May - RASC Hamilton
... Meade PST, which I purchased last year from the great guys at KW Telescope, and I really love it, but the Lunt equipment is the best in the world for solar observing, and it never fails to elicit gasps when you first view the Sun through it. Drop by, and say “Hi!” See you next month, if not before! ...
... Meade PST, which I purchased last year from the great guys at KW Telescope, and I really love it, but the Lunt equipment is the best in the world for solar observing, and it never fails to elicit gasps when you first view the Sun through it. Drop by, and say “Hi!” See you next month, if not before! ...
PH607lec07
... is such that the orbital speed of most stars in the galaxy does not depend strongly on its distance from the center. Away from the central bulge or outer rim, the typical stellar velocity is between 210 and 240 km/s. Hence the orbital period of the typical star is directly proportional only to the l ...
... is such that the orbital speed of most stars in the galaxy does not depend strongly on its distance from the center. Away from the central bulge or outer rim, the typical stellar velocity is between 210 and 240 km/s. Hence the orbital period of the typical star is directly proportional only to the l ...
(r) and
... However, in most systems, two integrals are not sufficient to fully characterize the stellar orbits. In fact, numerical calculations show that most orbits are not completely described by just two integrals, i.e. they admit a third integral. There is no general expression for this integral of motio ...
... However, in most systems, two integrals are not sufficient to fully characterize the stellar orbits. In fact, numerical calculations show that most orbits are not completely described by just two integrals, i.e. they admit a third integral. There is no general expression for this integral of motio ...
Class 10 Reflection and refraction of Light
... Hold a concave mirror in your hand and direct its reflecting surface towards the Sun. Adjust the concave mirror in such a way you find bright , sharp spot of light on the sheet of paper . This point is the focus of the concave mirror. The heat produced due to the concentration of sunlight ignites th ...
... Hold a concave mirror in your hand and direct its reflecting surface towards the Sun. Adjust the concave mirror in such a way you find bright , sharp spot of light on the sheet of paper . This point is the focus of the concave mirror. The heat produced due to the concentration of sunlight ignites th ...
Solving Problems with the Sloan Digital Sky Survey
... • Four data releases, with a possible fifth coming soon • Currently in “SDSS II” taking additional photometry and spectroscopy, also the Sloan Legacy Survey, SEGUE, and the Sloan Supernova Survey ...
... • Four data releases, with a possible fifth coming soon • Currently in “SDSS II” taking additional photometry and spectroscopy, also the Sloan Legacy Survey, SEGUE, and the Sloan Supernova Survey ...
16. Hubble`s Law and Dark Matter
... need between 3 and 10 times more mass than can be observed to explain their rotation curves. • The discrepancy is even larger in galaxy clusters, which need 10 to 100 times more mass. The total needed is more than the sum of the dark matter associated with each galaxy. ...
... need between 3 and 10 times more mass than can be observed to explain their rotation curves. • The discrepancy is even larger in galaxy clusters, which need 10 to 100 times more mass. The total needed is more than the sum of the dark matter associated with each galaxy. ...
Fossil Galaxies
... Astronomers and cosmologists have a problem on their hands. Their trusted computer simulations of the evolving universe predict that thousands of dwarf galaxies should currently exist in orbit around our Milky Way galaxy. However, only a few dozen dwarf galaxies have been observed. Called the “missi ...
... Astronomers and cosmologists have a problem on their hands. Their trusted computer simulations of the evolving universe predict that thousands of dwarf galaxies should currently exist in orbit around our Milky Way galaxy. However, only a few dozen dwarf galaxies have been observed. Called the “missi ...
L. Moustakas
... Clear evidence for a Balmer break between K and 3.6mm. Otherwise blue SED (above & below break) suggests low reddening, but this is not well constrained. ...
... Clear evidence for a Balmer break between K and 3.6mm. Otherwise blue SED (above & below break) suggests low reddening, but this is not well constrained. ...
Search for Life in the Universe
... • Many extrasolar giant planets (like Jupiter) discovered since 1995 • Detection by reflex motion of parent star • A few transitions seen • Terrestrial planets still below detection limit • Giant extrasolar planets very prevalent in nearby stars • No information, so far, on habitability ...
... • Many extrasolar giant planets (like Jupiter) discovered since 1995 • Detection by reflex motion of parent star • A few transitions seen • Terrestrial planets still below detection limit • Giant extrasolar planets very prevalent in nearby stars • No information, so far, on habitability ...
Meade® Ultra-High Transmission Coatings (UHTCTM) Group
... objects — from emission and planetary nebulae such as M8, M20, and M57 to star clusters and galaxies such as M3, M13, and M101. Observations of the Moon and planets, since they are observed in reflected (white) sunlight, benefit in image brightness from the full spectrum of increased transmission. T ...
... objects — from emission and planetary nebulae such as M8, M20, and M57 to star clusters and galaxies such as M3, M13, and M101. Observations of the Moon and planets, since they are observed in reflected (white) sunlight, benefit in image brightness from the full spectrum of increased transmission. T ...
Study of Space by the Electromagnetic Spectrum
... the light from Proxima Centauri takes 4.22 years to reach us. Our galaxy, the Milky Way Galaxy, is about 100,000 light-years across. So it takes light 100,000 years to travel from one side of the galaxy to the other! It turns out that even 100,000 light-years is a short distance. The most distant ga ...
... the light from Proxima Centauri takes 4.22 years to reach us. Our galaxy, the Milky Way Galaxy, is about 100,000 light-years across. So it takes light 100,000 years to travel from one side of the galaxy to the other! It turns out that even 100,000 light-years is a short distance. The most distant ga ...
CHAPTER – 10 LIGHT : REFLECTION AND REFRACTION
... When light travels obliquely from one transparent medium into another it gets bent. This bending of light is called refraction of light. When light travels from a rarer medium to a denser medium, it bends towards the normal. When light travels from a denser medium to a rarer medium to a rarer medium ...
... When light travels obliquely from one transparent medium into another it gets bent. This bending of light is called refraction of light. When light travels from a rarer medium to a denser medium, it bends towards the normal. When light travels from a denser medium to a rarer medium to a rarer medium ...
The Fine Scale Optical Range Peter Mack Grubb Texas - UB-SEDS
... any camera may be used, but accurate light curve determination requires a large number of images per revolution. If a high speed camera is unavailable, this can be achieved via electric motors capable of slow turn rates. In the case of FiScOR, the Silicone Imaging® SI640-HFRGB pictured in Fig. 7 was ...
... any camera may be used, but accurate light curve determination requires a large number of images per revolution. If a high speed camera is unavailable, this can be achieved via electric motors capable of slow turn rates. In the case of FiScOR, the Silicone Imaging® SI640-HFRGB pictured in Fig. 7 was ...
Testing relativity from the 1919 eclipse
... Principe. He assumed that the change of scale was the same as the one between the comparison plates taken in Oxford and the eclipse plates taken on Principe. He could then plug that number into his equations for those plates. Thus all of the measurement information he had available would be going to ...
... Principe. He assumed that the change of scale was the same as the one between the comparison plates taken in Oxford and the eclipse plates taken on Principe. He could then plug that number into his equations for those plates. Thus all of the measurement information he had available would be going to ...
What Is a Star
... of stars. A star's color depends on its temperature. Blue stars are the hottest ones. Some blue stars are thousands of times brighter than our sun. Other stars are thousands of times dimmer than our sun. They gleam with a dark red color. Our sun is a yellow star. It is in between the hottest and the ...
... of stars. A star's color depends on its temperature. Blue stars are the hottest ones. Some blue stars are thousands of times brighter than our sun. Other stars are thousands of times dimmer than our sun. They gleam with a dark red color. Our sun is a yellow star. It is in between the hottest and the ...
Convex and Concave Lenses
... Convex and Concave Lenses Convex Lenses and Virtual Images When an object is placed at the focal point of a convex lens, the refracted rays will emerge in a parallel beam and no image will be seen. When the object is brought closer to the lens, the rays will diverge on the opposite side of the lens, ...
... Convex and Concave Lenses Convex Lenses and Virtual Images When an object is placed at the focal point of a convex lens, the refracted rays will emerge in a parallel beam and no image will be seen. When the object is brought closer to the lens, the rays will diverge on the opposite side of the lens, ...
Review (PPT) - Uplift Summit Intl
... B. Larger stars ▪ For the star much bigger than the Sun when in the red giant phase, the core is so large that the resulting high temperature causes the fusion of nuclei to create elements heavier than carbon. ▪ The giant phase ends with the star having layers of elements with proton numbers that d ...
... B. Larger stars ▪ For the star much bigger than the Sun when in the red giant phase, the core is so large that the resulting high temperature causes the fusion of nuclei to create elements heavier than carbon. ▪ The giant phase ends with the star having layers of elements with proton numbers that d ...