Space Key Word Search
... of a super-massive star. CELESTIAL SPHERE - system of mapping the space around the Earth; an imaginary sphere surrounding Earth. CIRCUMPOLAR - circling the pole star (Polaris). COMET - chunk of dirty, dark ice mixed with dust, rocks, and gases which revolves around the Sun in an elliptical orbit; em ...
... of a super-massive star. CELESTIAL SPHERE - system of mapping the space around the Earth; an imaginary sphere surrounding Earth. CIRCUMPOLAR - circling the pole star (Polaris). COMET - chunk of dirty, dark ice mixed with dust, rocks, and gases which revolves around the Sun in an elliptical orbit; em ...
STARS Chapter 8 Section 1
... What are stars made of? • Stars are made of gas. Hydrogen(H) and helium(He) are the two main elements that make up a star. • What is an element? • Stars also contain small amounts of other elements, such as carbon, nitrogen, and oxygen. Each star is made up of a different mix. • To find out what a ...
... What are stars made of? • Stars are made of gas. Hydrogen(H) and helium(He) are the two main elements that make up a star. • What is an element? • Stars also contain small amounts of other elements, such as carbon, nitrogen, and oxygen. Each star is made up of a different mix. • To find out what a ...
13 Space Photos To Remind You The Universe Is
... In death, the star’s dusty outer layers are unraveling into space, glowing from the intense ultraviolet radiation being pumped out by the hot stellar core. Planetary nebulae (like the Helix Nebula above) are actually the remains of stars that once looked a lot like our sun. These stars spend most of ...
... In death, the star’s dusty outer layers are unraveling into space, glowing from the intense ultraviolet radiation being pumped out by the hot stellar core. Planetary nebulae (like the Helix Nebula above) are actually the remains of stars that once looked a lot like our sun. These stars spend most of ...
Astronomy Unit Period
... __________ 34. Which of the following statements is NOT true of supernovas? a. They are explosions in which a massive star collapses. b. They are explosions that occur at the beginning of a star’s life. c. They can be brighter than an entire galaxy for several days. d. They are explosions in which a ...
... __________ 34. Which of the following statements is NOT true of supernovas? a. They are explosions in which a massive star collapses. b. They are explosions that occur at the beginning of a star’s life. c. They can be brighter than an entire galaxy for several days. d. They are explosions in which a ...
UNIT 3 INPUT 2: Notes on Black Holes (BH): Process of Formation
... x-rays = dust particles pulled into black holes seed up and heat up and emit x-rays Rotating stars= Stars rotate around black holes when they are at a certain distance from the event horizon Gravity lenses: When a big object passes between a star and the Earth, the object acts like a lens and causes ...
... x-rays = dust particles pulled into black holes seed up and heat up and emit x-rays Rotating stars= Stars rotate around black holes when they are at a certain distance from the event horizon Gravity lenses: When a big object passes between a star and the Earth, the object acts like a lens and causes ...
The star and the trees prostrate
... electromagnetic radiation, including photons, the particles of light. This radiation exerts an outward pressure that exactly balances the inward pull of gravity caused by the star's mass. As the nuclear fuel is exhausted, the outward forces of radiation diminish, allowing the gravitation to compress ...
... electromagnetic radiation, including photons, the particles of light. This radiation exerts an outward pressure that exactly balances the inward pull of gravity caused by the star's mass. As the nuclear fuel is exhausted, the outward forces of radiation diminish, allowing the gravitation to compress ...
Stars: Part 2
... • First to half its size and then a quarter. • Then even smaller. Imagine that the entire mass of the Earth was able to fit in your house. • The gravity would be enormous. ...
... • First to half its size and then a quarter. • Then even smaller. Imagine that the entire mass of the Earth was able to fit in your house. • The gravity would be enormous. ...
The Electromagnetic Spectrum: Astronomy 1
... Ultraviolet: The galaxy M94. Here clusters of bright, young stars have formed a ring nearly 7,000 light years across. The stars are very hot and show up in the ultraviolet region of the spectrum. The image was made with a telescope carried aboard a space shuttle. ...
... Ultraviolet: The galaxy M94. Here clusters of bright, young stars have formed a ring nearly 7,000 light years across. The stars are very hot and show up in the ultraviolet region of the spectrum. The image was made with a telescope carried aboard a space shuttle. ...
Document
... Ultraviolet: The galaxy M94. Here clusters of bright, young stars have formed a ring nearly 7,000 light years across. The stars are very hot and show up in the ultraviolet region of the spectrum. The image was made with a telescope carried aboard a space shuttle. ...
... Ultraviolet: The galaxy M94. Here clusters of bright, young stars have formed a ring nearly 7,000 light years across. The stars are very hot and show up in the ultraviolet region of the spectrum. The image was made with a telescope carried aboard a space shuttle. ...
More detailed notes - Particle Physics and Particle Astrophysics
... rather than convective: the core material is not mixed, and the very centre of the core runs out of hydrogen while the regions further out in the core still have some left (because the temperature, and hence the rate of fusion, is higher in the centre). The Sun will leave the main sequence gradually ...
... rather than convective: the core material is not mixed, and the very centre of the core runs out of hydrogen while the regions further out in the core still have some left (because the temperature, and hence the rate of fusion, is higher in the centre). The Sun will leave the main sequence gradually ...
star_temperatures
... still appear vastly different in brightness if their distances from Earth are different • Reason: intensity of light inversely proportional to the square of the distance the light has to travel – Light wave fronts from point sources are like the surfaces of expanding spheres ...
... still appear vastly different in brightness if their distances from Earth are different • Reason: intensity of light inversely proportional to the square of the distance the light has to travel – Light wave fronts from point sources are like the surfaces of expanding spheres ...
Intro Lecture: Stars - University of Redlands
... Mizar, 88 light years distant, is the middle star in the handle of the Big Dipper. It was the first binary star system to be imaged with a telescope. Spectroscopic observations show periodic Doppler shifts in the spectra of Mizar A and B, indicating that they are each binary stars. But they were too ...
... Mizar, 88 light years distant, is the middle star in the handle of the Big Dipper. It was the first binary star system to be imaged with a telescope. Spectroscopic observations show periodic Doppler shifts in the spectra of Mizar A and B, indicating that they are each binary stars. But they were too ...
HEA_Accretion_2003_04
... R~10,000km so nuclear burning more efficient by factor of ~50. • Accretion still important process however - nuclear burning on surface => nova ...
... R~10,000km so nuclear burning more efficient by factor of ~50. • Accretion still important process however - nuclear burning on surface => nova ...
PH607 – Galaxies
... ca. 1400 years, and 1 AU in 8 days. It would take the solar system about 225-250 million years to complete one orbit ("galactic year"), and so is thought to have completed about 20-25 orbits during its lifetime. (Age 13.4-13.6 billion years?) ...
... ca. 1400 years, and 1 AU in 8 days. It would take the solar system about 225-250 million years to complete one orbit ("galactic year"), and so is thought to have completed about 20-25 orbits during its lifetime. (Age 13.4-13.6 billion years?) ...
Stellar Evolution
... These stars are located very close to where the Hayashi limit intersects the Main Sequence. As you look at more massive stars, convection is found only in layers near the surface. By the time you get to stars that have masses similar to that of the Sun, the mass fraction that is involved in convect ...
... These stars are located very close to where the Hayashi limit intersects the Main Sequence. As you look at more massive stars, convection is found only in layers near the surface. By the time you get to stars that have masses similar to that of the Sun, the mass fraction that is involved in convect ...
final fate of a massive star
... singularity. The quantum gravity effects should dominate in such a regime. Thus, the collapsing star may hold secrets vital for man's search for a unified understanding of all forces of nature. The question then arises, whether such singularities are visible to faraway observers, or they are always ...
... singularity. The quantum gravity effects should dominate in such a regime. Thus, the collapsing star may hold secrets vital for man's search for a unified understanding of all forces of nature. The question then arises, whether such singularities are visible to faraway observers, or they are always ...
Which of the following is the best description of an Sc galaxy? A) a
... c. Molecular clouds d. Reflection nebulae e. Dark nebulae The presence of forbidden lines in the spectra of emission nebula indicates that the a. nebula has a very high temperature. b. nebula contains large amounts of hydrogen. c. gas in the nebula has a very low density. d. dust in the nebula is co ...
... c. Molecular clouds d. Reflection nebulae e. Dark nebulae The presence of forbidden lines in the spectra of emission nebula indicates that the a. nebula has a very high temperature. b. nebula contains large amounts of hydrogen. c. gas in the nebula has a very low density. d. dust in the nebula is co ...
Star formation
Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as ""stellar nurseries"" or ""star-forming regions"", collapse to form stars. As a branch of astronomy, star formation includes the study of the interstellar medium (ISM) and giant molecular clouds (GMC) as precursors to the star formation process, and the study of protostars and young stellar objects as its immediate products. It is closely related to planet formation, another branch of astronomy. Star formation theory, as well as accounting for the formation of a single star, must also account for the statistics of binary stars and the initial mass function.In June 2015, astronomers reported evidence for Population III stars in the Cosmos Redshift 7 galaxy at z = 6.60. Such stars are likely to have existed in the very early universe (i.e., at high redshift), and may have started the production of chemical elements heavier than hydrogen that are needed for the later formation of planets and life as we know it.