Edwin Hubble
... Hubble’s Law Continued • In other words: – he showed that galaxies are moving away from us with a speed proportional to their distance – Aka: the Universe is expanding ...
... Hubble’s Law Continued • In other words: – he showed that galaxies are moving away from us with a speed proportional to their distance – Aka: the Universe is expanding ...
r 0 - Observatoire de Genève
... Why is adaptive optics needed? Turbulence in earth’s atmosphere makes stars twinkle More importantly, turbulence spreads out light; makes it a blob rather than a point. This blob is a lot larger than the Point Spread Function (PSF) that would be limited by the size of the telescope only Even the la ...
... Why is adaptive optics needed? Turbulence in earth’s atmosphere makes stars twinkle More importantly, turbulence spreads out light; makes it a blob rather than a point. This blob is a lot larger than the Point Spread Function (PSF) that would be limited by the size of the telescope only Even the la ...
... 2009 spending bill wending its way through Congress (see page 18) suggests that $20 million may be allocated to continue development of SIM Lite, a scaled-down version of the Space Interferometry Mission, which would look for Earth-like planets around nearer stars. More ambitious space-based mission ...
PPT 15MB - HubbleSOURCE
... The Paschen series of hydrogen spectral lines in the infrared is named after the German physicist Louis Paschen, who discovered them in 1908 (the alpha line, at 1.87 microns, is the strongest of the series). The Earth’s atmosphere absorbs this line from celestial sources, so we need a telescope in ...
... The Paschen series of hydrogen spectral lines in the infrared is named after the German physicist Louis Paschen, who discovered them in 1908 (the alpha line, at 1.87 microns, is the strongest of the series). The Earth’s atmosphere absorbs this line from celestial sources, so we need a telescope in ...
Chapter6-7
... passes through a cool, low-density gas, the result will be an absorption spectrum. Light excites electrons in atoms to higher energy states ...
... passes through a cool, low-density gas, the result will be an absorption spectrum. Light excites electrons in atoms to higher energy states ...
OLEARY_2004 - Armagh Observatory
... When comparing the sample curve with the curve I obtained, several problems are highlighted. First is that the curve is not flat during the eclipse. This can be explained by looking at the process of photometry. The star’s drop in magnitude was found by comparing NN Ser to other, constant stars in t ...
... When comparing the sample curve with the curve I obtained, several problems are highlighted. First is that the curve is not flat during the eclipse. This can be explained by looking at the process of photometry. The star’s drop in magnitude was found by comparing NN Ser to other, constant stars in t ...
OLEARY_2004_white
... This can be explained by looking at the process of photometry. The star’s drop in magnitude was found by comparing NN Ser to other, constant stars in the image. A drop in magnitude, or dimming is found when fewer photons are recorded per pixel. However, with fewer photons, a drop in accuracy occurs. ...
... This can be explained by looking at the process of photometry. The star’s drop in magnitude was found by comparing NN Ser to other, constant stars in the image. A drop in magnitude, or dimming is found when fewer photons are recorded per pixel. However, with fewer photons, a drop in accuracy occurs. ...
Quiz Lecture 6
... Often times, two or more radio telescopes are linked together electronically while studying the same object. This is primarily for the purpose of a. allowing astronomers from different countries to share in the excitement of new discoveries. b. increasing the focal length of the telescope, and there ...
... Often times, two or more radio telescopes are linked together electronically while studying the same object. This is primarily for the purpose of a. allowing astronomers from different countries to share in the excitement of new discoveries. b. increasing the focal length of the telescope, and there ...
CU_EOSS_class (PPTmin) - Colorado Space Grant Consortium
... powerful airship design for use by NORAD and Missile Defense Agency being developed by Lockheed-Martin. Military Reqs: 4000 lb payload & 10-15 kilowattts of payload power; to be located at mid-latitudes with flight durations of at least 6 months up to 5 yrs. ...
... powerful airship design for use by NORAD and Missile Defense Agency being developed by Lockheed-Martin. Military Reqs: 4000 lb payload & 10-15 kilowattts of payload power; to be located at mid-latitudes with flight durations of at least 6 months up to 5 yrs. ...
23-4 - Fremont Peak Observatory
... on the Pluto debate. My initial reaction was one of puzzlement, since Pluto has been a planet ever since I first picked up an astronomy book 52 years ago. However, as I found out about 15 years ago, Ceres was also designated as a planet for over 40 years before it was reclassified as an asteroid. Ba ...
... on the Pluto debate. My initial reaction was one of puzzlement, since Pluto has been a planet ever since I first picked up an astronomy book 52 years ago. However, as I found out about 15 years ago, Ceres was also designated as a planet for over 40 years before it was reclassified as an asteroid. Ba ...
Resolving power
... Theory of the experiment:Rayleigh’s criterion of resolution: According to Rayleigh’s criterion of resolution, two equally bright sources can be just resolved by any optical system when their distance apart is such that in the diffraction pattern, the maximum due to one falls on the minimum of the du ...
... Theory of the experiment:Rayleigh’s criterion of resolution: According to Rayleigh’s criterion of resolution, two equally bright sources can be just resolved by any optical system when their distance apart is such that in the diffraction pattern, the maximum due to one falls on the minimum of the du ...
Chapter 26
... The study of the universe is called astronomy. A collection of stars, gas, and dust bound together by gravity is called a galaxy. The galaxy we live in is called the Milky Way. The long distances in space are measured in units called light-years and AU’s. A light-year is the distance light travels i ...
... The study of the universe is called astronomy. A collection of stars, gas, and dust bound together by gravity is called a galaxy. The galaxy we live in is called the Milky Way. The long distances in space are measured in units called light-years and AU’s. A light-year is the distance light travels i ...
Chapter Six: Astronomical Tools
... 1) The visible part of the electromagnetic spectrum can be divided into seven color bands of Red, Orange, Yellow, Green, Blue, Indigo and Violet (from long to short wavelength). A single photon of which of these colors has the greatest amount of energy? a. red b. orange c. green d. blue e. violet 2) ...
... 1) The visible part of the electromagnetic spectrum can be divided into seven color bands of Red, Orange, Yellow, Green, Blue, Indigo and Violet (from long to short wavelength). A single photon of which of these colors has the greatest amount of energy? a. red b. orange c. green d. blue e. violet 2) ...
SALT/SAAO introduction
... Light collecting area of array: 77.6 sq. metres Wavelength coverage: 340 nm to 2500 nm (ultraviolet to near infrared). Telescope rotates in azimuth on 8 air bearings to acquire targets, with a precision of 3 microns. A tracker with 10 degrees of freedom then follows the target, as the Earth rotates, ...
... Light collecting area of array: 77.6 sq. metres Wavelength coverage: 340 nm to 2500 nm (ultraviolet to near infrared). Telescope rotates in azimuth on 8 air bearings to acquire targets, with a precision of 3 microns. A tracker with 10 degrees of freedom then follows the target, as the Earth rotates, ...
Slide 1 - project team
... Lotz will be in charge of the translation in Labview. • Include the telescope models and use PhoSim to built the look-up-table (temperature, elevation and azimuthal angle). • “closed-loop” done using Zemax simulations and bending modes of the mirrors • Need to close the loop using PhoSim ...
... Lotz will be in charge of the translation in Labview. • Include the telescope models and use PhoSim to built the look-up-table (temperature, elevation and azimuthal angle). • “closed-loop” done using Zemax simulations and bending modes of the mirrors • Need to close the loop using PhoSim ...
Navigating the Sky with My Telescope: Do the Planets Revolve
... The apparent diameter of Venus increased approximately three times in three months with decreasing percentage illumination. The apparent diameter of the Moon was almost constant over one cycle. Both the Moon and Venus go through a complete cycle of phases. The Magnification of my telescope is 38.5x. ...
... The apparent diameter of Venus increased approximately three times in three months with decreasing percentage illumination. The apparent diameter of the Moon was almost constant over one cycle. Both the Moon and Venus go through a complete cycle of phases. The Magnification of my telescope is 38.5x. ...
WOMEN OF ASTRONOMY
... • 1543 While on his deathbed, Copernicus publishes his theory that planets orbit around the sun. • 1609 Galileo discovers craters on Earth’s moon, the moons of Jupiter, the turning of the sun, and the presence of innumerable stars in the Milky Way with a telescope that he built. • 1666 Isaac Newt ...
... • 1543 While on his deathbed, Copernicus publishes his theory that planets orbit around the sun. • 1609 Galileo discovers craters on Earth’s moon, the moons of Jupiter, the turning of the sun, and the presence of innumerable stars in the Milky Way with a telescope that he built. • 1666 Isaac Newt ...
Solar System: ground-based
... thermal properties, mass, age – VLT, OWL => high-res spectra; complements JWST NIR, MIRI spectrophotometry and low-res spectra ...
... thermal properties, mass, age – VLT, OWL => high-res spectra; complements JWST NIR, MIRI spectrophotometry and low-res spectra ...
+ ultra ii
... SUMMARY PHYSICS GOALS AND PROSPECTS Study of the spectra of galactic point sources as well as extended galactic sources up to around 100 TeV• Details of spectral cut-off parameters of these sources ...
... SUMMARY PHYSICS GOALS AND PROSPECTS Study of the spectra of galactic point sources as well as extended galactic sources up to around 100 TeV• Details of spectral cut-off parameters of these sources ...
Cosmic Times 1955, 65 PPT
... instead of a lens to gather and focus the light to a flat secondary mirror that in turn reflects the image out of an opening at the side of the main tube. You look through an eyepiece on the side of the tube up near the top. ...
... instead of a lens to gather and focus the light to a flat secondary mirror that in turn reflects the image out of an opening at the side of the main tube. You look through an eyepiece on the side of the tube up near the top. ...
Astronomy Timeline This is a timeline of important events
... The Russian Venera 7 becomes first to land softly on the surface of Venus. ...
... The Russian Venera 7 becomes first to land softly on the surface of Venus. ...
Page #1 Exemplar Informational Texts – “Telescopes.” Ronan, Colin
... countless other wonders in our sky--you must use a telescope. A telescope is an instrument used to produce magnified (enlarged) images of distant objects. It does this by gathering and focusing the light or other forms of electromagnetic radiation emitted or reflected by those objects. The word “tel ...
... countless other wonders in our sky--you must use a telescope. A telescope is an instrument used to produce magnified (enlarged) images of distant objects. It does this by gathering and focusing the light or other forms of electromagnetic radiation emitted or reflected by those objects. The word “tel ...
Violent Adolescent Planet Caught Infrared Handed
... The presence of the SiO gas, which can be formed by vaporizing rocks, and silica-rich glass have led to the collision interpretation. Although collisions seem to explain the current data, the probability of observing a collision is low. Current models of terrestrial planet formation give an approxim ...
... The presence of the SiO gas, which can be formed by vaporizing rocks, and silica-rich glass have led to the collision interpretation. Although collisions seem to explain the current data, the probability of observing a collision is low. Current models of terrestrial planet formation give an approxim ...
Space News Update – August 2015 By Pat Williams
... to 300 kg of water vapour – roughly the equivalent of two bathtubs – every second. This is a thousand times more than was observed this time last year when Rosetta first approached the comet. Then, it recorded an outflow rate of just 300 g per second, equivalent to two small glasses of water. Along ...
... to 300 kg of water vapour – roughly the equivalent of two bathtubs – every second. This is a thousand times more than was observed this time last year when Rosetta first approached the comet. Then, it recorded an outflow rate of just 300 g per second, equivalent to two small glasses of water. Along ...
Unit 1 Test
... ____ 69. Frequency involves the number of pulses of energy past a certain point in a specific amount of time. ____ 70. A geocentric universe places the Earth at the center. ____ 71. The speed of light is also known as the cosmological constant. ____ 72. We can obviously see in the visible portion of ...
... ____ 69. Frequency involves the number of pulses of energy past a certain point in a specific amount of time. ____ 70. A geocentric universe places the Earth at the center. ____ 71. The speed of light is also known as the cosmological constant. ____ 72. We can obviously see in the visible portion of ...
James Webb Space Telescope
The James Webb Space Telescope (JWST), previously known as Next Generation Space Telescope (NGST), is a space observatory under construction and scheduled to launch in October 2018. The JWST will offer unprecedented resolution and sensitivity from long-wavelength visible to the mid-infrared, and is a successor instrument to the Hubble Space Telescope and the Spitzer Space Telescope. The telescope features a segmented 6.5-meter (21 ft) diameter primary mirror and will be located near the Earth–Sun L2 point. A large sunshield will keep its mirror and four science instruments below 50 K (−220 °C; −370 °F).JWST's capabilities will enable a broad range of investigations across the fields of astronomy and cosmology. One particular goal involves observing some of the most distant objects in the Universe, beyond the reach of current ground and space based instruments. This includes the very first stars, the epoch of reionization, and the formation of the first galaxies. Another goal is understanding the formation of stars and planets. This will include imaging molecular clouds and star-forming clusters, studying the debris disks around stars, direct imaging of planets, and spectroscopic examination of planetary transits.In gestation since 1996, the project represents an international collaboration of about 17 countries led by NASA, and with significant contributions from the European Space Agency and the Canadian Space Agency. It is named after James E. Webb, the second administrator of NASA, who played an integral role in the Apollo program.The JWST has a history of major cost overruns and delays. The first realistic budget estimates were that the observatory would cost $1.6 billion and launch in 2011. NASA has now scheduled the telescope for a 2018 launch. In 2011, the United States House of Representatives voted to terminate funding, after about $3 billion had been spent and 75 percent of its hardware was in production. Funding was restored in compromise legislation with the US Senate, and spending on the program was capped at $8 billion. As of December 2014, the telescope remained on schedule and within budget, but at risk of further delays.