Appendix: Support manual for prism spectrometer
... Schuster's method is based on the fact that the effect of the prism on the divergence of the beam is different on opposite sides of this minimum deviation position (see Fig. 2). The emergent beam will be less divergent (or more divergent) than the incident beam as the angle of incidence is increase ...
... Schuster's method is based on the fact that the effect of the prism on the divergence of the beam is different on opposite sides of this minimum deviation position (see Fig. 2). The emergent beam will be less divergent (or more divergent) than the incident beam as the angle of incidence is increase ...
Galileo & the Telescope—Sept 21
... in a few days she was reduced to a semicircle. She maintained this shape for many days, all the while, however, growing in size. At present, she is becoming sickle-shaped… ...
... in a few days she was reduced to a semicircle. She maintained this shape for many days, all the while, however, growing in size. At present, she is becoming sickle-shaped… ...
featured in the Arizona Daily Star
... piece of a star and study it in the laboratory. That’s what I do — I study pieces of ancient stardust. But instead of using a telescope, I use a microscope to look for stardust inside meteorites. Over their lifetimes, stars shed matter that can condense into solid mineral grains — stardust — if cond ...
... piece of a star and study it in the laboratory. That’s what I do — I study pieces of ancient stardust. But instead of using a telescope, I use a microscope to look for stardust inside meteorites. Over their lifetimes, stars shed matter that can condense into solid mineral grains — stardust — if cond ...
The Milky Way Galaxy
... • 1920 - Kapteyn used a greater number of star counts and came to roughly the same conclusion Star Counts: If stars are distributed uniformly in space, then in any patch of sky, the total number of stars with flux less than a limiting flux, f is: ...
... • 1920 - Kapteyn used a greater number of star counts and came to roughly the same conclusion Star Counts: If stars are distributed uniformly in space, then in any patch of sky, the total number of stars with flux less than a limiting flux, f is: ...
Astrophotography
... The guide camera is a simple CCD sensor that regularly takes short exposures of an area of sky near the object being imaged. After each image is captured, its controller measures the apparent motion of one or more stars within it’s view and issues the appropriate corrections to the telescope's (comp ...
... The guide camera is a simple CCD sensor that regularly takes short exposures of an area of sky near the object being imaged. After each image is captured, its controller measures the apparent motion of one or more stars within it’s view and issues the appropriate corrections to the telescope's (comp ...
powerpoint file
... We are confident that very massive black holes exist at the centers of most galaxies. Black holes of a few solar masses are believed to form when massive stars undergo core collapse if the collapsed core exceeds the maximum of ~ 3 M permitted for neutron stars. The best evidence for such black hole ...
... We are confident that very massive black holes exist at the centers of most galaxies. Black holes of a few solar masses are believed to form when massive stars undergo core collapse if the collapsed core exceeds the maximum of ~ 3 M permitted for neutron stars. The best evidence for such black hole ...
2010-02 LAAS Bulletin I - Los Angeles Astronomical Society
... Planetary Nebula NGC 2440, seen in this HST image, was left behind by a star about 1 solar mass. Our sun will eventually make a planetary nebula like this one, the material of which will include the evaporated Earth. ...
... Planetary Nebula NGC 2440, seen in this HST image, was left behind by a star about 1 solar mass. Our sun will eventually make a planetary nebula like this one, the material of which will include the evaporated Earth. ...
Some Examples of Virtual Observatory Enabled Science What Are the Some Distinguishing
... • They are highly energetic manifestations in the nuclei of galaxies, believed to be powered by accretion onto massive black holes • Empirical classification schemes and various types have been developed, on the basis of the spectra; but recently, various unification schemes have been developed to e ...
... • They are highly energetic manifestations in the nuclei of galaxies, believed to be powered by accretion onto massive black holes • Empirical classification schemes and various types have been developed, on the basis of the spectra; but recently, various unification schemes have been developed to e ...
Measuring the ligth
... comet, we can distinguish and specify the incoming light from different areas of the object, we define then, the intensity, <>, as the radiated energy per second by a region of the object that we can see under a solid angle of one square second. If we add the light coming from all the areas of th ...
... comet, we can distinguish and specify the incoming light from different areas of the object, we define then, the intensity, <>, as the radiated energy per second by a region of the object that we can see under a solid angle of one square second. If we add the light coming from all the areas of th ...
Basic Astronomical Estimates
... approximately 1.3 × 106 times that of the Earth [12]. These known dimensions are the result of a continuous increase during the Sun’s life and will continue to grow over billions of years until the Sun becomes a red giant, roughly 700 times bigger and 1.4 × 104 times brighter. Though the Sun will in ...
... approximately 1.3 × 106 times that of the Earth [12]. These known dimensions are the result of a continuous increase during the Sun’s life and will continue to grow over billions of years until the Sun becomes a red giant, roughly 700 times bigger and 1.4 × 104 times brighter. Though the Sun will in ...
Presentation
... to study the origin of solar variability and to characterize and understand the Sun’s interior and the various components of magnetic activity. ...
... to study the origin of solar variability and to characterize and understand the Sun’s interior and the various components of magnetic activity. ...
elementary measuring stars
... The proper motion of a star refers to its annual displacement in the sky relative to a fixed coordinate grid. Proper motion angles are much larger than parallax angles. ...
... The proper motion of a star refers to its annual displacement in the sky relative to a fixed coordinate grid. Proper motion angles are much larger than parallax angles. ...
Nicolaus Copernicus – 500 years of experimental science
... Five of seven Copernicus postulates are very precise 1. Celestial bodies do not all revolve around a single point; 2. The centre of Earth is the centre of the lunar sphere—the orbit of the moon around the Earth; 3. All the spheres rotate around the Sun, which is near the centre of the Universe; 4. ...
... Five of seven Copernicus postulates are very precise 1. Celestial bodies do not all revolve around a single point; 2. The centre of Earth is the centre of the lunar sphere—the orbit of the moon around the Earth; 3. All the spheres rotate around the Sun, which is near the centre of the Universe; 4. ...
Participant Handout - Math Machines Home
... a very large “red giant,” with a diameter about 600 times that of our Sun. (If our Sun were that large, it would engulf the Earth and extend well beyond the orbit of Mars.) The actual power of a star (the quantity of light it emits per second) is called its “luminosity” and can be measured either in ...
... a very large “red giant,” with a diameter about 600 times that of our Sun. (If our Sun were that large, it would engulf the Earth and extend well beyond the orbit of Mars.) The actual power of a star (the quantity of light it emits per second) is called its “luminosity” and can be measured either in ...
Introduction to Galaxies and Cosmology Exercises 2
... 6. If the Sun suddenly collapsed to a black hole, a) at what distance from the solar centre would the event horizon lie? b) What would the period of the Earth’s revolution around the Sun be? 7. For every mass m which is swallowed by a black hole (via an accretion disk, say), an amount of energy νmc ...
... 6. If the Sun suddenly collapsed to a black hole, a) at what distance from the solar centre would the event horizon lie? b) What would the period of the Earth’s revolution around the Sun be? 7. For every mass m which is swallowed by a black hole (via an accretion disk, say), an amount of energy νmc ...
Directed Reading A
... _____ 5. Which one of the following is NOT true about stars? a. A star goes through many changes during its life cycle. b. A star can become a different type of star as it gets older. c. A star can be classified as more than one type of star during its life cycle. d. A star does not change during it ...
... _____ 5. Which one of the following is NOT true about stars? a. A star goes through many changes during its life cycle. b. A star can become a different type of star as it gets older. c. A star can be classified as more than one type of star during its life cycle. d. A star does not change during it ...
The Night Sky This Month - Usk Astronomical Society
... Sporadics are loners, not associated with any one part of the sky, entering our atmosphere from all directions and therefore they require much more patience to observe than do showers which emanate from one part of the sky. Piscid meteor showers have weak meteors with multiple-radiants which are at ...
... Sporadics are loners, not associated with any one part of the sky, entering our atmosphere from all directions and therefore they require much more patience to observe than do showers which emanate from one part of the sky. Piscid meteor showers have weak meteors with multiple-radiants which are at ...
Detection Technique for Artificially-Illuminated Objects in the Outer
... should exhibit α = −2. The required photometric precision of better than a percent for such measurements (over timescales of years) can be easily achieved with modern telescopes. If objects with α = −2 are discovered, follow-up observations with long exposures on 8 − 10 meter and space telescopes co ...
... should exhibit α = −2. The required photometric precision of better than a percent for such measurements (over timescales of years) can be easily achieved with modern telescopes. If objects with α = −2 are discovered, follow-up observations with long exposures on 8 − 10 meter and space telescopes co ...
Stars and Planets - The University of Texas at Dallas
... The Pleiades is a famous cluster of young stars visible in the constellation Taurus. When most of the gas and dust is gone from a stellar nursery, the young stars are in an open cluster. One day these star systems will drift apart. Image source: http://antwrp.gsfc.nasa.gov/apod/ap021201.html ...
... The Pleiades is a famous cluster of young stars visible in the constellation Taurus. When most of the gas and dust is gone from a stellar nursery, the young stars are in an open cluster. One day these star systems will drift apart. Image source: http://antwrp.gsfc.nasa.gov/apod/ap021201.html ...
Slide 1
... •Ellipticals have lots of globular clusters (about twice that of disk galaxies) •these fall into two groups based on color •color determined by metallicity, with more metal-rich GCs (redder) possibly the result of galaxy mergers •Ellipticals have much less cool, atomic gas than spiral galaxies •< 1 ...
... •Ellipticals have lots of globular clusters (about twice that of disk galaxies) •these fall into two groups based on color •color determined by metallicity, with more metal-rich GCs (redder) possibly the result of galaxy mergers •Ellipticals have much less cool, atomic gas than spiral galaxies •< 1 ...
Teleskop Modern
... diameter2 or diameter3, so the costeffectiveness of a ground-based telescope is roughly independent of size, or maybe even somewhat favoring smaller apertures Of course, there is some science that simply demands the largest telescopes ...
... diameter2 or diameter3, so the costeffectiveness of a ground-based telescope is roughly independent of size, or maybe even somewhat favoring smaller apertures Of course, there is some science that simply demands the largest telescopes ...
Chapter 30 Notes
... • Stars moving toward Earth are shifted slightly toward blue, which is called blue shift. • Stars moving away from Earth are shifted slightly toward red, which is called red shift. Distances to Stars • light-year the distance that light travels in one year. • Distances between the stars and Earth ar ...
... • Stars moving toward Earth are shifted slightly toward blue, which is called blue shift. • Stars moving away from Earth are shifted slightly toward red, which is called red shift. Distances to Stars • light-year the distance that light travels in one year. • Distances between the stars and Earth ar ...
Instructor Notes
... Photosphere is a thin layer (~300-500 km thick) of the sun which is opaque – so is “visible surface” of sun. Temp of photosphere ranges from ~4000-8000K, but mostly is 5700K (~10,000F). When we talk about the “temperature of a star”, we mean its photospheric temperature ...
... Photosphere is a thin layer (~300-500 km thick) of the sun which is opaque – so is “visible surface” of sun. Temp of photosphere ranges from ~4000-8000K, but mostly is 5700K (~10,000F). When we talk about the “temperature of a star”, we mean its photospheric temperature ...
114EQ-AR
... If the telescope is reasonably well aligned with the pole very little use of the telescope's Declination flexible cable control is necessary. Virtually all of the required telescope tracking will be in Right Ascension. For the purposes of casual visual telescopic observations, lining up the telescop ...
... If the telescope is reasonably well aligned with the pole very little use of the telescope's Declination flexible cable control is necessary. Virtually all of the required telescope tracking will be in Right Ascension. For the purposes of casual visual telescopic observations, lining up the telescop ...
Basic Properties of Stars
... Hertzsprung-Russell Diagram Beware of the selection effects in the HR Diagram HR diagram of the brightest stars in the night sky. HR diagram of the stars nearest to the Sun. ...
... Hertzsprung-Russell Diagram Beware of the selection effects in the HR Diagram HR diagram of the brightest stars in the night sky. HR diagram of the stars nearest to the Sun. ...
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.