d - Haus der Astronomie
... By averaging, we find the approximate distance to the Andromeda Galaxy: (2,52 ± 0,14) 10 lyly ...
... By averaging, we find the approximate distance to the Andromeda Galaxy: (2,52 ± 0,14) 10 lyly ...
Differential photometry of delta Scuti stars on Maidanak Observatory
... Abstract Several delta Scuti stars (V350 Peg, V2455 Cyg, V459 Cep) were observed on Maidanak observatory in Uzbekistan in frame of Russian-Uzbek scientific collaboration on asteroseismology. Differential photometry data were obtained on two 60 cm telescopes using CCD. These are pilot observation aimed ...
... Abstract Several delta Scuti stars (V350 Peg, V2455 Cyg, V459 Cep) were observed on Maidanak observatory in Uzbekistan in frame of Russian-Uzbek scientific collaboration on asteroseismology. Differential photometry data were obtained on two 60 cm telescopes using CCD. These are pilot observation aimed ...
AST101 Lecture 16 Extra Solar Planets
... 3 planets, including the least massive known (0.75 M⊕) ...
... 3 planets, including the least massive known (0.75 M⊕) ...
A Unique Environmental Studies Program
... Another star in the same constellation, Proxima Centauri, is actually our closest star, at 4.2 light years from earth, but it is only visible through a telescope. The Coal Sack. Close to the Southern Cross you may see a very dark patch called the "Coal Sack". This is a cloud of very dark dust or gas ...
... Another star in the same constellation, Proxima Centauri, is actually our closest star, at 4.2 light years from earth, but it is only visible through a telescope. The Coal Sack. Close to the Southern Cross you may see a very dark patch called the "Coal Sack". This is a cloud of very dark dust or gas ...
The Night Sky September 2016 - Bridgend Astronomical Society
... fuel at a greater rate than the Sun and so will shine for a correspondingly shorter time. Vega is much younger than the Sun, perhaps only a few hundred million years old, and is surrounded by a cold, dark disc of dust in which an embryonic solar system is being formed! There is a lovely double star ...
... fuel at a greater rate than the Sun and so will shine for a correspondingly shorter time. Vega is much younger than the Sun, perhaps only a few hundred million years old, and is surrounded by a cold, dark disc of dust in which an embryonic solar system is being formed! There is a lovely double star ...
Discovery of the Kuiper Belt
... inverse 4th power of the distance. A given body at 10 AU (an AU is the distance between the Earth and the Sun) will appear 10,000 times fainter than it would at 1 AU. Objects could exist out there, but be so faint as to have escaped detection. Eventually, I also realized that I could test these two ...
... inverse 4th power of the distance. A given body at 10 AU (an AU is the distance between the Earth and the Sun) will appear 10,000 times fainter than it would at 1 AU. Objects could exist out there, but be so faint as to have escaped detection. Eventually, I also realized that I could test these two ...
Bez tytułu slajdu
... Evolution of stars depend on their mass. Those above 8 Solar masses, at the end of the life, were all the termonuclear fuel is burn into iron, first collapse, and then explode into supernova. A part of the mass is expelled and the remnants form a core of about 20 km diameter made of neutrons. The ex ...
... Evolution of stars depend on their mass. Those above 8 Solar masses, at the end of the life, were all the termonuclear fuel is burn into iron, first collapse, and then explode into supernova. A part of the mass is expelled and the remnants form a core of about 20 km diameter made of neutrons. The ex ...
Document
... •10kpc diameter and 2kpc thick with the Sun less than a kpc from the center (rather heliocentric) •Tried to estimate Rayleigh scattering due to ISM gas but determined it to be insignificant (because most obscuration is due to ISM dust absorption which has a smaller dependence) ...
... •10kpc diameter and 2kpc thick with the Sun less than a kpc from the center (rather heliocentric) •Tried to estimate Rayleigh scattering due to ISM gas but determined it to be insignificant (because most obscuration is due to ISM dust absorption which has a smaller dependence) ...
Spectral_Analysis
... indicators of chemical composition, they set about identifying the observed lines in the solar spectrum (The spectrum given out by the sun). Almost all the lines in light from extraterrestrial sources were attributed to known elements, however, some new lines also appeared in the solar spectrum. In ...
... indicators of chemical composition, they set about identifying the observed lines in the solar spectrum (The spectrum given out by the sun). Almost all the lines in light from extraterrestrial sources were attributed to known elements, however, some new lines also appeared in the solar spectrum. In ...
Lab 2
... General Considerations about the Experimental Method: Since the index of refraction of glass only varies slightly with wavelength over the visible spectrum: 1. A precision spectrometer is used with which angles can be measured to the nearest minute. Since 1 degree = 60 minutes, an angle of 50 degree ...
... General Considerations about the Experimental Method: Since the index of refraction of glass only varies slightly with wavelength over the visible spectrum: 1. A precision spectrometer is used with which angles can be measured to the nearest minute. Since 1 degree = 60 minutes, an angle of 50 degree ...
PSC101-lecture12
... nuclear fusion in its core. • It is by far the largest object in the Solar System. 700 times more massive than all of the other objects in the Solar ...
... nuclear fusion in its core. • It is by far the largest object in the Solar System. 700 times more massive than all of the other objects in the Solar ...
Detection and spectroscopy of exo-planets like Earth J.R.P. Angel
... presence ofa relatively bright cloud ofdiffiise thermal emission about the star, like the sun's zodiacal cloud. Jupiter, Venus and Mars have thermal emission comparable to the Earth's, and the zodiacal cloud is several hundred times brighter. Can an interferometer configured for destructive interfer ...
... presence ofa relatively bright cloud ofdiffiise thermal emission about the star, like the sun's zodiacal cloud. Jupiter, Venus and Mars have thermal emission comparable to the Earth's, and the zodiacal cloud is several hundred times brighter. Can an interferometer configured for destructive interfer ...
PH507lecnote07_mcp2
... quartz substrate. The SIS junctions manufactured at the University of Kent are made by the so-called, 'Dolan bridge' method. A Dolan Bridge is a suspended 3D bridge made of photoresist. A scanning electron micrograph of such a structure is shown below. The metals are thermally evaporated within a va ...
... quartz substrate. The SIS junctions manufactured at the University of Kent are made by the so-called, 'Dolan bridge' method. A Dolan Bridge is a suspended 3D bridge made of photoresist. A scanning electron micrograph of such a structure is shown below. The metals are thermally evaporated within a va ...
Slides - Caltech Optical Observatories
... A spatial frequency also has phase: its peaks and valleys have some kind of reference to a known point in the image ...
... A spatial frequency also has phase: its peaks and valleys have some kind of reference to a known point in the image ...
Life of stars, formation of elements
... • Only a few of its stars close to the near edge can be seen in visible light. • Infrared light penetrates dust & shows many more stars. ...
... • Only a few of its stars close to the near edge can be seen in visible light. • Infrared light penetrates dust & shows many more stars. ...
WFIRST-2.4: What Every Astronomer Should Know
... discovery. These would be supported by a Guest Investigator program, analogous to archival programs on HST and the other Great Observatories. Investigations requiring new observations would come under the Guest Observer program. The anticipated schedule and cost of WFIRST-2.4 are discussed in detail ...
... discovery. These would be supported by a Guest Investigator program, analogous to archival programs on HST and the other Great Observatories. Investigations requiring new observations would come under the Guest Observer program. The anticipated schedule and cost of WFIRST-2.4 are discussed in detail ...
AST101 Lecture 16 Extra Solar Planets
... 3 planets, including the least massive known (0.75 ME) ...
... 3 planets, including the least massive known (0.75 ME) ...
REFLECTING VS. REFRACTING STARGAZING TELESCOPES
... do. In fact, you can think of a refracting telescope as one half of a giant pair of binoculars. The light enters a refracting telescope through the front lens, called the objective lens. It then travels down the length of the telescope to the eyepiece lenses, which is where the magnifying happens. ...
... do. In fact, you can think of a refracting telescope as one half of a giant pair of binoculars. The light enters a refracting telescope through the front lens, called the objective lens. It then travels down the length of the telescope to the eyepiece lenses, which is where the magnifying happens. ...
Galactic astronomy - Sierra College Astronomy Home Page
... Pure H & He stars, the first stars born after the Big Bang when very little metals existed. Stellar models tell us that Pop III stars would have been massive, shortlived, and none would have survived to current times. ...
... Pure H & He stars, the first stars born after the Big Bang when very little metals existed. Stellar models tell us that Pop III stars would have been massive, shortlived, and none would have survived to current times. ...
ED80 Refractor - Camden Library Service
... Venus, Mars, Jupiter and Saturn are the brightest objects in the sky after the Sun and the Moon. The telescope is capable of showing you these planets in some detail. Other planets may be visible but will appear star-like. Because planets are quite small in apparent size, optional higher power eyepi ...
... Venus, Mars, Jupiter and Saturn are the brightest objects in the sky after the Sun and the Moon. The telescope is capable of showing you these planets in some detail. Other planets may be visible but will appear star-like. Because planets are quite small in apparent size, optional higher power eyepi ...
Space - Logan Petlak
... • b. Observe and identify movement patterns of the major visible bodies in the night sky. • c. Compare historical and modern explanations for the real and apparent motion, including real and apparent retrograde motion, of celestial bodies (e.g., sun, moon, planets, comets, and asteroids) and artific ...
... • b. Observe and identify movement patterns of the major visible bodies in the night sky. • c. Compare historical and modern explanations for the real and apparent motion, including real and apparent retrograde motion, of celestial bodies (e.g., sun, moon, planets, comets, and asteroids) and artific ...
Achievements and Challenges for Australian Science
... Palomar 200" telescope and he was astonished to discover that the light had been red-shifted by an amount corresponding to a sixth of the velocity of light! The most likely interpretation was that this "star" was at great distance and red-shifted by the general expansion of the universe. This new cl ...
... Palomar 200" telescope and he was astonished to discover that the light had been red-shifted by an amount corresponding to a sixth of the velocity of light! The most likely interpretation was that this "star" was at great distance and red-shifted by the general expansion of the universe. This new cl ...
Spitzer Space Telescope
The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space observatory launched in 2003. It is the fourth and final of the NASA Great Observatories program.The planned mission period was to be 2.5 years with a pre-launch expectation that the mission could extend to five or slightly more years until the onboard liquid helium supply was exhausted. This occurred on 15 May 2009. Without liquid helium to cool the telescope to the very low temperatures needed to operate, most of the instruments are no longer usable. However, the two shortest-wavelength modules of the IRAC camera are still operable with the same sensitivity as before the cryogen was exhausted, and will continue to be used in the Spitzer Warm Mission. All Spitzer data, from both the primary and warm phases, are archived at the Infrared Science Archive (IRSA).In keeping with NASA tradition, the telescope was renamed after its successful demonstration of operation, on 18 December 2003. Unlike most telescopes that are named after famous deceased astronomers by a board of scientists, the new name for SIRTF was obtained from a contest open to the general public.The contest led to the telescope being named in honor of astronomer Lyman Spitzer, who had promoted the concept of space telescopes in the 1940s. Spitzer wrote a 1946 report for RAND Corporation describing the advantages of an extraterrestrial observatory and how it could be realized with available or upcoming technology. He has been cited for his pioneering contributions to rocketry and astronomy, as well as ""his vision and leadership in articulating the advantages and benefits to be realized from the Space Telescope Program.""The US$800 million Spitzer was launched from Cape Canaveral Air Force Station, on a Delta II 7920H ELV rocket, Monday, 25 August 2003 at 13:35:39 UTC-5 (EDT).It follows a heliocentric instead of geocentric orbit, trailing and drifting away from Earth's orbit at approximately 0.1 astronomical unit per year (a so-called ""earth-trailing"" orbit). The primary mirror is 85 centimeters (33 in) in diameter, f/12, made of beryllium and is cooled to 5.5 K (−449.77 °F). The satellite contains three instruments that allow it to perform astronomical imaging and photometry from 3 to 180 micrometers, spectroscopy from 5 to 40 micrometers, and spectrophotometry from 5 to 100 micrometers.