subcontractor manages his own manufacture tolerances and compensators, but using the same overall-system merit and prescription Integration of the barrel units can be carried out under relaxed tolerances (nominally 100 µm displacements and 3-arcmin tilts). Compensators: fold-mirror, back focus and o ...
... Subcontractor manages his own manufacture tolerances and compensators, but using the same overall-system merit and prescription Integration of the barrel units can be carried out under relaxed tolerances (nominally 100 µm displacements and 3-arcmin tilts). Compensators: fold-mirror, back focus and o ...
The Maksutov revolution
... on a two-tined fork mount and with short legs that permit tabletop use as an equatorial telescope. (It can also be tripod-mounted, alt-az, or polar/equatorial.) The package includes screw-in 16mm (81x) and 24mm (54x) eyepieces, a finder, and solar filters for the main telescope (sub-aperture) and fi ...
... on a two-tined fork mount and with short legs that permit tabletop use as an equatorial telescope. (It can also be tripod-mounted, alt-az, or polar/equatorial.) The package includes screw-in 16mm (81x) and 24mm (54x) eyepieces, a finder, and solar filters for the main telescope (sub-aperture) and fi ...
Slide 1
... This telescope is the fifth in my Moonsilver series, featuring a lightweight single-pole structure, compact focuser board and secondary assembly, and hybrid Dobsonian-fork mounting. Like a standard Dobsonian this is an “alt-az” telescope that moves vertically in altitude and horizontally in azimuth. ...
... This telescope is the fifth in my Moonsilver series, featuring a lightweight single-pole structure, compact focuser board and secondary assembly, and hybrid Dobsonian-fork mounting. Like a standard Dobsonian this is an “alt-az” telescope that moves vertically in altitude and horizontally in azimuth. ...
notes Mirrors j
... Size: The image is the SAME SIZE as the object. Attitude: The image is UPRIGHT (but left and right are reversed) Location: The image is the same distance, but it appears BEHIND the mirror Type: ...
... Size: The image is the SAME SIZE as the object. Attitude: The image is UPRIGHT (but left and right are reversed) Location: The image is the same distance, but it appears BEHIND the mirror Type: ...
The Imaging Chain for Optical Astronomy
... Optical Imaging Chain in Astronomy 5: processing 1: source 2: object ...
... Optical Imaging Chain in Astronomy 5: processing 1: source 2: object ...
Document
... Well known and understood technology Very good performances and low systematics Low cross-pol - below 40dB typically High efficiency, better than 25dB return loss Low sidelobes and good control of straylight ...
... Well known and understood technology Very good performances and low systematics Low cross-pol - below 40dB typically High efficiency, better than 25dB return loss Low sidelobes and good control of straylight ...
What does X-ray light show us?
... stars die), neutron stars and pulsars, and black holes are all sources of celestial gamma-rays. ...
... stars die), neutron stars and pulsars, and black holes are all sources of celestial gamma-rays. ...
Telescopes—3 Feb
... Chandra X-Ray telescope • Named after Chandrasekhar • Figured out speed of light limits mass of neutron stars & white dwarf stars ...
... Chandra X-Ray telescope • Named after Chandrasekhar • Figured out speed of light limits mass of neutron stars & white dwarf stars ...
PowerPoint - College of Engineering, Forestry, and Natural Sciences
... This project was meant to help align and quantify the alignment error of the mirrors in the Navy Prototype Optical Interferometer. Mirrors in the interferometer have to be aligned with respect to each other to one tenth of a millimeter. Mirrors need to be realigned regularly to support reconfigurati ...
... This project was meant to help align and quantify the alignment error of the mirrors in the Navy Prototype Optical Interferometer. Mirrors in the interferometer have to be aligned with respect to each other to one tenth of a millimeter. Mirrors need to be realigned regularly to support reconfigurati ...
Radio Telescope Basics
... • These are very Low-noise input amplifiers. • HFET Receivers are reliable and stable. They have an entire octave of bandwidth without unnecessary noise. What’s more, they’re cooled to keep the signal to noise ...
... • These are very Low-noise input amplifiers. • HFET Receivers are reliable and stable. They have an entire octave of bandwidth without unnecessary noise. What’s more, they’re cooled to keep the signal to noise ...
The eleventh annual AST poster session - Home
... Discovering and defining how space and time function has captured the interest of many famous theorists. Einstein used his theory of relativity and concepts from Newtonian Gravity to come up with his idea space-time. The concept of Space-time combines space (3 dimensions) and time (the 4th dimension ...
... Discovering and defining how space and time function has captured the interest of many famous theorists. Einstein used his theory of relativity and concepts from Newtonian Gravity to come up with his idea space-time. The concept of Space-time combines space (3 dimensions) and time (the 4th dimension ...
Temporal and Special Variance of chemical species in the
... Description of the potential science / science goals: Observation of integrated light across moon and Mercury with observation of Mercury magnetotail. Determination of exosphere composition to include, especially, atomic lines (sodium, potassium, calcium, hydrogen…). Daytime observations from Antarc ...
... Description of the potential science / science goals: Observation of integrated light across moon and Mercury with observation of Mercury magnetotail. Determination of exosphere composition to include, especially, atomic lines (sodium, potassium, calcium, hydrogen…). Daytime observations from Antarc ...
WSRT*s contributions to knowledge of neutron stars and black holes
... must be a BLACK HOLE .(In the paper they still allow also a supergiant mass 10Msun, which gives a companion>2 Msun) ...
... must be a BLACK HOLE .(In the paper they still allow also a supergiant mass 10Msun, which gives a companion>2 Msun) ...
Telescope
... 1) That the simulations are accurate and that the analysis techniques applied are valid. In this regard we have verified the simulation by comparing with analytical calculations, alternative simulations and actual experimental data. We have been able to reproduce trends seen in other, independent st ...
... 1) That the simulations are accurate and that the analysis techniques applied are valid. In this regard we have verified the simulation by comparing with analytical calculations, alternative simulations and actual experimental data. We have been able to reproduce trends seen in other, independent st ...
PowerPoint - Chandra X
... Such turbulence might affect the position of rocky, Earth-like planets as they form and prevent them from rapidly migrating towards the young star. Therefore, the survival chances of the Earth may have been enhanced by large flares from the young Sun. (Credit: NASA/CXC/Penn State/E.Feigelson & K.Get ...
... Such turbulence might affect the position of rocky, Earth-like planets as they form and prevent them from rapidly migrating towards the young star. Therefore, the survival chances of the Earth may have been enhanced by large flares from the young Sun. (Credit: NASA/CXC/Penn State/E.Feigelson & K.Get ...
Low-Res Version - Chandra X
... need detectors that are especially designed to see those other wavelengths, such as the instruments on Chandra. Sometimes images taken by telescopes that look at the "invisible" wavelengths are called "false color images". That is because the colors we use in them are not "real" but are chosen to br ...
... need detectors that are especially designed to see those other wavelengths, such as the instruments on Chandra. Sometimes images taken by telescopes that look at the "invisible" wavelengths are called "false color images". That is because the colors we use in them are not "real" but are chosen to br ...
Document
... composed of a mixture of non-volatile grains and frozen gases. •They have highly elliptical orbits that bring them very close to the Sun and swing them deeply into space, often beyond the orbit of Pluto. • Comet structures are diverse and very dynamic, but they all develop a surrounding cloud of dif ...
... composed of a mixture of non-volatile grains and frozen gases. •They have highly elliptical orbits that bring them very close to the Sun and swing them deeply into space, often beyond the orbit of Pluto. • Comet structures are diverse and very dynamic, but they all develop a surrounding cloud of dif ...
Telescope Tear-Down
... Line from centre to focal point Axis intersects mirror at 90 degrees Focal point halfway between centre and mirror See reflection of eye where axis intersects mirror ...
... Line from centre to focal point Axis intersects mirror at 90 degrees Focal point halfway between centre and mirror See reflection of eye where axis intersects mirror ...
What is X-ray Astronomy? - Extreme Universe Laboratory
... X-ray astronomy: 0.1 to 100 kev Gamma-ray astronomy: >100 kev. E=hn= k T ==> x-rays probe 106 -- 109 K and gamma-rays > 109 K Eddington Luminosity: 1.3x1038 erg/s for 1 Mo. (derive the Eddington limit) Optically thick blackbody radiation in x-ray requires a compact object! T as a function of object ...
... X-ray astronomy: 0.1 to 100 kev Gamma-ray astronomy: >100 kev. E=hn= k T ==> x-rays probe 106 -- 109 K and gamma-rays > 109 K Eddington Luminosity: 1.3x1038 erg/s for 1 Mo. (derive the Eddington limit) Optically thick blackbody radiation in x-ray requires a compact object! T as a function of object ...
XMM-Newton
The XMM-Newton, also known as the X-ray Multi-Mirror Mission and the High Throughput X-ray Spectroscopy Mission, is an orbiting X-ray observatory launched by ESA in December 1999 on an Ariane 5 rocket. It is named in honor of Sir Isaac Newton. The telescope was placed in a very eccentric 48 hour elliptical orbit at 40°; at its apogee it is nearly 114,000 kilometres (71,000 mi) from Earth, while the perigee is only 7,000 kilometres (4,300 mi).