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Student Manual - Gettysburg College
Student Manual - Gettysburg College

... The XMM-Newton Observatory XMM-Newton is an X-ray satellite launched into Earth’s orbit on December 10, 1999 by the European Space Agency (ESA). XMM-Newton is actually a fully-functioning observatory, carrying three very advanced X-ray telescopes. They each contain 58 highprecision concentric mirror ...
ASTRO-114--Lecture 38-
ASTRO-114--Lecture 38-

A Star - Cloudy Nights
A Star - Cloudy Nights

... Two thirds of all stars in the sky have a companion star. These double stars, or binary star systems have two stars that orbit around a common point. Some double stars orbit each other very quickly (once every few hours), while some orbit each other very slowly (once every few thousand years). Howev ...
Live from McDonald Observatory: Observing Venus: explore how it
Live from McDonald Observatory: Observing Venus: explore how it

... In  the  box,  students  should  draw  Venus  exactly  as  they  see  it  on  their  screen.    Depending  on  the  location  of  Venus  in   its  orbit  around  the  sun  on  the  day  of  your  videoconference,  students  might ...
new horizons pluto approach navigation
new horizons pluto approach navigation

... enabling the system mass to be determined within 1 percent. The maximum separation of Pluto and Charon on a star background provides a powerful observation of the total orbit size. The mass ratio or the allocation of mass between Pluto and Charon is more difficult to discern from Earth based observa ...
The universe of the coming ALMA revolution
The universe of the coming ALMA revolution

... Only now has technology caught up with the dream of opening up a rich new vein of the spectrum to high-resolution exploration. Millimeter-wavelength light is a “sweet spot” for tomorrow’s astronomy because… It’s what half the light is. In addition to the cosmic microwave background (a nearly uniform ...
The GMT-Consortium Large Earth Finder (G
The GMT-Consortium Large Earth Finder (G

... the most urgent astrophysical problems. The scope of the G-CLEF science portfolio has been reviewed in previous publications1,2, including near-field cosmology, high-Z cosmology and extragalactic astronomy. A particularly rapid shifting observational area is that of exoplanet science. To date, the ...
PPT Only - Harvard-Smithsonian Center for Astrophysics
PPT Only - Harvard-Smithsonian Center for Astrophysics

... outflows related? • How long do they last? • How many are there, really? ...
Slide 1
Slide 1

... • TYCHO WAS BOTH AN “EXPERIMENTALIST” AND A “THEORIST” • HE MUST HAVE BEEN A VERY GOOD MACHINIST – V.E. THOREN WRITES, “Because of the number and variety of instruments made and described by Tycho, previous commentators have assumed that he made instruments for the sheer sake of keeping his instrume ...
Star 1 A star is a massive, luminous ball of plasma held together by
Star 1 A star is a massive, luminous ball of plasma held together by

... history, including diameter, rotation, movement and temperature. A plot of the temperature of many stars against their luminosities, known as a Hertzsprung-Russell diagram (H–R diagram), allows the age and evolutionary state of a star to be determined. A star begins as a collapsing cloud of material ...
Chapter 10
Chapter 10

... 1. Describe the evolution of a main-sequence star into a red giant. 2. On the H-R diagram, trace the path of a typical star during its formation and its evolution into a red giant. How can star clusters help us check test this theory? 3. Describe the steps in the formation of a white dwarf star and ...
Magnitude-range brightness variations of overactive K giants
Magnitude-range brightness variations of overactive K giants

File - Mr. Catt`s Class
File - Mr. Catt`s Class

... 1. According to present theory, the tremendous energy that comes from an AGN is caused by an immense black hole at the nucleus of the galaxy. The black hole is surrounded by an accretion disk heated by infalling material. 2. The leading theory on the nature of AGNs holds that the different observed ...
GAIA A Stereoscopic Census of our Galaxy
GAIA A Stereoscopic Census of our Galaxy

... Regulated power bus: 28 V, with two Li-ion 14Ah batteries for eclipses during launch and transfer phases (no eclipses in operational orbit) OATo Seminars on formation and Evolution of the Galaxy ...
Exploring Solar Systems Across the Universe
Exploring Solar Systems Across the Universe

... Figure 2. A picture of the Orion nebula taken with the Hubble Space Telescope. Stars and planets are being formed inside giant interstellar clouds such as the Orion nebula. The Solar System was born in a similar environment about 4.6 billion years ago. (Picture credit: NASA/ ...
Success, Truth, and the Galilean Strategy
Success, Truth, and the Galilean Strategy

... and so on. We can use magnifying glasses and microscopes to clearly see things that we could otherwise see only with careful scrutiny, we can use them to see features which only our sharp-eyed friends can make out, and so on. The empiricist may resist these cases—distant things seen through the tele ...
Finding Dark Matter
Finding Dark Matter

... • One proposed candidate for the dark matter is in the form of “MAssive Compact Halo Objects” (MACHOs) – These can be detected through “gravitational microlensing” ...
Star Formation in the Galaxy, An Observational Overview
Star Formation in the Galaxy, An Observational Overview

... to as brown dwarfs.) Stars with larger masses are presumably too luminous to hold on to their outer atmospheres. Once a star exhausts its supply of hydrogen in its central core, nuclear reactions there plummet and the helium-rich core contracts unable to support itself against gravity. The contracti ...
Comets to Cosmology - Nrao - National Radio Astronomy Observatory
Comets to Cosmology - Nrao - National Radio Astronomy Observatory

... The GBT is a versatile facility that responds entirely to demand from the scientific community, and thus is used for research ranging from comets to cosmology. many programs fall into the primary science themes identified by the American science community through the two recent decadal survey report ...
The absence of CO from the dust peak around ϵ Eri
The absence of CO from the dust peak around ϵ Eri

... 2000) suggest the presence of a planet of mass 0.2 Jupiter masses at the same orbital distance as the ring. A second, more massive (∼1 M J ) planet may also be orbiting the star at ∼3 au (Hatzes et al. 2000). The established core accretion theory of planet formation (e.g. Boss 2000) generally allows ...
Common Envelope Evolution Leading to Supernovae with Dense
Common Envelope Evolution Leading to Supernovae with Dense

... related supernovae is speculative, but shows some promising points of comparison. The possibility that CE evolution leads to the matter has long been mentioned (Chugai & Danziger 1994). The hypothesis that the mass loss and supernova both result from CE evolution has been raised by Barkov & Komissar ...
EX PLANET E - Institute of Physics
EX PLANET E - Institute of Physics

... Exoplanets are too small and far away to see directly, even with the most powerful telescopes. So how can astronomers detect them? When an exoplanet passes in front of its star (an event known as a transit), it blocks some of the star’s light. For a short time, the star’s brightness decreases. So, i ...
lhaaso-km2a
lhaaso-km2a

NACO data reduction cookbook - European Southern Observatory
NACO data reduction cookbook - European Southern Observatory

6th Grade Science
6th Grade Science

... After a full Moon, the lit portion starts to wane, get smaller. The Moon will begin to look smaller as we see less and less of the lighted side. This will first show the waning gibbous phase followed by the last quarter Moon. As it continues to wane, we will see a waning crescent Moon for about six ...
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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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