galaxies - GEOCITIES.ws
... • Nebula is a vast cloud of dust and gas which stars are born. • Emission Nebulae • Emission Nebulae are the most colorful. They shine internally from young stars still in their stellar nursery. A large telescope (8+ inches) will reveal most of the colors. To see all of the colors a long-exposure ph ...
... • Nebula is a vast cloud of dust and gas which stars are born. • Emission Nebulae • Emission Nebulae are the most colorful. They shine internally from young stars still in their stellar nursery. A large telescope (8+ inches) will reveal most of the colors. To see all of the colors a long-exposure ph ...
N(M)
... prob of spontaneous flip = 1 in few million yrs, (highly forbidden) but there is a lot of H! ...
... prob of spontaneous flip = 1 in few million yrs, (highly forbidden) but there is a lot of H! ...
chapter 28 pages 747-752
... • Cosmic (microwave) background radiation detected by antennae in 1965 coming from all directions in space • The emitter of this radiation has a temperature of that predicted by the big bang theory • Therefore scientists interpret this to be coming from the beginning of the big bang ...
... • Cosmic (microwave) background radiation detected by antennae in 1965 coming from all directions in space • The emitter of this radiation has a temperature of that predicted by the big bang theory • Therefore scientists interpret this to be coming from the beginning of the big bang ...
Deep Space and Solar System
... breaks up the light from a star into its component colors in order to identify which elements are present in that star • A spectral line is a bright or dark line found in the spectrum of some radiant sources • A dark line spectrum from a star – Is like a fingerprint or a bar code ...
... breaks up the light from a star into its component colors in order to identify which elements are present in that star • A spectral line is a bright or dark line found in the spectrum of some radiant sources • A dark line spectrum from a star – Is like a fingerprint or a bar code ...
Ch. 28 Test Topics
... - Know what redshift and blueshift is and when it happens. -Know that the faster the source of light is moving the greater the shift of light. -Know that Edwin Hubble discovered that the farther away a galaxy was, the faster it was moving away from Earth. -Know the universe is continually expanding ...
... - Know what redshift and blueshift is and when it happens. -Know that the faster the source of light is moving the greater the shift of light. -Know that Edwin Hubble discovered that the farther away a galaxy was, the faster it was moving away from Earth. -Know the universe is continually expanding ...
Key Topics Astronomy Unit
... expansion of the universe and suggests that it was once compacted. 2. If the universe was initially very hot as the big bang suggests, there should be remnants of this radiation. • In 1965, Radioastronomers Arno Penzias and Robert Wilson discovered Cosmic Background Radiation, which supports the Big ...
... expansion of the universe and suggests that it was once compacted. 2. If the universe was initially very hot as the big bang suggests, there should be remnants of this radiation. • In 1965, Radioastronomers Arno Penzias and Robert Wilson discovered Cosmic Background Radiation, which supports the Big ...
The Science behind the Stars ctY Astrophysics by Spencer McClung
... center of a supermassive explosion billions of times brighter than our Sun. Intense, right? Astrophysics is all about extremes. We dealt with numbers as high as 1030 when calculating masses of supernovas and as low as 10-30 when calculating atomic masses and energies. By figuring out how much energy ...
... center of a supermassive explosion billions of times brighter than our Sun. Intense, right? Astrophysics is all about extremes. We dealt with numbers as high as 1030 when calculating masses of supernovas and as low as 10-30 when calculating atomic masses and energies. By figuring out how much energy ...
Day-5
... Much of the gas is in cool interstellar clouds, with hotter intercloud gas between them. Many clouds are cold enough for hydrogen to be in the H2 molecule. These are called molecular clouds. Temperatures are below 300 K emit radio waves. Many other molecules are in the mix. Stars form in ...
... Much of the gas is in cool interstellar clouds, with hotter intercloud gas between them. Many clouds are cold enough for hydrogen to be in the H2 molecule. These are called molecular clouds. Temperatures are below 300 K emit radio waves. Many other molecules are in the mix. Stars form in ...
Our Solar System
... 1. Universe- contains everything that may or may not exist in space 2. Galaxy- system of stars held together by gravity. 3 types: Spiral, Elliptical, and Irregular. Ex: Milky Way 3. Nebula= interstellar cloud of gas 4. Star- self luminous sphere of gas. Ex: sun 5. Planet- celestial object moving in ...
... 1. Universe- contains everything that may or may not exist in space 2. Galaxy- system of stars held together by gravity. 3 types: Spiral, Elliptical, and Irregular. Ex: Milky Way 3. Nebula= interstellar cloud of gas 4. Star- self luminous sphere of gas. Ex: sun 5. Planet- celestial object moving in ...
Name: Notes – #6 Our Sky Through Binoculars and Telescopes 1
... 7. M31, the Andromeda Galaxy, is ___________________________ light years away. ...
... 7. M31, the Andromeda Galaxy, is ___________________________ light years away. ...
Universe CBA Review - cms16-17
... 33.) What type of EMS wave has the longest wavelength? _____________________ 34.) Does infrared or x-ray waves have a longer wavelength? __________________ 35.) What type of wave has the highest frequency in the EMS? __________________ 36.) Draw and label the visible light spectrum ...
... 33.) What type of EMS wave has the longest wavelength? _____________________ 34.) Does infrared or x-ray waves have a longer wavelength? __________________ 35.) What type of wave has the highest frequency in the EMS? __________________ 36.) Draw and label the visible light spectrum ...
Galaxies - science1d
... million years to travel once around the centre of the galaxy •This means that in ...
... million years to travel once around the centre of the galaxy •This means that in ...
Milky Way
... Nebula Search • William Herschel cataloged over 1000 nebulae. – Many star clusters – Open clusters matched the Milky Way – Globular clusters more uniform in space ...
... Nebula Search • William Herschel cataloged over 1000 nebulae. – Many star clusters – Open clusters matched the Milky Way – Globular clusters more uniform in space ...
Sun, Star Types and Luminosity
... d. Blue super giants are the brightest and exhibit the highest temperature ...
... d. Blue super giants are the brightest and exhibit the highest temperature ...
Useful Things to Study (#2)
... Spectroscopic binaries, eclipsing binaries - what good are they? How does interstellar dust affect the light of stars along the line of sight? What fraction (by mass) of the interstellar medium is in gas and what fraction in dust? different components of the interstellar medium (cold atomic gas, eve ...
... Spectroscopic binaries, eclipsing binaries - what good are they? How does interstellar dust affect the light of stars along the line of sight? What fraction (by mass) of the interstellar medium is in gas and what fraction in dust? different components of the interstellar medium (cold atomic gas, eve ...
Chapter 21
... The sun is a medium-sized star. Stars that are much larger than the sun are called ______________ or __________________. Composition – The chemical composition of most stars is about 73 % ______________ and 25 % ____________________. How can astronomers infer which elements are found in stars? ___ ...
... The sun is a medium-sized star. Stars that are much larger than the sun are called ______________ or __________________. Composition – The chemical composition of most stars is about 73 % ______________ and 25 % ____________________. How can astronomers infer which elements are found in stars? ___ ...
The Great Bear and the Little Bear
... • They are much larger than planets and much further from Earth. • The sun is the closest star to Earth. • Most of the gas in the inside of a star is hydrogen and its temperature is over 20 million degrees Fahrenheit. There is also helium, a gas that is formed when the hydrogen molecules join togeth ...
... • They are much larger than planets and much further from Earth. • The sun is the closest star to Earth. • Most of the gas in the inside of a star is hydrogen and its temperature is over 20 million degrees Fahrenheit. There is also helium, a gas that is formed when the hydrogen molecules join togeth ...
11.1 Stars - St John Brebeuf
... It is estimated there are more stars in the universe than there are grains of sand on all the beaches on Earth. By peering through the interstellar matter (dust and gases), astronomers can observe the birth of stars. ...
... It is estimated there are more stars in the universe than there are grains of sand on all the beaches on Earth. By peering through the interstellar matter (dust and gases), astronomers can observe the birth of stars. ...
Name Date Period ______ 30.1 Characteristics of Stars Definitions
... 19. What are circumpolar stars? What is one example? ...
... 19. What are circumpolar stars? What is one example? ...
The Cycle of Star Formation
... being formed has a mass greater than about 5 M, it will ionize the surrounding gas. This is called an H II region. ...
... being formed has a mass greater than about 5 M, it will ionize the surrounding gas. This is called an H II region. ...
Stellar Evolution
... Carbon-Oxygen (C,O) core does not ignite Carbon fusion. He-burning shell keeps dumping C and O onto the core. C,O core collapses until gravity is balanced by pressure from a new state of matter: ...
... Carbon-Oxygen (C,O) core does not ignite Carbon fusion. He-burning shell keeps dumping C and O onto the core. C,O core collapses until gravity is balanced by pressure from a new state of matter: ...
Patterns in the night sky - Laureate International College
... The distance between stars and galaxies is too great to be covered in a human lifetime. AUs are not sufficient. A light-year is the distance that light travels in one year. Light travels at a speed of 300 000 km/s – the fastest! One light year covers 9.5 trillion km. Most stars and galaxies are hun ...
... The distance between stars and galaxies is too great to be covered in a human lifetime. AUs are not sufficient. A light-year is the distance that light travels in one year. Light travels at a speed of 300 000 km/s – the fastest! One light year covers 9.5 trillion km. Most stars and galaxies are hun ...
Chapter 21 power point - Laconia School District
... Radio telescope • A device used to detect radio waves from objects in space. ...
... Radio telescope • A device used to detect radio waves from objects in space. ...
H II region
An H II region is a large, low-density cloud of partially ionized gas in which star formation has recently taken place. The short-lived blue stars forged in these regions emit copious amounts of ultraviolet light that ionize the surrounding gas. H II regions—sometimes several hundred light-years across—are often associated with giant molecular clouds. The first known H II region was the Orion Nebula, which was discovered in 1610 by Nicolas-Claude Fabri de Peiresc.H II regions are named for the large amount of ionised atomic hydrogen they contain, referred to as H II, pronounced H-two by astronomers (an H I region being neutral atomic hydrogen, and H2 being molecular hydrogen). Such regions have extremely diverse shapes, because the distribution of the stars and gas inside them is irregular. They often appear clumpy and filamentary, sometimes showing bizarre shapes such as the Horsehead Nebula. H II regions may give birth to thousands of stars over a period of several million years. In the end, supernova explosions and strong stellar winds from the most massive stars in the resulting star cluster will disperse the gases of the H II region, leaving behind a cluster of birthed stars such as the Pleiades.H II regions can be seen to considerable distances in the universe, and the study of extragalactic H II regions is important in determining the distance and chemical composition of other galaxies. Spiral and irregular galaxies contain many H II regions, while elliptical galaxies are almost devoid of them. In the spiral galaxies, including the Milky Way, H II regions are concentrated in the spiral arms, while in the irregular galaxies they are distributed chaotically. Some galaxies contain huge H II regions, which may contain tens of thousands of stars. Examples include the 30 Doradus region in the Large Magellanic Cloud and NGC 604 in the Triangulum Galaxy.