PDF version (two pages, including the full text)
... Southern Cross and the Pointers (Alpha and Beta Centauri). Alpha Centauri is a triple system, with two sun like stars orbiting each other every 80 years and a dim red dwarf tagging along at a much larger distance. This star was discovered by Robert Innes at the Union Observatory in Johannesburg in 1 ...
... Southern Cross and the Pointers (Alpha and Beta Centauri). Alpha Centauri is a triple system, with two sun like stars orbiting each other every 80 years and a dim red dwarf tagging along at a much larger distance. This star was discovered by Robert Innes at the Union Observatory in Johannesburg in 1 ...
3-Stars AM Adapted - vhs-ees-am
... type of death for Massive and Giant Blue Stars. They are a ...
... type of death for Massive and Giant Blue Stars. They are a ...
Document
... • Betelgeuse is the only star big enough to directly see its surface with a normal telescope. ...
... • Betelgeuse is the only star big enough to directly see its surface with a normal telescope. ...
Sample exam 2
... 13. Suppose you are looking at the emission spectrum of gaseous helium. You dutifully write down the wavelengths of emission. You notice a power dial on the side of emission lamp and, just for fun, decide to turn up the power. The color of the helium lamp changes and you look through the spectroscop ...
... 13. Suppose you are looking at the emission spectrum of gaseous helium. You dutifully write down the wavelengths of emission. You notice a power dial on the side of emission lamp and, just for fun, decide to turn up the power. The color of the helium lamp changes and you look through the spectroscop ...
Sample exam 2
... 11. The Sun started off its trajectory on the Hertzsprung-Russell diagram by initially moving down and to the left as it organized into a protostar. Explain this behavior in terms of temperature and luminosity, and give a reason for this behavior, given what we know about stars. 12. What are the con ...
... 11. The Sun started off its trajectory on the Hertzsprung-Russell diagram by initially moving down and to the left as it organized into a protostar. Explain this behavior in terms of temperature and luminosity, and give a reason for this behavior, given what we know about stars. 12. What are the con ...
properties of stars 2012
... Wien’s Law T = c/λm where T = temperature in kelvins, c is the speed of light, λm is the wavelength of maximum brightness. Spectral Classes There is a relationship between the temperature of a star and the appearance of the dark lines on its absorption spectrum. Star temperatures are classified, fro ...
... Wien’s Law T = c/λm where T = temperature in kelvins, c is the speed of light, λm is the wavelength of maximum brightness. Spectral Classes There is a relationship between the temperature of a star and the appearance of the dark lines on its absorption spectrum. Star temperatures are classified, fro ...
RFS_multiple_choice_Dec8_Key
... A. Messier objects: astronomical objects catalogued by Charles Messier B. They are all objects for which the first detailed study was carried out by the Mauna Kea Observatory in Hawaii C. Objects which lie within 5 degrees on either side of the ecliptic, and are hence occulted by the moon at some ti ...
... A. Messier objects: astronomical objects catalogued by Charles Messier B. They are all objects for which the first detailed study was carried out by the Mauna Kea Observatory in Hawaii C. Objects which lie within 5 degrees on either side of the ecliptic, and are hence occulted by the moon at some ti ...
August Skies
... lopsided house or, if someone insisted that it represent a primate type figure, I’d make it a gnome with a big pointy hat and name him Gulcifer. Given the choices, how would you describe this stellar grouping? ...
... lopsided house or, if someone insisted that it represent a primate type figure, I’d make it a gnome with a big pointy hat and name him Gulcifer. Given the choices, how would you describe this stellar grouping? ...
Space Science Unit
... • This chart uses surface temperature of the star and the absolute magnitude (brightness) of the star to help astronomers decide which phase of the star’s life cycle the star is in and other important information about the star. • Most stars are what we consider main sequence (including our sun). Th ...
... • This chart uses surface temperature of the star and the absolute magnitude (brightness) of the star to help astronomers decide which phase of the star’s life cycle the star is in and other important information about the star. • Most stars are what we consider main sequence (including our sun). Th ...
File
... OBJECTIVE: Compare a stars color, temperature, brightness, and size to its spectral class. PURPOSE: Plot stars according to brightness and temperature to create an HR diagram. PROCEDURES: 1. Study the star data table on the back. 2. The sun, used as a standard brightness, is given a value of 1. The ...
... OBJECTIVE: Compare a stars color, temperature, brightness, and size to its spectral class. PURPOSE: Plot stars according to brightness and temperature to create an HR diagram. PROCEDURES: 1. Study the star data table on the back. 2. The sun, used as a standard brightness, is given a value of 1. The ...
09astrophysics_2007Nov
... Formula: Distance (pc)=1/parallax Limiting Optical resolution of telescope (due to wave nature of light) limits smallest parallax we can measure ...
... Formula: Distance (pc)=1/parallax Limiting Optical resolution of telescope (due to wave nature of light) limits smallest parallax we can measure ...
Monday, October 27
... observed to have the same apparent brightness. Which one is more distant? • Star A • Star B • Same distance ...
... observed to have the same apparent brightness. Which one is more distant? • Star A • Star B • Same distance ...
FRAC TRIVIA I QUIZ - Flint River Astronomy Club
... 14. ( 1 pt.) True or False: If you were standing on the floor at the center of the lunar crater Clavius, you could not see its 16,100-ft. walls in any direction. 15. (1 pt.) What is the largest of the 20 brightest stars in actual size? 16. (1 pt.) Which constellation contains the most naked-eye star ...
... 14. ( 1 pt.) True or False: If you were standing on the floor at the center of the lunar crater Clavius, you could not see its 16,100-ft. walls in any direction. 15. (1 pt.) What is the largest of the 20 brightest stars in actual size? 16. (1 pt.) Which constellation contains the most naked-eye star ...
HOMEWORK #1
... Just as brightness is related to apparent magnitude, luminosity is related to a term called “absolute magnitude.” Astronomers refer to a star’s “absolute magnitude (M)” as the apparent magnitude it would have at an arbitrary standardized distance of 10 parsecs (i.e., 32.6 light-years). #2. Combine ...
... Just as brightness is related to apparent magnitude, luminosity is related to a term called “absolute magnitude.” Astronomers refer to a star’s “absolute magnitude (M)” as the apparent magnitude it would have at an arbitrary standardized distance of 10 parsecs (i.e., 32.6 light-years). #2. Combine ...
Word
... Just as brightness is related to apparent magnitude, luminosity is related to a term called “absolute magnitude.” Astronomers refer to a star’s “absolute magnitude (M)” as the apparent magnitude it would have at an arbitrary standardized distance of 10 parsecs (i.e., 32.6 light-years). #2. Combine ...
... Just as brightness is related to apparent magnitude, luminosity is related to a term called “absolute magnitude.” Astronomers refer to a star’s “absolute magnitude (M)” as the apparent magnitude it would have at an arbitrary standardized distance of 10 parsecs (i.e., 32.6 light-years). #2. Combine ...
the lab handout here
... Which of the stars you plotted was the brightest? ____________ hottest? ____________ ...
... Which of the stars you plotted was the brightest? ____________ hottest? ____________ ...
Morning Announcements
... bright it would appear if we could move it to a distance of 10 parsecs (about 33 light-years). 11) Where would Betelgeuse appear brighter, in its true location or if it were at a distance of 10 parsecs? Explain your reasoning. ...
... bright it would appear if we could move it to a distance of 10 parsecs (about 33 light-years). 11) Where would Betelgeuse appear brighter, in its true location or if it were at a distance of 10 parsecs? Explain your reasoning. ...
Starlight and What it Tells Us
... The Heavens Are Not Changeless • The Stars Move – Most of our constellations would have been unrecognizable to Neanderthal Man ...
... The Heavens Are Not Changeless • The Stars Move – Most of our constellations would have been unrecognizable to Neanderthal Man ...
Astronomy Chapter 13 Name
... P. A pair of stars held together by their mutual gravity and in orbit about each other, and which can be seen with a telescope as separate objects ...
... P. A pair of stars held together by their mutual gravity and in orbit about each other, and which can be seen with a telescope as separate objects ...
25 Study Guide
... • Binary stars can be used to determine stellar mass. • The nearest stars have the largest parallax angles, while those of distant stars are too small to measure. • Three factors control the apparent brightness of a star as seen from Earth: how big it is, how hot it is, and how far away it is. • A H ...
... • Binary stars can be used to determine stellar mass. • The nearest stars have the largest parallax angles, while those of distant stars are too small to measure. • Three factors control the apparent brightness of a star as seen from Earth: how big it is, how hot it is, and how far away it is. • A H ...
Canis Minor
Canis Minor /ˌkeɪnɨs ˈmaɪnər/ is a small constellation in the northern celestial hemisphere. In the second century, it was included as an asterism, or pattern, of two stars in Ptolemy's 48 constellations, and it is counted among the 88 modern constellations. Its name is Latin for ""lesser dog"", in contrast to Canis Major, the ""greater dog""; both figures are commonly represented as following the constellation of Orion the hunter.Canis Minor contains only two stars brighter than the fourth magnitude, Procyon (Alpha Canis Minoris), with a magnitude of 0.34, and Gomeisa (Beta Canis Minoris), with a magnitude of 2.9. The constellation's dimmer stars were noted by Johann Bayer, who named eight stars including Alpha and Beta, and John Flamsteed, who numbered fourteen. Procyon is the seventh-brightest star in the night sky, as well as one of the closest. A yellow-white main sequence star, it has a white dwarf companion. Gomeisa is a blue-white main sequence star. Luyten's Star is a ninth-magnitude red dwarf and the Solar System's next closest stellar neighbour in the constellation after Procyon. The fourth-magnitude HD 66141, which has evolved into an orange giant towards the end of its life cycle, was discovered to have a planet in 2012. There are two faint deep sky objects within the constellation's borders. The 11 Canis-Minorids are a meteor shower that can be seen in early December.