What Can We See in the Night Sky?
... Star Clusters • Groups of stars that are close together and travel together are known as star clusters • Star clusters are part of galaxies • Open clusters – contain about 50 to 1000 stars – dispersed along the Milky Way’s main band ...
... Star Clusters • Groups of stars that are close together and travel together are known as star clusters • Star clusters are part of galaxies • Open clusters – contain about 50 to 1000 stars – dispersed along the Milky Way’s main band ...
The Milky Way
... Constellations The stars in constellations are not physically close to each other in space. They were believed to represent great heroes and mythological figures. Their position in the sky seemed to tell stories that were handed down from generation to generation over thousands of years. Different ...
... Constellations The stars in constellations are not physically close to each other in space. They were believed to represent great heroes and mythological figures. Their position in the sky seemed to tell stories that were handed down from generation to generation over thousands of years. Different ...
Light from stars part II
... 1) Blackbody – all solids, liquids and gases radiate EM waves at all wavelengths with a distribution of energy over the wavelengths that depends on temperature T ...
... 1) Blackbody – all solids, liquids and gases radiate EM waves at all wavelengths with a distribution of energy over the wavelengths that depends on temperature T ...
ASTR-1020 Exam 2 Review Questions
... these two stars are farther from Earth? (Remember that the parallax angle is inversely proportional to the distance.) 4. What is the moving cluster method? Which star cluster is the foundation of the distance indicator method of figuring out the distance to external galaxies? 5. What is the differen ...
... these two stars are farther from Earth? (Remember that the parallax angle is inversely proportional to the distance.) 4. What is the moving cluster method? Which star cluster is the foundation of the distance indicator method of figuring out the distance to external galaxies? 5. What is the differen ...
Winter Stargazing - Trimble County Schools
... Distance-11.4 LY Diameter-2.8 Million km Luminosity-7 Suns It is the eighth brightest star in the sky, only four LY away from Sirius. • It is also a double star, revolved by a white dwarf, Procyon B. • The name means “before the dog” because it rises in the east well before Sirius. ...
... Distance-11.4 LY Diameter-2.8 Million km Luminosity-7 Suns It is the eighth brightest star in the sky, only four LY away from Sirius. • It is also a double star, revolved by a white dwarf, Procyon B. • The name means “before the dog” because it rises in the east well before Sirius. ...
Ch. 25 Properties of Stars
... The more negative, the brighter and the more positive, the dimmer Astronomers estimate that there are 200-400 billion stars in our Milky Way Galaxy, but we can only see about 2,500 visible to the naked eye on Earth ...
... The more negative, the brighter and the more positive, the dimmer Astronomers estimate that there are 200-400 billion stars in our Milky Way Galaxy, but we can only see about 2,500 visible to the naked eye on Earth ...
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 ...
The Science behind the Stars ctY Astrophysics by Spencer McClung
... n day three of CTY Astrophysics, we were given a series of images of light from a star and had to determine the mass of its binary companion. For an hour we used two sticks to monitor small changes in the star’s light and then used a very long series of calculations with very big numbers. In the end ...
... n day three of CTY Astrophysics, we were given a series of images of light from a star and had to determine the mass of its binary companion. For an hour we used two sticks to monitor small changes in the star’s light and then used a very long series of calculations with very big numbers. In the end ...
H-R Diagram - Faculty Website Listing
... 3) Choose one of the White Dwarf Stars. Calculate its radius in terms of the Sun’s radius. Hint we have done an example in class, see the PowerPoint notes on class webpage. Show your work in detail. ...
... 3) Choose one of the White Dwarf Stars. Calculate its radius in terms of the Sun’s radius. Hint we have done an example in class, see the PowerPoint notes on class webpage. Show your work in detail. ...
LT 5: I can describe how astronomers determine the composition
... All stars have dark-line spectra Because different elements absorb different wavelengths of light, scientists can determine the elements that make up a star by studying its spectrum ...
... All stars have dark-line spectra Because different elements absorb different wavelengths of light, scientists can determine the elements that make up a star by studying its spectrum ...
the life cycle of stars
... • After a sun-like star forms, it enters the main-sequence. • This is the second and longest stage of its life. • Energy is generated in the core and causes the star to shine. • The size of the star changes very little as long as its supply of hydrogen nuclei fuse into helium nuclei. ...
... • After a sun-like star forms, it enters the main-sequence. • This is the second and longest stage of its life. • Energy is generated in the core and causes the star to shine. • The size of the star changes very little as long as its supply of hydrogen nuclei fuse into helium nuclei. ...
Observing Information for Waddesdon, 4th October 2014
... Cygnus. It is 1400 light years distant so is a tremendously bright star Vega is the brightest of the three stars; it is almost overhead high to the S or SW and is the brightest star in the constellation Lyra. It is 25 light years away so quite close. Altair is south and about half way from the horiz ...
... Cygnus. It is 1400 light years distant so is a tremendously bright star Vega is the brightest of the three stars; it is almost overhead high to the S or SW and is the brightest star in the constellation Lyra. It is 25 light years away so quite close. Altair is south and about half way from the horiz ...
Properties of Stars
... Measuring Distance to Stars • Parallax is determined by taking a picture of a star at one time, and another picture six months later; using the angle between its apparent shift, astronomers can determine how far away it is • The nearest stars have large parallax angles, while those of distant stars ...
... Measuring Distance to Stars • Parallax is determined by taking a picture of a star at one time, and another picture six months later; using the angle between its apparent shift, astronomers can determine how far away it is • The nearest stars have large parallax angles, while those of distant stars ...
Table Number: _____
... Using the distance modulus equation, d= 10 x 10(m-M)/5 , in the Introduction to calculate the distance to the cluster in parsecs. Then convert your answer to light years. Show all work in the ...
... Using the distance modulus equation, d= 10 x 10(m-M)/5 , in the Introduction to calculate the distance to the cluster in parsecs. Then convert your answer to light years. Show all work in the ...
here - Lund Observatory
... hydrogen abundance is X = 0.73 and that each helium nucleus formed weighs 0.7 % less than the four protons, from which it was formed. a) How much mass does the Sun loose per second due to hydrogen burning? b) How much of the hydrogen in the Sun has been transformed into helium up til now if the age ...
... hydrogen abundance is X = 0.73 and that each helium nucleus formed weighs 0.7 % less than the four protons, from which it was formed. a) How much mass does the Sun loose per second due to hydrogen burning? b) How much of the hydrogen in the Sun has been transformed into helium up til now if the age ...
Auriga (constellation)
Auriga is one of the 48 constellations listed by the 2nd-century astronomer Ptolemy and remains one of the 88 modern constellations. Located north of the celestial equator, its name is the Latin word for ""charioteer"", associating it with various mythological charioteers, including Erichthonius and Myrtilus. Auriga is most prominent during winter evenings in the Northern Hemisphere, along with the five other constellations that have stars in the Winter Hexagon asterism. Because of its northern declination, Auriga is only visible in its entirety as far as 34° south; for observers farther south it lies partially or fully below the horizon. A large constellation, with an area of 657 square degrees, it is half the size of the largest constellation, Hydra.Its brightest star, Capella, is an unusual multiple star system among the brightest stars in the night sky. Beta Aurigae is an interesting variable star in the constellation; Epsilon Aurigae, a nearby eclipsing binary with an unusually long period, has been studied intensively. Because of its position near the winter Milky Way, Auriga has many bright open clusters in its borders, including M36, M37, and M38, popular targets for amateur astronomers. In addition, it has one prominent nebula, the Flaming Star Nebula, associated with the variable star AE Aurigae.In Chinese mythology, Auriga's stars were incorporated into several constellations, including the celestial emperors' chariots, made up of the modern constellation's brightest stars. Auriga is home to the radiant for the Aurigids, Zeta Aurigids, Delta Aurigids, and the hypothesized Iota Aurigids.