What is a star?
... • Two or more stars may be bound together by gravity, which causes them to orbit each other. • Three or more stars that are bound by gravity are called multiple stars or multiple star systems. The largest object in our solar system is the sun, which is a medium sized star. ...
... • Two or more stars may be bound together by gravity, which causes them to orbit each other. • Three or more stars that are bound by gravity are called multiple stars or multiple star systems. The largest object in our solar system is the sun, which is a medium sized star. ...
Lab 2: The Planisphere
... and direction of the Milky Way across the sky. Looking north from Cygnus, there are other constellations that appear to lie in, or partially in, the plane of the Milky Way. Name two of these constellations. ...
... and direction of the Milky Way across the sky. Looking north from Cygnus, there are other constellations that appear to lie in, or partially in, the plane of the Milky Way. Name two of these constellations. ...
Life on the Main Sequence + Expansion to Red Giant
... Guidepost Stars form from the interstellar medium and reach stability fusing hydrogen in their cores. This chapter is about the long, stable middle age of stars on the main sequence and their old age as they swell to become giant stars. Here you will answer four essential questions: • Why is there ...
... Guidepost Stars form from the interstellar medium and reach stability fusing hydrogen in their cores. This chapter is about the long, stable middle age of stars on the main sequence and their old age as they swell to become giant stars. Here you will answer four essential questions: • Why is there ...
Activity 4
... There are a number of ways to measure distances to stars and galaxies. One of the most important methods for measuring stellar distances is parallax. Parallax is the apparent motion of stars as ...
... There are a number of ways to measure distances to stars and galaxies. One of the most important methods for measuring stellar distances is parallax. Parallax is the apparent motion of stars as ...
The fantastic journey of that ring on your finger: From
... extremely high speeds, dispersing all of the elements that comprise them. This detritus coalesces with more hydrogen and helium to create new gas clouds that will condense and create another generation of stars and rocky planets like our own. But what about elements heavier than iron? If we concede ...
... extremely high speeds, dispersing all of the elements that comprise them. This detritus coalesces with more hydrogen and helium to create new gas clouds that will condense and create another generation of stars and rocky planets like our own. But what about elements heavier than iron? If we concede ...
The Young Astronomers Newsletter Volume 22 Number 3 February
... 2009 FD had been ranked among the top five objects in a list of the most dangerous objects, but new observations have now shown that it is far less likely to hit the Earth than had been feared. ...
... 2009 FD had been ranked among the top five objects in a list of the most dangerous objects, but new observations have now shown that it is far less likely to hit the Earth than had been feared. ...
Astronomy 104: Homework Set 6 Due: Wednesday, April 1, 2015
... Earth. Use the relation between brightness (flux), luminosity and distance (see Destination 7) to determine the ratio of the distance to M 31 and the distance of the LMC? If the LMC is 50 kpc distant, how far is M 31 from Earth? Is your result with 10% of the value for the distance of M31 given in D ...
... Earth. Use the relation between brightness (flux), luminosity and distance (see Destination 7) to determine the ratio of the distance to M 31 and the distance of the LMC? If the LMC is 50 kpc distant, how far is M 31 from Earth? Is your result with 10% of the value for the distance of M31 given in D ...
Stages - A Summary - University of Dayton
... experience similar evolutionary tracks on the H-R Diagram, but end up at different points on the ZAMS; recall that mass => gravity => squeezing => core T => fusion E => luminosity.] Although lowmass stars seem to vastly outnumber their high-mass relatives, a star with too small a mass (<.08 suns) wi ...
... experience similar evolutionary tracks on the H-R Diagram, but end up at different points on the ZAMS; recall that mass => gravity => squeezing => core T => fusion E => luminosity.] Although lowmass stars seem to vastly outnumber their high-mass relatives, a star with too small a mass (<.08 suns) wi ...
Chapter 1 - A Modern View of the Universe
... 1 light-year = (speed of light) (1 year) km 365 days 24 hr 60 min 60 s ...
... 1 light-year = (speed of light) (1 year) km 365 days 24 hr 60 min 60 s ...
Star Classification - University of Louisville
... they are beginning to run out of hydrogen, they cool down and glow a more orangey color. A star called Betelguese is extremely old, but also extremely big. In fact, it is 500 times wider than the Sun and would, if it was at the center of the Sun's Solar System, be big enough to stretch nearly to Jup ...
... they are beginning to run out of hydrogen, they cool down and glow a more orangey color. A star called Betelguese is extremely old, but also extremely big. In fact, it is 500 times wider than the Sun and would, if it was at the center of the Sun's Solar System, be big enough to stretch nearly to Jup ...
ppt - Astronomy & Physics
... Given measured ∆λ, and the wavelength of the atomic line were are looking at, l, we can then get velocity v of object using the speed of light c ...
... Given measured ∆λ, and the wavelength of the atomic line were are looking at, l, we can then get velocity v of object using the speed of light c ...
Picture Match Words Giant Planet Phase Habitable Zone Fluctuate
... 1. The combined gravity (pull) of the Sun and Moon result in very high tides. ...
... 1. The combined gravity (pull) of the Sun and Moon result in very high tides. ...
Document
... Stars Have Life Cycles Gravity pulls gas and dust closer together in some regions of a nebula – as the matter contracts, it forms a hot, dense sphere – the sphere becomes a star if its center grows hot and dense enough for fusion to occur When a star dies, its matter ...
... Stars Have Life Cycles Gravity pulls gas and dust closer together in some regions of a nebula – as the matter contracts, it forms a hot, dense sphere – the sphere becomes a star if its center grows hot and dense enough for fusion to occur When a star dies, its matter ...
AST 207 Test 1 28 September 2011
... Star X is on a bigger orbit. The radius of the orbit is the distance from the star to the center of mass of the star-companion system. Since , the mass of the companion is 1000 bigger for star X than for 51 Peg. Star X is orbiting another star, not a planet. 2. Use the drawing on the front page, whi ...
... Star X is on a bigger orbit. The radius of the orbit is the distance from the star to the center of mass of the star-companion system. Since , the mass of the companion is 1000 bigger for star X than for 51 Peg. Star X is orbiting another star, not a planet. 2. Use the drawing on the front page, whi ...
Grand Tour Worksheet - School District of La Crosse
... 12. Are solid surfaces common throughout the universe? 13. Why didn’t Jupiter look too complicated from earth? ...
... 12. Are solid surfaces common throughout the universe? 13. Why didn’t Jupiter look too complicated from earth? ...
Introduction to Astronomy - Northumberland Astronomical Society
... Position Horizon and equatorial coordinate systems. Distance Astronomical Unit (AU), light-years and parsecs. Brightness The magnitude scale. We’ll also examine how our location on the Earth affects the stars and constellations we can see and how changes in the tilt of the Earth’s axis change the vi ...
... Position Horizon and equatorial coordinate systems. Distance Astronomical Unit (AU), light-years and parsecs. Brightness The magnitude scale. We’ll also examine how our location on the Earth affects the stars and constellations we can see and how changes in the tilt of the Earth’s axis change the vi ...
Wien`s Law and Temperature
... the surface temperature of each of these stars. Be careful, real stars don’t have the perfect curves that were shown on the blackbody simulation. Fill in the table below for the temperature estimate for each star. If the peak wavelength is not on the spectra graph for the star, state whether it is o ...
... the surface temperature of each of these stars. Be careful, real stars don’t have the perfect curves that were shown on the blackbody simulation. Fill in the table below for the temperature estimate for each star. If the peak wavelength is not on the spectra graph for the star, state whether it is o ...
s*t*a*r chart - Ontario Science Centre
... shifts the entire sky. This is the same motion that swings the Sun on its daily eastto-west trek. The rotational hub is Polaris, the North Star, located almost exactly above the Earth’s North Pole. Everything majestically marches counter-clockwise around it, a motion that becomes evident after about ...
... shifts the entire sky. This is the same motion that swings the Sun on its daily eastto-west trek. The rotational hub is Polaris, the North Star, located almost exactly above the Earth’s North Pole. Everything majestically marches counter-clockwise around it, a motion that becomes evident after about ...
Types of Stars http://space.about.com/od/stars/tp/What-Are
... star is a system of two stars that are gravitationally bound to each other. They orbit around a common point, called the center of mass. It is estimated that about half of all the stars in our galaxy are part of a binary system. Visual binaries can be seen as two separate stars through a telescope. ...
... star is a system of two stars that are gravitationally bound to each other. They orbit around a common point, called the center of mass. It is estimated that about half of all the stars in our galaxy are part of a binary system. Visual binaries can be seen as two separate stars through a telescope. ...
jackie822 beanerbutt777 life cycle of a star
... The nebula is a cloud of gas and dust. It is not yet a star. ...
... The nebula is a cloud of gas and dust. It is not yet a star. ...
Newton`s Law of Universal Gravitation
... center of thee galaxy with a radius of 2.2X1020 m. The period of one rotation is 2.6X108 years. a. Find the approximate mass of the galaxy. b. Assume the average star in the galaxy has the mass of the sun, find the number of stars in the galaxy. ...
... center of thee galaxy with a radius of 2.2X1020 m. The period of one rotation is 2.6X108 years. a. Find the approximate mass of the galaxy. b. Assume the average star in the galaxy has the mass of the sun, find the number of stars in the galaxy. ...
Today`s Powerpoint
... While on Main Sequence, stellar core has H -> He fusion, by p-p chain in stars like Sun or less massive. In more massive stars, “CNO cycle” becomes more important. ...
... While on Main Sequence, stellar core has H -> He fusion, by p-p chain in stars like Sun or less massive. In more massive stars, “CNO cycle” becomes more important. ...
Review for Exam 2
... 2) What do all stars on the main sequence have in common? How does the 6me spent on the main sequence depend on mass? 3) What are the evolu6onary stages of stars of high-‐ and low-‐mass stars ...
... 2) What do all stars on the main sequence have in common? How does the 6me spent on the main sequence depend on mass? 3) What are the evolu6onary stages of stars of high-‐ and low-‐mass stars ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.