Slide 1
... • A spectroscope works by breaking light into the wavelengths (or spectra) that make it up. Different wavelengths of light bend by different amounts, so it splits the light into its colors. Scientists can tell the elements present in a star by looking at its light through a spectroscope. Each eleme ...
... • A spectroscope works by breaking light into the wavelengths (or spectra) that make it up. Different wavelengths of light bend by different amounts, so it splits the light into its colors. Scientists can tell the elements present in a star by looking at its light through a spectroscope. Each eleme ...
The Big Four:
... – “dark star” with mass 3M Sun • distinguish from normal star, white dwarf, neutron star ...
... – “dark star” with mass 3M Sun • distinguish from normal star, white dwarf, neutron star ...
1B11 Foundations of Astronomy Star names and magnitudes
... mirror always presents the same geometry to the point source, irrespective of off-axis angle. Parabolic mirrors, which do not have spherical aberration, do suffer from coma, so are only effective in a narrow field around the optical axis. In Ritchy-Chretien (modified Cassegrain) telescopes, spherica ...
... mirror always presents the same geometry to the point source, irrespective of off-axis angle. Parabolic mirrors, which do not have spherical aberration, do suffer from coma, so are only effective in a narrow field around the optical axis. In Ritchy-Chretien (modified Cassegrain) telescopes, spherica ...
Telescopes and instruments
... mirror always presents the same geometry to the point source, irrespective of off-axis angle. Parabolic mirrors, which do not have spherical aberration, do suffer from coma, so are only effective in a narrow field around the optical axis. In Ritchy-Chretien (modified Cassegrain) telescopes, spherica ...
... mirror always presents the same geometry to the point source, irrespective of off-axis angle. Parabolic mirrors, which do not have spherical aberration, do suffer from coma, so are only effective in a narrow field around the optical axis. In Ritchy-Chretien (modified Cassegrain) telescopes, spherica ...
Pounds K. - X-ray Astronomy and Cosmology group group
... The Skylark research rocket • first test flight at Woomera in February 1957 • payload of 150 kg to 300 km • Sun, Moon and star-pointing versions from 1964 ...
... The Skylark research rocket • first test flight at Woomera in February 1957 • payload of 150 kg to 300 km • Sun, Moon and star-pointing versions from 1964 ...
Light and telescopes
... radio; ultraviolet; X-rays; and gamma rays. 3. Predict whether telescopes designed to gather a specific type of "light" should be placed on Earth or in orbit on the basis of "atmospheric windows". 4. Calculate how a telescope's light gathering ability, resolution, and magnification will change in re ...
... radio; ultraviolet; X-rays; and gamma rays. 3. Predict whether telescopes designed to gather a specific type of "light" should be placed on Earth or in orbit on the basis of "atmospheric windows". 4. Calculate how a telescope's light gathering ability, resolution, and magnification will change in re ...
Ch.4 lecture
... because they are so readily absorbed by matter. Thus it is difficult to tell where they came from, and to reconstruct the image. ...
... because they are so readily absorbed by matter. Thus it is difficult to tell where they came from, and to reconstruct the image. ...
X-ray Detectors
... photon- thus the readout time has to be less than the anticiated rate to get more than one photon per pixel per readout time- other wise get 'pile-up' ...
... photon- thus the readout time has to be less than the anticiated rate to get more than one photon per pixel per readout time- other wise get 'pile-up' ...
Because the Hubble telescope is located in space
... does not interfere with light from objects the telescope is aimed at. This lack of interference allows it to obtain clearer images than ground-based telescopes with much larger mirrors. In addition to collecting visible light, the Hubble telescope produces images of ultraviolet and infrared radiatio ...
... does not interfere with light from objects the telescope is aimed at. This lack of interference allows it to obtain clearer images than ground-based telescopes with much larger mirrors. In addition to collecting visible light, the Hubble telescope produces images of ultraviolet and infrared radiatio ...
Exploring Space with an Astronaut
... telescope Something you look through to make things far away seem nearer and larger ...
... telescope Something you look through to make things far away seem nearer and larger ...
First results of observations with 80
... • Installation UBVRI filter wheel to start photometry observations • Control system renewal and stepper motors replacement by DC motors with encoders to improve the throughput of telescope • To change CHAOS control software on FORTE to increase stability of operations ...
... • Installation UBVRI filter wheel to start photometry observations • Control system renewal and stepper motors replacement by DC motors with encoders to improve the throughput of telescope • To change CHAOS control software on FORTE to increase stability of operations ...
中国mini-SONG项目技术方案介绍
... Overview of the mini-SONG project mini-SONG telescopes mini-SONG instruments progress and project schedule ...
... Overview of the mini-SONG project mini-SONG telescopes mini-SONG instruments progress and project schedule ...
day14a
... produce better images. But you have to quit before dawn, so the exposure time of the photo is obviously limited. ...
... produce better images. But you have to quit before dawn, so the exposure time of the photo is obviously limited. ...
Sledging on Mars
... The NASA team behind the Curiosity rover and the Mars Science Laboratory have stitched together a billion-pixel view of Mars from the rover’s data so far. Observers on-line can pan and zoom though a 360° panorama around Rocknest – the place where the rover started to analyse samples of soil and rock ...
... The NASA team behind the Curiosity rover and the Mars Science Laboratory have stitched together a billion-pixel view of Mars from the rover’s data so far. Observers on-line can pan and zoom though a 360° panorama around Rocknest – the place where the rover started to analyse samples of soil and rock ...
X Ray Astronomy
... example the energies of the photons, give a greater insight into what is going on in the object under study ...
... example the energies of the photons, give a greater insight into what is going on in the object under study ...
X-ray Astronomy
... they'd look like a point source to us. But what happens to gas streams that escape to farther distances? The extended hot stuff in the middle of the new image gives demanding new conditions for any theory to meet." ...
... they'd look like a point source to us. But what happens to gas streams that escape to farther distances? The extended hot stuff in the middle of the new image gives demanding new conditions for any theory to meet." ...
Chapter 5 Lecture 3
... • Nothing short of going to space can solve problem of atmospheric absorption of light. ...
... • Nothing short of going to space can solve problem of atmospheric absorption of light. ...
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... • CMOS = Complementary Metal Oxide Semiconductor; it’s a process, not a particular device ...
... • CMOS = Complementary Metal Oxide Semiconductor; it’s a process, not a particular device ...
Telescopes & Light: Part 3 All About Telescopes
... – Adaptive optics - changes the shape of the mirror (mirror resembles a “honeycomb” shape with many small mirrors making up the primary mirror - each mirror can be moved independently to achieve the best focus). Usually focus telescope using a laser. See below right. ...
... – Adaptive optics - changes the shape of the mirror (mirror resembles a “honeycomb” shape with many small mirrors making up the primary mirror - each mirror can be moved independently to achieve the best focus). Usually focus telescope using a laser. See below right. ...
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).