• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
11 Celestial Objects and Events Every Stargazer Should See
11 Celestial Objects and Events Every Stargazer Should See

... hiding the light of the dazzling Sun; and sore fear came upon men.” And Mark Twainʼs fictional Connecticut Yankee leveraged a solar eclipse to escape a tight spot in King Arthurʼs court: “It got to be pitch dark, at last, and the multitude groaned with horror to feel the cold uncanny night breezes f ...
File - North Bay Astronomy Club
File - North Bay Astronomy Club

... Mars early evening until dawn, reaches opposition this month Mars is not as bright as Jupiter when the month begins, but this is Mars’ month, the best month in two years to watch the red planet! Mars will brighten throughout May until its opposition on May 22. Saturn early evening until dawn, shines ...
SHOOTINGSTAR SENSING SATELLITE
SHOOTINGSTAR SENSING SATELLITE

... on payload. We propose in this work to use a CubeSat for the first time in planetary sciences, specifically to observe meteoritic entry into Earth’s atmosphere. A development of new CubeSat brings about many difficulties, but our challenge can possibly open a new field of observational research in a ...
Light: The Cosmic Messenger
Light: The Cosmic Messenger

... Why do we put telescopes into space? It is NOT because they are closer to the stars! Recall our 1-to-10 billion scale: • Sun size of grapefruit • Earth size of a tip of a ball point pen,15 m from Sun • Nearest stars 4,000 km away • Hubble orbit microscopically above tip of a ball-point-pen-size Ear ...
ESO`s VLT Takes First Detailed Image of Disc around
ESO`s VLT Takes First Detailed Image of Disc around

... objects. The size of the region of the disc observed corresponds to 150 million kilometres — about the distance between the Earth and the Sun, but located at 360 light-years from Earth. These very tiny details have an angular size of around 10 milliarcseconds — equivalent to trying to pick out small ...
May 2015 – SAAO press releases
May 2015 – SAAO press releases

... kilometres wide respectively and separated by a distance of around 7.5 kilometres. Astronomers are, however, uncertain as to exactly what form this obscuring material actually takes: it could be rings, a shell of gas and dust, or symmetrical jets of gas and dust shooting out from the centaur’s surfa ...
This lecture covers the origins of the Universe, Sun and our planet
This lecture covers the origins of the Universe, Sun and our planet

... We tend to live in urban environments with lots of light pollution and have lost an  appreciation for stars in the night sky.  Growing up in the country I took it for granted  until I brought a bunch of friends down from UC Davis for the weekend and they  remarked ‘look at all the stars’. More rece ...
life
life

... •Millenia to nearest star •Nuclear rockets, solar sails, ion engines •10-2c – 10-1c •Decades – centuries to nearest star •Solutions: •Unmanned missions •Generation ships – parents have children •Long life span/hibernation ...
Study Guide for Stars and Galaxies Quiz ANSWER KEY
Study Guide for Stars and Galaxies Quiz ANSWER KEY

... 1. Identify the 5 characteristics used to classify stars:  a. color  b. temperature  c. chemical composition  d. size  e. brightness  2. Which 2 things does the brightness of a star depend on?  a. size  b. temperature  3. What is a light­year?   The distance that light travels in one year, about 9.5 ...
AST 1002 Fall 2014 Midterm Exam Version 1
AST 1002 Fall 2014 Midterm Exam Version 1

Death of Low Mass Stars 8 Solar Masses or less
Death of Low Mass Stars 8 Solar Masses or less

... it further. Called Electron Degeneracy • The black dwarf will continue to exist at temps close to absolute zero forever…. ...
Lecture 1
Lecture 1

... How big is our Milky Way? How does it compare to other galaxies? How far away are galaxies? Time scale: How much time do we live? how much time do stars live? how old is the universe? ...
Stellar Magnitude, Distance, and Motion
Stellar Magnitude, Distance, and Motion

... Apparent Visual Magnitudes Object Sirius (brightest star) Venus (at brightest) Full Moon The Sun Faintest naked eye stars Faintest star visible from Earth telescopes Faintest star visible from Hubble Space Telescope ...
The Hertzsprung-Russell Diagram
The Hertzsprung-Russell Diagram

... sequence star. Hint: plot both stars on an HR diagram and note how their temperatures and luminosities compare. ...
The Case against Copernicus
The Case against Copernicus

... Brahe, who in 1588 proposed a different kind of geocentric system [see box at right]. This new “geoheliocentric” cosmology had two major advantages going for it: it squared with deep intuitions about how the world appeared to behave, and it fit the available data better than Copernicus’s system did. ...
BU Astronomy Department – AS 10X courses
BU Astronomy Department – AS 10X courses

... b. If you attended Night Lab 1, comment on objects you saw during Night Lab 1. Are they in the same part of the sky? Are they visible? If not, why not? If you did not attend Night Lab 1, leave this blank. ...
Jun - Wadhurst Astronomical Society
Jun - Wadhurst Astronomical Society

... This follows on from Brian’s informative talks for beginners introducing the planets in the Solar System, but having described all the planets, the asteroid belt and Dwarf Planets he now looks at theoretical ‘planets’ that probably never existed. As early as 1843, Urbain Le Verrier studied Mercury b ...
A spectroscopic sample of 3CR radio galaxies
A spectroscopic sample of 3CR radio galaxies

Meade ETX-90 Student Guide
Meade ETX-90 Student Guide

... o Re-tighten the horizontal lock. Do not over tighten the locks! Tighten them to firm grip only, so that the telescope does not move freely. o Press ENTER. WARNING: After this point, do not loosen the horizontal locks or move the telescope by any means other than the Autostar controller! Doing so wi ...
One way to measure distance
One way to measure distance

... One way to measure distance Stellar Parallax: The apparent shift in position of a nearby star relative to distant background objects due to Earth’s rotation ...
General Astronomy - Stockton University
General Astronomy - Stockton University

... Although astronomy has been practiced for thousands of years, it consisted mostly of observing and cataloguing the motions of stars. The use of spectroscopy to determine the properties of stars (c.a. 1814) allowed astronomers to investigate the the stars scientifically. ...
Learning Objectives Weeks 9-11 . 1. Know that star birth can begin
Learning Objectives Weeks 9-11 . 1. Know that star birth can begin

... Novae and thermonuclear supernovae both occur in close binary systems with a white dwarf, but a while a nova can recur a supernova is a one-shot event. 17. Like a white dwarf, a neutron star has an upper limit on its mass. For a neutron star to collapse, gravity must overwhelm both degeneracy pressu ...
E0900349-v12_ETM-Tel-Secondary_Parabolic Specification
E0900349-v12_ETM-Tel-Secondary_Parabolic Specification

... The cleaned optical components shall be protected with lint-free lens tissue. In addition, all components shall be placed in individual, sealed, clean polyethylene bags before shipping. The shipping containers must ensure that the bag does not become punctured and that the parts are properly protect ...
MULTIPLE CHOICE. Choose the one alternative that best
MULTIPLE CHOICE. Choose the one alternative that best

... 4) Which of the following statements about the sunspot cycle is not true? A) The number of solar flares peaks about every 11 years. B) The rate of nuclear fusion in the Sun peaks about every 11 years. C) With each subsequent peak in the number of sunspots, the magnetic polarity of the Sun is the rev ...
File
File

... From here on earth it is difficult to fathom the huge distances that exist between the stars and planets. The circumference of the earth (38,500 km) may seem like a long way to us but is an insignificant distance in space. The nearest celestial object to earth, the moon, is approximately 400, 000 km ...
< 1 ... 290 291 292 293 294 295 296 297 298 ... 456 >

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.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report