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Procedure
Procedure

... Normalize the Flat field image by dividing by the mean pixel value Flat-field all object images by dividing each by the normalized Flat field image This procedure counters the variation that occurs over the surface of the CCD ...
Unit 6: Space
Unit 6: Space

... SC.8.E.5.In.9: Recognize that the four seasons are related to Earth’s position as it travels (revolves) around the Sun. SC.8.E.5.Su.7: Recognize that Earth revolves around the Sun creating the four seasons. SC.8.E.5.Pa.3: Recognize the four seasons. SC.8.E.5.In.11: Identify technology used by scient ...
1. Introduction
1. Introduction

(AU): Average distance from Earth to Sun
(AU): Average distance from Earth to Sun

Explaining Apparent Retrograde Motion
Explaining Apparent Retrograde Motion

... • Al-Mamun’s House of Wisdom in Baghdad was a great center of learning around A.D. 800. • With the fall of Constantinople (Istanbul) in 1453, Eastern scholars headed west to Europe, carrying knowledge that helped ignite the European ...
October 2006 - Skyscrapers, Inc.
October 2006 - Skyscrapers, Inc.

... note the position of both the Moon and the cluster a day before and a day after the event. Fortunately our major meteor shower during mid-month will occur at New Moon. The Orionids are at their best on the night of October 20-21 with about 15-20 yellow and green meteors per hour during peak. These r ...
mass of star
mass of star

... Such short-lived stars spend all their lives in the stellar nursery of their birth, so emission nebulae mark sites of ongoing star formation. Many stars of lower mass are forming too, but make few UV photons. Why "H II Region? H I: Hydrogen atom H II: Ionized Hydrogen ...
emily lakdawalla Planetary Close-ups
emily lakdawalla Planetary Close-ups

... sees official public release. For example, only a few hundred Voyager images have ever been prepared for publication, yet the two spacecraft returned more than 80,000 separate image products to Earth. What happened to the rest of the data? It’s always been available, just inconvenient for the general ...
Nebulae
Nebulae

... loosely applied to anything that looks fuzzy or extended in a telescope. ...
Stars Student Page Purpose To investigate stellar classification by
Stars Student Page Purpose To investigate stellar classification by

... in this portion of the graph are now as supergiants. 4. Stars in the lower right portion of the graph will remain on the Main Sequence the longest. This is because they will burn their fuel very slowly compared with larger stars on other parts of the Main Sequence. 5. The Sun radiates at a peak wave ...
How do atoms interact with light?
How do atoms interact with light?

... • An electron can be kicked into a higher orbit when it absorbs a photon with exactly the right energy. ...
Charcteristic of Stars Powerpoint C
Charcteristic of Stars Powerpoint C

... approximately 695,000 km, or about 109 times the radius of Earth. So the sun would equal 1 solar radius. • In comparison white dwarfs are about the same size as Earth and would equal 0.01 solar radius. Supergiants can have sizes up to 1,000 solar radii. ...
Earth Science 25.2A : Stellar Evolution
Earth Science 25.2A : Stellar Evolution

...  Eventually, all the usable nuclear fuel in these giants will be consumed.  The sun, for example, will spend less than a billion years as a giant. ...
Pulsars: Astronomical Clocks In The Sky
Pulsars: Astronomical Clocks In The Sky

... Pulsars are rapidly rotating neutron stars ...
level 1
level 1

... 2. Research the definitions of one parsec and one astronomical unit, which are more commonly used in astronomy. Create an infographic for museum visitors that shows these distances in terms that make sense to them. Design an Excel spreadsheet to prepare the data, using the distances provided in Stel ...
Glossary - Sky Science
Glossary - Sky Science

... a huge ball of gas that emits radiation and light (or once did) because of nuclear reactions in its core. Sunspot: a dark, irregular patch on the sun's surface. Sunspots appear dark because they are about 2,000 degrees Celsius cooler than surrounding gases. Sunspots are areas with intense magnetic s ...
a star is born reading
a star is born reading

... burn fuel very quickly. It runs out in ten thousand to 100 thousand years. Even though they are very rare, many of the stars we see at night are blue giants. They burn brightly, and their light shines a very long distance. Blue giant stars die as a supernova. This is a spectacular explosion in space ...
The Cook Memorial Library
The Cook Memorial Library

... sky after the Sun and the Moon. Stars: Even powerful telescopes cannot magnify a star to appear as more than a point of light. You can, however, enjoy the different colors of the stars and locate many pretty double and multiple stars. (Look at the middle star in the handle of the Big Dipper, Mizar. ...
Evolution Cycle of Stars
Evolution Cycle of Stars

... Sun. • White dwarfs have a mass similar to that of the Sun, but only 1% of the Sun's diameter; approximately the diameter of the Earth. The surface temperature of a white dwarf is 8000C or more, but being smaller than the Sun their overall luminosity's are 1% of the Sun or less. • White dwarfs are t ...
Final Exam, Dec. 19, 2015 - Physics@Brock
Final Exam, Dec. 19, 2015 - Physics@Brock

... 10. The spectral class of a star provides information about its (a) distance. (b) luminosity. (c) temperature. (d) mass. 11. Two stars have equal surface temperatures but the radius of star A is three times larger than the radius of star B. The luminosity of star A is than the luminosity of star ...
Masers and high mass star formation Claire Chandler
Masers and high mass star formation Claire Chandler

... • Form massive stars through collisions of intermediate-mass stars in clusters – May be explained by observed cluster dynamics – Possible problem with cross section for coalescence – Observational consequences of such collisions? ...
Light and the Electromagnetic Spectrum
Light and the Electromagnetic Spectrum

... • By looking at objects at different wavelengths, we get a different view and lots more information • Some objects are only visible at certain wavelengths ...
Light and the Electromagnetic Spectrum
Light and the Electromagnetic Spectrum

... • By looking at objects at different wavelengths, we get a different view and lots more information • Some objects are only visible at certain wavelengths ...
Answers for the HST Scavenger Hunt
Answers for the HST Scavenger Hunt

... When scientists used the HST to study Cygnus X-1, they were able to observe two of these events, which defines the tern defined above. Infall events or dying pulse train," the rapidly decaying, precisely sequential flashes of light from a hot blob of gas spiraling into the black hole. ...
ticket on Proxima Centauri Airlines
ticket on Proxima Centauri Airlines

...  PROXIMA CENTAURI AIRLINES  ...
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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.
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