![Overview Notes - School District of La Crosse](http://s1.studyres.com/store/data/003358226_1-cd1bb640e53622a6a60613653ae3b4d2-300x300.png)
Overview Notes - School District of La Crosse
... a. largest single objects in the galaxy. 1. too large to form a single star, cloud fragments and forms star clusters. a. it is thought all stars originate in clusters. b. most of the stars in the universe are bound up in multiple star systems. 1. the sun is a minority star- a singleton star. ...
... a. largest single objects in the galaxy. 1. too large to form a single star, cloud fragments and forms star clusters. a. it is thought all stars originate in clusters. b. most of the stars in the universe are bound up in multiple star systems. 1. the sun is a minority star- a singleton star. ...
molecular clouds
... Protostar Becomes A Star • Once sufficient temperature (>= 10 million degrees K) and pressure is reached in the core of the protostar, nuclear fusion begins and the protostar has now officially become a star ...
... Protostar Becomes A Star • Once sufficient temperature (>= 10 million degrees K) and pressure is reached in the core of the protostar, nuclear fusion begins and the protostar has now officially become a star ...
September Evening Skies
... Our usual monthly maps are designed for stargazers just beginning to find their way around the sky. This month’s map is useful for serious stargazing from dark locations. It contains many more stars, inclusive to magnitude 4.5, and some fainter stars as needed to complete patterns or assist in locat ...
... Our usual monthly maps are designed for stargazers just beginning to find their way around the sky. This month’s map is useful for serious stargazing from dark locations. It contains many more stars, inclusive to magnitude 4.5, and some fainter stars as needed to complete patterns or assist in locat ...
What are stars?
... - We know now that the stars in a constellation are not necessarily very close together, but appear to be due to our line of sight - Examples – Orion, Ursa Major (Big Dipper) ...
... - We know now that the stars in a constellation are not necessarily very close together, but appear to be due to our line of sight - Examples – Orion, Ursa Major (Big Dipper) ...
Red Dwarfs and Barnard`s star. Their origin and significance to
... A red dwarf is a small and relatively cool star on the main sequence, being a M spectral type. Red dwarfs range in mass from a low of 0.075 solar masses (M☉) to about 0.50 M☉ and have a surface temperature of less than 4000 K. Our sun has 1 solar mass (M☉) and a surface temperature of 6000 K Red dwa ...
... A red dwarf is a small and relatively cool star on the main sequence, being a M spectral type. Red dwarfs range in mass from a low of 0.075 solar masses (M☉) to about 0.50 M☉ and have a surface temperature of less than 4000 K. Our sun has 1 solar mass (M☉) and a surface temperature of 6000 K Red dwa ...
Solutions to problems
... their explosive deaths. These heavier elements are important to prospect of planets because we believe the planets begin forming with the condensation of solid “seeds” of metal, rock, or ice, all of which are compose of elements besides H and He. 2. Following the work of Annie Jump Cannon, we divide ...
... their explosive deaths. These heavier elements are important to prospect of planets because we believe the planets begin forming with the condensation of solid “seeds” of metal, rock, or ice, all of which are compose of elements besides H and He. 2. Following the work of Annie Jump Cannon, we divide ...
CONSTELLATION CANES VENATICI the two hunting dogs Canes
... Canes Venatici represents two dogs, two hounds, or two greyhounds, on a leash or brache (two hounds in leash are known as a brache, which is the same word as brace, meaning pair, and embrace). Here the leash is held by Bootes, the Herdsman or Bear Driver as they together pursue the Great Bear, Ursa ...
... Canes Venatici represents two dogs, two hounds, or two greyhounds, on a leash or brache (two hounds in leash are known as a brache, which is the same word as brace, meaning pair, and embrace). Here the leash is held by Bootes, the Herdsman or Bear Driver as they together pursue the Great Bear, Ursa ...
Chapter 1 Starts and Galaxies
... Spectrum- band of colors formed when light passes through a prism Red shift- shift toward the red end of the spectrum of a star that is moving away from the Earth Doppler effect- apparent change in the wavelength of light that occurs when an object is moving toward or away from the Earth Big-bang th ...
... Spectrum- band of colors formed when light passes through a prism Red shift- shift toward the red end of the spectrum of a star that is moving away from the Earth Doppler effect- apparent change in the wavelength of light that occurs when an object is moving toward or away from the Earth Big-bang th ...
Astronomy
... inward force of gravity is balanced by the outward pressure from fusion and radiation inside a star ...
... inward force of gravity is balanced by the outward pressure from fusion and radiation inside a star ...
H-R Diagram - Faculty Website Listing
... Please read the section in textbook that talks about HR diagram. We have also discussed this in class with examples. It may be useful to have your class notes with you when you do the lab. You can also look them up on the class webpage. 1. Using Stellarium software to collect the information on abso ...
... Please read the section in textbook that talks about HR diagram. We have also discussed this in class with examples. It may be useful to have your class notes with you when you do the lab. You can also look them up on the class webpage. 1. Using Stellarium software to collect the information on abso ...
Chapter 27 Stars and Galaxies
... the surface 6000 can be seen with the unaided eye Over a trillion stars can be seen with the Hubble Space Telescope Apparent Magnitude: brightness as it appears from Earth Absolute Magnitude: brightness as it appears 32.6 ly away ...
... the surface 6000 can be seen with the unaided eye Over a trillion stars can be seen with the Hubble Space Telescope Apparent Magnitude: brightness as it appears from Earth Absolute Magnitude: brightness as it appears 32.6 ly away ...
Star Classification
... The first people to combine a camera with a spectroscope were the father and son team of John and Henry Draper in the 1870s. Their work was carried on by Edward C. Pickering who, by 1918, had listed the spectra of over 200000 stars. Using details about luminosity and composition, stars are classifie ...
... The first people to combine a camera with a spectroscope were the father and son team of John and Henry Draper in the 1870s. Their work was carried on by Edward C. Pickering who, by 1918, had listed the spectra of over 200000 stars. Using details about luminosity and composition, stars are classifie ...
Print Activity - Let`s Talk Science
... A constellation is a group of stars in the sky that form a fixed pattern in relation to each other, as viewed from the Earth. Astronomers currently recognize 88 constellations in the Northern and Southern hemispheres. Our modern constellation system comes to us from the ancient Greeks. No one is sur ...
... A constellation is a group of stars in the sky that form a fixed pattern in relation to each other, as viewed from the Earth. Astronomers currently recognize 88 constellations in the Northern and Southern hemispheres. Our modern constellation system comes to us from the ancient Greeks. No one is sur ...
07-01TheColsmologicalDistanceLadder
... Cepheid Variables: How to measure the distance to a galaxy using Cepheid variable stars: 1. Find the Cepheid, measure its spectrum 2. Measure a couple periods, and its apparent magnitude m 3. Look up its absolute magnitude 4. Use M = m - 5 log10(d/10) to find d ...
... Cepheid Variables: How to measure the distance to a galaxy using Cepheid variable stars: 1. Find the Cepheid, measure its spectrum 2. Measure a couple periods, and its apparent magnitude m 3. Look up its absolute magnitude 4. Use M = m - 5 log10(d/10) to find d ...
Stars Unit 1-2: Stars
... • Using light-years, Alpha Centauri can be expressed as being 4.3 light-years away. – Sirius is 9 light-years away. – Vega, the brightest summertime star, is 27 lightyears away. – Polaris, the North Star, is 680 light-years away. – The Milky Way Galaxy is about 100,000 lightyears across. ...
... • Using light-years, Alpha Centauri can be expressed as being 4.3 light-years away. – Sirius is 9 light-years away. – Vega, the brightest summertime star, is 27 lightyears away. – Polaris, the North Star, is 680 light-years away. – The Milky Way Galaxy is about 100,000 lightyears across. ...
Microsoft Word Document
... 7. Why does the core of a massive star collapse once iron is created? (this collapse happens in a millisecond at nearly 1/3 the speed of light!) ...
... 7. Why does the core of a massive star collapse once iron is created? (this collapse happens in a millisecond at nearly 1/3 the speed of light!) ...
Astronomy Galaxies & The Universe
... uses data from lots of stars, so there are lots of dots. The position of each dot on the diagram corresponds to the star's luminosity and its temperature The vertical position represents the star's luminosity (absolute magnitude). The horizontal position represents the star's surface temperature ...
... uses data from lots of stars, so there are lots of dots. The position of each dot on the diagram corresponds to the star's luminosity and its temperature The vertical position represents the star's luminosity (absolute magnitude). The horizontal position represents the star's surface temperature ...
Ursa Minor
![](https://en.wikipedia.org/wiki/Special:FilePath/Sidney_Hall_-_Urania's_Mirror_-_Draco_and_Ursa_Minor.jpg?width=300)
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.