Stars - Madison County Schools
... Life span of a star depends on its size. – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
... Life span of a star depends on its size. – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
Space Explorations - Holy Cross Collegiate
... super-energetic jets of material to extremely high levels. You can watch a video fly-through of the two new black hole discoveries provided by ESO. ...
... super-energetic jets of material to extremely high levels. You can watch a video fly-through of the two new black hole discoveries provided by ESO. ...
Lect07-2-4-09
... orbit about the object whose mass we wish to know. 2. We estimate, one way or another, the distance to the object. 3. Kepler’s third law of planetary motion (which falls into this category) states that the square of the period, measured in years, equals the cube of the average distance, measured in ...
... orbit about the object whose mass we wish to know. 2. We estimate, one way or another, the distance to the object. 3. Kepler’s third law of planetary motion (which falls into this category) states that the square of the period, measured in years, equals the cube of the average distance, measured in ...
a to z of astronomy
... DARK CLOUD A relatively dense cloud of interstellar material containing dust particles. The dust particles absorb light from the more distant stars etc, so that the region appears dark compared with its surroundings. The clouds are often of low temperature and contain many molecules. DARK MATTER Mat ...
... DARK CLOUD A relatively dense cloud of interstellar material containing dust particles. The dust particles absorb light from the more distant stars etc, so that the region appears dark compared with its surroundings. The clouds are often of low temperature and contain many molecules. DARK MATTER Mat ...
STARS AND CONSTELLATIONS
... B. Been seen regularly since 1969, best seen after midnight and averages between 10 to 21 per hour. C. Seen in the area of the lyre below Vega. PLANETS: ...
... B. Been seen regularly since 1969, best seen after midnight and averages between 10 to 21 per hour. C. Seen in the area of the lyre below Vega. PLANETS: ...
PDF version (two pages, including the full text)
... At about 40 times the diameter of the sun and 400 times as bright, Alphard is one of the ‘bright giants’ in our neighborhood. But our ‘neighborhood’ is rather large. Alphard is 11 million times as far away from us as our own sun – so it looks a lot dimmer to us! To the south of Sirius, and nearly ov ...
... At about 40 times the diameter of the sun and 400 times as bright, Alphard is one of the ‘bright giants’ in our neighborhood. But our ‘neighborhood’ is rather large. Alphard is 11 million times as far away from us as our own sun – so it looks a lot dimmer to us! To the south of Sirius, and nearly ov ...
SHELL H II REGIONS IN NGC 6334
... What do we know about protoplanetary disks? • Radii of 100s of AU in T Tauri stars. • They last between 2 and 10 million years. • But little is known about their formation, about their earliest stages. • It can be argued theoretically that the disks should start small and grow with time… ...
... What do we know about protoplanetary disks? • Radii of 100s of AU in T Tauri stars. • They last between 2 and 10 million years. • But little is known about their formation, about their earliest stages. • It can be argued theoretically that the disks should start small and grow with time… ...
Centimeter and Millimeter Observations of Very Young Binary Systems
... What do we know about protoplanetary disks? • Radii of 100s of AU in T Tauri stars. • They last between 2 and 10 million years. • But little is known about their formation, about their earliest stages. • It can be argued theoretically that the disks should start small and grow with time… ...
... What do we know about protoplanetary disks? • Radii of 100s of AU in T Tauri stars. • They last between 2 and 10 million years. • But little is known about their formation, about their earliest stages. • It can be argued theoretically that the disks should start small and grow with time… ...
1 au d p = 1 au d
... Starting from the observed luminosity function, possible to derive an estimate for the Initial Mass Function (IMF). To define the IMF, imagine that we form a large number of stars. Then: the number of stars that have been x (M)DM = born with initial masses between M and M+DM (careful not to confuse ...
... Starting from the observed luminosity function, possible to derive an estimate for the Initial Mass Function (IMF). To define the IMF, imagine that we form a large number of stars. Then: the number of stars that have been x (M)DM = born with initial masses between M and M+DM (careful not to confuse ...
Stellar Evolution
... need to consider two more areas before we begin to put this all together and see if we can see some kind of “stellar life cycle” (also called stellar evolution). Those last two areas are interstellar material: atoms, dust, and nebula; and variable stars. ...
... need to consider two more areas before we begin to put this all together and see if we can see some kind of “stellar life cycle” (also called stellar evolution). Those last two areas are interstellar material: atoms, dust, and nebula; and variable stars. ...
Chapter 21
... contain the orbits of Mercury, Venus, Earth, Mars & Jupiter. It will probably explode as a supernova at some point within the next 100,000 years. Even at its relatively remote distance, it normally ranks as the tenth brightest star in the sky. ...
... contain the orbits of Mercury, Venus, Earth, Mars & Jupiter. It will probably explode as a supernova at some point within the next 100,000 years. Even at its relatively remote distance, it normally ranks as the tenth brightest star in the sky. ...
A WALK THROUGH THE SOLAR SYSTEM
... the stars, and they called these objects planets, meaning wanderers. They were named after Roman legends. Jupiter was the king of the gods, Mars the god of war, Mercury was messenger of the gods, Venus was the god of beauty, and Saturn (father of Jupiter), was the god of agriculture. They also obser ...
... the stars, and they called these objects planets, meaning wanderers. They were named after Roman legends. Jupiter was the king of the gods, Mars the god of war, Mercury was messenger of the gods, Venus was the god of beauty, and Saturn (father of Jupiter), was the god of agriculture. They also obser ...
VNOS/VOSI-ASTR
... about how they go about their work. A: Observation of cosmos. Measuring of star movement. Taking pictures. Using instruments to receive electromagnet radiation from space. Discussion with other scientists. B: Astronomers use direct unaided observations, telescope aided observations, inferences and s ...
... about how they go about their work. A: Observation of cosmos. Measuring of star movement. Taking pictures. Using instruments to receive electromagnet radiation from space. Discussion with other scientists. B: Astronomers use direct unaided observations, telescope aided observations, inferences and s ...
Spectroscopy, the Doppler Shift and Masses of Binary Stars
... The stars on the left are separated by 2.3 about 140 AU; those on the right by 2.6 . The two pairs are separated by about 208 (13,000 AU separation, 0.16 ly between the two pairs, all about 162 ly distant). Each pair would be about as bright as the quarter moon viewed from the other. ...
... The stars on the left are separated by 2.3 about 140 AU; those on the right by 2.6 . The two pairs are separated by about 208 (13,000 AU separation, 0.16 ly between the two pairs, all about 162 ly distant). Each pair would be about as bright as the quarter moon viewed from the other. ...
PDF of story and photos
... being born at the same time. The weight of these newborns ranges from a few pounds to a ton (2,000 pounds). Does this story seem possible? The story may not be possible for babies, but it is an ordinary event for stars. In fact, the Hubble Space Telescope is giving us the clearest view yet of a turb ...
... being born at the same time. The weight of these newborns ranges from a few pounds to a ton (2,000 pounds). Does this story seem possible? The story may not be possible for babies, but it is an ordinary event for stars. In fact, the Hubble Space Telescope is giving us the clearest view yet of a turb ...
Chapter 3
... – Used by doctors to scan bones and organs – Used by astronomers to detect black holes and tenuous gas in distant galaxies ...
... – Used by doctors to scan bones and organs – Used by astronomers to detect black holes and tenuous gas in distant galaxies ...
`A ship flying in space:` Earth seen through the eyes of an astronaut
... single event, but when you look at it and you repeat these events all over – a few miles across here, a few miles across there, a river here, a river there, a city here, a city there — and it’s clear we are a major force in shaping the crust of this planet and its clear we have the capability of imp ...
... single event, but when you look at it and you repeat these events all over – a few miles across here, a few miles across there, a river here, a river there, a city here, a city there — and it’s clear we are a major force in shaping the crust of this planet and its clear we have the capability of imp ...
Sample Midterm - IUPUI Physics
... A) In a few sentences explain what LBV and Wolf-Rayet stars are. One bonus point if you can name a specific star that is either a LBV or is a Wolf-Rayet star. B) If you wanted to discover a new LBV or Wolf-Rayet star where would you search and why? C) What determines the limit to the maximum brightn ...
... A) In a few sentences explain what LBV and Wolf-Rayet stars are. One bonus point if you can name a specific star that is either a LBV or is a Wolf-Rayet star. B) If you wanted to discover a new LBV or Wolf-Rayet star where would you search and why? C) What determines the limit to the maximum brightn ...
Stars
... also run out of hydrogen, and expand to the Red Giant stage. This is also about three times the size of the original star. Once the small/medium stars run out of gas, they will Nova and end up as White Dwarfs. In this stage, the stars slowly burn out. Mrs. Degl ...
... also run out of hydrogen, and expand to the Red Giant stage. This is also about three times the size of the original star. Once the small/medium stars run out of gas, they will Nova and end up as White Dwarfs. In this stage, the stars slowly burn out. Mrs. Degl ...
PDF - BYU Studies
... who investigated quantitatively the energy stores of the sun for the first time; (3) the discovery of radioactivity in the late 1890s, which presented a possible new (nuclear) energy source—this stage reached its culmination with the discovery by Hans Bethe (1906–2005) in the 1930s of an actual nucl ...
... who investigated quantitatively the energy stores of the sun for the first time; (3) the discovery of radioactivity in the late 1890s, which presented a possible new (nuclear) energy source—this stage reached its culmination with the discovery by Hans Bethe (1906–2005) in the 1930s of an actual nucl ...
Day_27
... The interstellar material that becomes stars and planets must have the key elements for life if those planets are going to have it. Water and oxygen have been detected in some star-forming regions. ...
... The interstellar material that becomes stars and planets must have the key elements for life if those planets are going to have it. Water and oxygen have been detected in some star-forming regions. ...
The student will understand the hierarchical relationships of objects
... Identify the relationship between a planet’s distance from the sun and the length of its year. Identify the relationship between a planet’s distance from the sun and its average surface temperature. Identify the different orbit shapes of astronomical bodies. ...
... Identify the relationship between a planet’s distance from the sun and the length of its year. Identify the relationship between a planet’s distance from the sun and its average surface temperature. Identify the different orbit shapes of astronomical bodies. ...
LESSON 4, STARS
... red giant, and finally, a white dwarf. A more-massive star: begins as a nebula, becomes a protostar, a main-sequence star, a very massive star, a supergiant, a supernova, and finally, either a neutron star (pulsar) or a black hole. ...
... red giant, and finally, a white dwarf. A more-massive star: begins as a nebula, becomes a protostar, a main-sequence star, a very massive star, a supergiant, a supernova, and finally, either a neutron star (pulsar) or a black hole. ...
Stars Chapter 21
... • Light Year- Astronomers use light years to measure the distances between stars –A light year is the distance that light travels in one year • 9,460,730,472,580.8 km • 5,878,630,000,000 miles ...
... • Light Year- Astronomers use light years to measure the distances between stars –A light year is the distance that light travels in one year • 9,460,730,472,580.8 km • 5,878,630,000,000 miles ...
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.