AMiBA: Hexapod Commissioning and Pointing
... (red scatter) one iteration with interpolation table: pointing error in az, el reduced from 0.8 to 0.4 arcmin rms ...
... (red scatter) one iteration with interpolation table: pointing error in az, el reduced from 0.8 to 0.4 arcmin rms ...
Review Sheet and Study Hints - Tufts Institute of Cosmology
... draw evolutionary tracks in the HRD for stars of different masses comment on relative evolutionary time-scales globular cluster HRD’s main sequence turnoff and ages distance determinations use the HRD to determine star-formation histories in galaxies ...
... draw evolutionary tracks in the HRD for stars of different masses comment on relative evolutionary time-scales globular cluster HRD’s main sequence turnoff and ages distance determinations use the HRD to determine star-formation histories in galaxies ...
A Story about a Star`s Life
... • Brightest stars had magnitude 1 and dimmest had magnitude 6 • The system is still used today and units of measurement are called apparent magnitudes to emphasize how bright a star looks to an observer ...
... • Brightest stars had magnitude 1 and dimmest had magnitude 6 • The system is still used today and units of measurement are called apparent magnitudes to emphasize how bright a star looks to an observer ...
Astronomy 15 - Problem Set Number 4 1) Suppose one were to
... 2) Astronomers build big telescopes because the objects they deal with are so faint. For visible wavelengths and shorter, the amount of information an astronomer gets from an object is ultimately limited by the inherent ‘graininess’ of the signal – by the fact that the photon energy E = hν. This qu ...
... 2) Astronomers build big telescopes because the objects they deal with are so faint. For visible wavelengths and shorter, the amount of information an astronomer gets from an object is ultimately limited by the inherent ‘graininess’ of the signal – by the fact that the photon energy E = hν. This qu ...
Binaries
... From the study of the binaries we learn the mass of the stars. When we plot the mass of the stars vs. the light we receive from them, we see that there is a very strong dependence of luminosity on mass. Luminosity Mass ...
... From the study of the binaries we learn the mass of the stars. When we plot the mass of the stars vs. the light we receive from them, we see that there is a very strong dependence of luminosity on mass. Luminosity Mass ...
P1 topic 3 - WordPress.com
... (iii) One theory of the origin of the Universe predicted that there should be cosmic background radiation with a wavelength of about 1 mm. Explain why scientists had to wait until the development of space flight before they could study this radiation in detail. ...
... (iii) One theory of the origin of the Universe predicted that there should be cosmic background radiation with a wavelength of about 1 mm. Explain why scientists had to wait until the development of space flight before they could study this radiation in detail. ...
Properties of Stars
... Background: YES YOU HAVE TO READ THIS PART!! All stars are different. Some are small. Some are large. Every star is at a different stage in its life journey. Some have died and gone supernova, others are just dwindling white dwarfs that are cooling. Some stars are just being born in their nebulas. S ...
... Background: YES YOU HAVE TO READ THIS PART!! All stars are different. Some are small. Some are large. Every star is at a different stage in its life journey. Some have died and gone supernova, others are just dwindling white dwarfs that are cooling. Some stars are just being born in their nebulas. S ...
Kepler and K2 Missions | NASA
... analyze the data. Overall mission direction will be provided from the Mission Management and Science Offices hosted by the Science Operations Center (SOC) at NASA Ames Research Center (ARC) in Mountain View, California. Strategic mission planning and target selection is done at the SOC. Target selec ...
... analyze the data. Overall mission direction will be provided from the Mission Management and Science Offices hosted by the Science Operations Center (SOC) at NASA Ames Research Center (ARC) in Mountain View, California. Strategic mission planning and target selection is done at the SOC. Target selec ...
S1-4-05 - Seasonal Constelallations - Lesson
... Senior 1 Science, Cluster 4: Exploring the Universe. S1-4-02: Observe the motion of visible celestial objects and organize collected data. S1-4-05: Explain the apparent motion of the Sun, stars, planets, and the Moon as seen from Earth. Learner Difficulties There were many different learner difficul ...
... Senior 1 Science, Cluster 4: Exploring the Universe. S1-4-02: Observe the motion of visible celestial objects and organize collected data. S1-4-05: Explain the apparent motion of the Sun, stars, planets, and the Moon as seen from Earth. Learner Difficulties There were many different learner difficul ...
Early Spring Observing – Millstone News Night Sky
... To see the stars in the Spring Constellations, the Earth's orbit is in a locations such that night side points away from the Sun, towards the Constellations of Leo and Virgo. ...
... To see the stars in the Spring Constellations, the Earth's orbit is in a locations such that night side points away from the Sun, towards the Constellations of Leo and Virgo. ...
Activity 1: The Scientific Method
... 1) Start by becoming aware of your own biases. Do you believe any of the data is correlated? If so how? Relationship Example: radial motion of the stars and temperature Should state relationships that you believe might exist ...
... 1) Start by becoming aware of your own biases. Do you believe any of the data is correlated? If so how? Relationship Example: radial motion of the stars and temperature Should state relationships that you believe might exist ...
Debris Belts around Vega - Astronomical Society of the Pacific
... Model calculations predict that several planets (smaller than Jupiter) maintain a dust-free zone by sweeping up material in that gap. Thus it is likely that several yet-undetected planets reside in the gap between Vega’s belts. Could double belts be a hallmark of a multi-planet system? – focus futur ...
... Model calculations predict that several planets (smaller than Jupiter) maintain a dust-free zone by sweeping up material in that gap. Thus it is likely that several yet-undetected planets reside in the gap between Vega’s belts. Could double belts be a hallmark of a multi-planet system? – focus futur ...
Topic 11_4__Resolution
... well-resolved, just resolved and not resolved. 11.4.2 State the Rayleigh criterion for images of two sources to be just resolved. Know that the criterion for a circular aperture is = 1.22/b. 11.4.3 Describe the significance of resolution in the development of devices such as CDs and DVDs, the ele ...
... well-resolved, just resolved and not resolved. 11.4.2 State the Rayleigh criterion for images of two sources to be just resolved. Know that the criterion for a circular aperture is = 1.22/b. 11.4.3 Describe the significance of resolution in the development of devices such as CDs and DVDs, the ele ...
Exoplanet Discoveries and the Fermi Paradox
... and their expected lifetimes. Drake concluded that the number of intelligent species in the galaxy was on the order of one thousand to 100 million, with the nearest being perhaps 80-800 light years away. With Drake’s numbers, it appeared that we should hear from the extraterrestrials rather soon; bu ...
... and their expected lifetimes. Drake concluded that the number of intelligent species in the galaxy was on the order of one thousand to 100 million, with the nearest being perhaps 80-800 light years away. With Drake’s numbers, it appeared that we should hear from the extraterrestrials rather soon; bu ...
Spectra of Star Clusters
... spectral types are O, B, A, F, G, K, and M. These are subdivided into numbered categories; for example, the hottest A stars are type A0 and the coolest A stars are type A9, which is slightly ...
... spectral types are O, B, A, F, G, K, and M. These are subdivided into numbered categories; for example, the hottest A stars are type A0 and the coolest A stars are type A9, which is slightly ...
Active Galactic Nuclei
... • Early radio telescopes found radio emission from stars, nebulae, and some galaxies. • There were also point-like, or star-like, radio sources which varied rapidly these are the `quasi-stellar’ radio sources or quasars. • In visible light quasars appear as points, like stars. ...
... • Early radio telescopes found radio emission from stars, nebulae, and some galaxies. • There were also point-like, or star-like, radio sources which varied rapidly these are the `quasi-stellar’ radio sources or quasars. • In visible light quasars appear as points, like stars. ...
Reach for the Stars B
... 4. What will eventually cause the dust and gas in this DSO to dissipate? 5. Which DSO, a very bright radio source, is depicted in Image [3]? 6. Why might this DSO not have been visible in the past? 7. Which DSO, a massive star-forming region, is depicted in Image [4]? 8. [T10] What is the common nic ...
... 4. What will eventually cause the dust and gas in this DSO to dissipate? 5. Which DSO, a very bright radio source, is depicted in Image [3]? 6. Why might this DSO not have been visible in the past? 7. Which DSO, a massive star-forming region, is depicted in Image [4]? 8. [T10] What is the common nic ...
New Meade 60 EQ-D 8-03
... Declination, the task of finding objects (in particular, faint objects) in the telescope is vastly simplified. The setting circles, R.A (34, Fig. 2) and Dec. (25, Fig. 2) of your telescope may be dialed, in effect, to read the object coordinates and the object found without resorting to visual locat ...
... Declination, the task of finding objects (in particular, faint objects) in the telescope is vastly simplified. The setting circles, R.A (34, Fig. 2) and Dec. (25, Fig. 2) of your telescope may be dialed, in effect, to read the object coordinates and the object found without resorting to visual locat ...
Light Introductory Prac
... two others to compare your questions and come up with a list of about six questions that the group thinks are worthwhile. When you have done this, your group will combine with another group and produce a list of about nine questions. After this, the questions from these large groups will be combined ...
... two others to compare your questions and come up with a list of about six questions that the group thinks are worthwhile. When you have done this, your group will combine with another group and produce a list of about nine questions. After this, the questions from these large groups will be combined ...
New initiatives - Major Instrumentation
... Assuming a detected S/N of 10 for NGST on a point source, with Comparative performance of a4x1000s 30m GSTM integration with a 6.5m NGST ...
... Assuming a detected S/N of 10 for NGST on a point source, with Comparative performance of a4x1000s 30m GSTM integration with a 6.5m NGST ...
globular cluster - Harding University
... As early as 1914, Slipher, working at the Lowell Observatory had observed that a large number of spiral galaxies that he had been studying exhibited a red shift in their spectra – indicating that most of these galaxies were moving away from us. During the 1920’s Edwin Hubble determined the distanc ...
... As early as 1914, Slipher, working at the Lowell Observatory had observed that a large number of spiral galaxies that he had been studying exhibited a red shift in their spectra – indicating that most of these galaxies were moving away from us. During the 1920’s Edwin Hubble determined the distanc ...
Distance Measurement in Astronomy
... The distance from the Earth of objects in the Solar System can be measured using radar. A pulse is sent out and the time taken for the reflected pulse to be received is recorded. Knowing the speed of radar in free space and the time between transmission and reception the radar pulse enables us to fi ...
... The distance from the Earth of objects in the Solar System can be measured using radar. A pulse is sent out and the time taken for the reflected pulse to be received is recorded. Knowing the speed of radar in free space and the time between transmission and reception the radar pulse enables us to fi ...
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.