astronomy
... transfers energy and information through interstellar space. List the major regions of the electromagnetic spectrum and explain how the properties of the Earth’s atmosphere affect our ability to make astronomical observations at different wavelengths. Explain what is meant by the term ”black body” r ...
... transfers energy and information through interstellar space. List the major regions of the electromagnetic spectrum and explain how the properties of the Earth’s atmosphere affect our ability to make astronomical observations at different wavelengths. Explain what is meant by the term ”black body” r ...
astro 001.101 summer 2002 exam 2
... As Earth (the blue disk) circles the Sun, we might expect to see a nearby star shift its position relative to more distant stars (an example of the “parallax effect”) This effect is not observed (using only the naked eye); consequently the Greeks concluded that Earth does not orbit the Sun. However, ...
... As Earth (the blue disk) circles the Sun, we might expect to see a nearby star shift its position relative to more distant stars (an example of the “parallax effect”) This effect is not observed (using only the naked eye); consequently the Greeks concluded that Earth does not orbit the Sun. However, ...
Synopsis by Stacie Hvisc
... Active optics refers to the technique of actively correcting telescope errors through actively actuated mirror supports and is standard on all large telescopes built today. Nearly 20 years old, this is one of the original papers on active optics and explains the theoretical principles behind this te ...
... Active optics refers to the technique of actively correcting telescope errors through actively actuated mirror supports and is standard on all large telescopes built today. Nearly 20 years old, this is one of the original papers on active optics and explains the theoretical principles behind this te ...
Inexpensive mount for a large millimeter
... performance using active control based on strut temperature measurements, without the cost and complexity of a panel edge sensor system. Thermal deformation of the primary can be calculated using a finite element model, but the model must be optimized based on surface error measurements with differe ...
... performance using active control based on strut temperature measurements, without the cost and complexity of a panel edge sensor system. Thermal deformation of the primary can be calculated using a finite element model, but the model must be optimized based on surface error measurements with differe ...
Your first - Kerry International Dark
... well-respected astronomical dealer, like the advertisers in this magazine. Avoid the cheap, poor-quality models you sometimes see in mail order catalogues or in high ...
... well-respected astronomical dealer, like the advertisers in this magazine. Avoid the cheap, poor-quality models you sometimes see in mail order catalogues or in high ...
ppt
... – The Sun and the other bodies orbit around a common center of mass – The Sun is so massive that it is very close to the center of mass and moves very little – Orbits are elliptical, but very slightly so ...
... – The Sun and the other bodies orbit around a common center of mass – The Sun is so massive that it is very close to the center of mass and moves very little – Orbits are elliptical, but very slightly so ...
Stellar Properties
... ____ for the first time: a=mass, b=temperature, c=age, d=Hydrogen content, 3. For the eclipsing binary, we can observe ____ to determine their motion. A=Doppler shift, b=Luminosity, c=apparent magnitude (brightness), d=temperature change ...
... ____ for the first time: a=mass, b=temperature, c=age, d=Hydrogen content, 3. For the eclipsing binary, we can observe ____ to determine their motion. A=Doppler shift, b=Luminosity, c=apparent magnitude (brightness), d=temperature change ...
Oct 2011 - Bays Mountain Park
... the sky the night of October28/29. Jupiter is usually an average of about half a billion miles from Earth. This month it is only 369 million miles from us. Through your telescope, the planet has many different features to observe and is especially nice if the sky is steady. The first thing to catch y ...
... the sky the night of October28/29. Jupiter is usually an average of about half a billion miles from Earth. This month it is only 369 million miles from us. Through your telescope, the planet has many different features to observe and is especially nice if the sky is steady. The first thing to catch y ...
PPT
... How massive are stars? • The overall range of stellar masses runs from 0.08 times the mass of the Sun to about 150 times the mass of the Sun. • Masses are only known for stars that form binary systems, but about half of all stars are in fact in binary systems! – 0.08 MSun is approximately 80 MJupit ...
... How massive are stars? • The overall range of stellar masses runs from 0.08 times the mass of the Sun to about 150 times the mass of the Sun. • Masses are only known for stars that form binary systems, but about half of all stars are in fact in binary systems! – 0.08 MSun is approximately 80 MJupit ...
Galileo & the Telescope—Sept 23 • Announcements • Outline
... apple is from the center of earth. • The acceleration of gravity of earth on moon is 3600 times weaker than aogoeo apple. • Therefore force of gravity depends on 1/distance2. ...
... apple is from the center of earth. • The acceleration of gravity of earth on moon is 3600 times weaker than aogoeo apple. • Therefore force of gravity depends on 1/distance2. ...
Article Reference - Archive ouverte UNIGE
... from the Kepler results. Johnson et al. (2010) have made a case that, because no hot Jupiter was known to orbit an M dwarf, their occurrence must therefore be lower. Not long afterwards, Johnson et al. (2012) announced the discovery of a transiting gas giant around a star observed by Kepler, KOI-254 ...
... from the Kepler results. Johnson et al. (2010) have made a case that, because no hot Jupiter was known to orbit an M dwarf, their occurrence must therefore be lower. Not long afterwards, Johnson et al. (2012) announced the discovery of a transiting gas giant around a star observed by Kepler, KOI-254 ...
Photoelectric Photometry of the Pleiades
... • Log in and enter student information. • Access and display the Help screens. • Familiarize yourself with the controls. • Open the observatory. • Take “sky” counts. • Take “star” readings, and record your results. Using the Photometry Program Starting the Program Start the Photometry program by dou ...
... • Log in and enter student information. • Access and display the Help screens. • Familiarize yourself with the controls. • Open the observatory. • Take “sky” counts. • Take “star” readings, and record your results. Using the Photometry Program Starting the Program Start the Photometry program by dou ...
Symposium on Telescope Science - Society for Astronomical Sciences
... pursuit of science with your telescope, all elements must be well understood and in perfect functioning order. The telescope is the collection instrument and must be well maintained. If a “goto” mount is being used, a small computer with controlling software will improve data collection productivity ...
... pursuit of science with your telescope, all elements must be well understood and in perfect functioning order. The telescope is the collection instrument and must be well maintained. If a “goto” mount is being used, a small computer with controlling software will improve data collection productivity ...
Atmospheric Spatial and Temporal Seeing Monitor Using Portable
... it is possible to read out a small subframe at high speed if: 1. No charge clearing is performed prior to the exposure. 2. The subframe is at the CCD corner closest to the readout register. 3. No clocking is performed after the subframe has been read out. 4. The readout is triggered by a hardware in ...
... it is possible to read out a small subframe at high speed if: 1. No charge clearing is performed prior to the exposure. 2. The subframe is at the CCD corner closest to the readout register. 3. No clocking is performed after the subframe has been read out. 4. The readout is triggered by a hardware in ...
September Globular Clusters - Salisbury Plain Observing Group
... seeing dark patches in the cluster giving the impression of “eyes” in 8” of aperture. Pressing onto Lyra now and M56; at only a third of the mass of M13, it is has been described as a good “non comet”. It is fairly easy to find, lying south west of an open chevron shaped asterism. It is around 55 li ...
... seeing dark patches in the cluster giving the impression of “eyes” in 8” of aperture. Pressing onto Lyra now and M56; at only a third of the mass of M13, it is has been described as a good “non comet”. It is fairly easy to find, lying south west of an open chevron shaped asterism. It is around 55 li ...
ML 5037-40
... grating, this beam line can provide soft X rays from 80 eV to 1900 eV. Four setups were used in our measurement and the conditions are summarized in table 1. When we measured the transmission in the low energy, we used a Ni double-mirror system to eliminate the higher order light. The measurement co ...
... grating, this beam line can provide soft X rays from 80 eV to 1900 eV. Four setups were used in our measurement and the conditions are summarized in table 1. When we measured the transmission in the low energy, we used a Ni double-mirror system to eliminate the higher order light. The measurement co ...
File - Yupiit School District
... Explain that the changes in the motion of objects are determined by the mass of an object and the amount (size) of the force applied to it. a. Observe and give examples that show changes in speed or direction of motion are Mechanics caused by an interaction of forces acting on an object: Friction, G ...
... Explain that the changes in the motion of objects are determined by the mass of an object and the amount (size) of the force applied to it. a. Observe and give examples that show changes in speed or direction of motion are Mechanics caused by an interaction of forces acting on an object: Friction, G ...
Powerpoint file
... binning to 512 s exposure time. On-board processing returns only integrated flux in aperture. • 400 „oversampled“ apertures with 32 s sampling. This can be changed during the run • ~ 40 imagettes. Data from the full image inside the aperture is sent back ...
... binning to 512 s exposure time. On-board processing returns only integrated flux in aperture. • 400 „oversampled“ apertures with 32 s sampling. This can be changed during the run • ~ 40 imagettes. Data from the full image inside the aperture is sent back ...
Introduction
... Nearly all ancient civilisations practised astronomy at some level – Time of day or night – Seasons ...
... Nearly all ancient civilisations practised astronomy at some level – Time of day or night – Seasons ...
Chapter 5 Galaxies and Star Systems
... In the late 1960s, astronomers discovered objects that are very bright but also very far away. Many of these objects are ten billion light years or more away, making them among the most distant objects in the universe. These distant, enormously bright objects looked almost like stars. Since quasi me ...
... In the late 1960s, astronomers discovered objects that are very bright but also very far away. Many of these objects are ten billion light years or more away, making them among the most distant objects in the universe. These distant, enormously bright objects looked almost like stars. Since quasi me ...
Measuring Interstellar Extinction
... The interstellar extinction of starlight is the most indicative phenomenon revealing the presence of diffuse dark matter in the Galaxy. The first documented observation of extinction effects, appearing in the form of dark regions, is that of Sir William Herschel who in 1784 observed a section of the ...
... The interstellar extinction of starlight is the most indicative phenomenon revealing the presence of diffuse dark matter in the Galaxy. The first documented observation of extinction effects, appearing in the form of dark regions, is that of Sir William Herschel who in 1784 observed a section of the ...
Stellar Evolution - University of California, Santa Cruz
... temperature is <10 million K • Upper mass limit is around 100 solar masses set by inability for a star to hang on to its outer layers because high radiation pressure (high luminosity). ...
... temperature is <10 million K • Upper mass limit is around 100 solar masses set by inability for a star to hang on to its outer layers because high radiation pressure (high luminosity). ...
Xray_image_chain
... • Detected photons (“events”) are identified and extracted from the CCD image by software on board the spacecraft • Each event is “tagged” with essential attributes: – position – energy – time ...
... • Detected photons (“events”) are identified and extracted from the CCD image by software on board the spacecraft • Each event is “tagged” with essential attributes: – position – energy – time ...
Radio-quiet Isolated Neutron Stars
... Detected in the RASS between 1990/09/14~1990/10/02. Identified with the 1992/10/16 PSPC data. No variability at levels greater than ~1% in 1hr, or <30% on timescale up to 15 years. ...
... Detected in the RASS between 1990/09/14~1990/10/02. Identified with the 1992/10/16 PSPC data. No variability at levels greater than ~1% in 1hr, or <30% on timescale up to 15 years. ...
International Ultraviolet Explorer
The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.