Volcanoes and Igneous Activity Earth
... • Stars with masses similar to the sun evolve in essentially the same way as low-mass stars. • During their collapse from red giants to white dwarfs, medium-mass stars are thought to cast off their bloated outer layer, creating an expanding round cloud of gas called planetary nebula. ...
... • Stars with masses similar to the sun evolve in essentially the same way as low-mass stars. • During their collapse from red giants to white dwarfs, medium-mass stars are thought to cast off their bloated outer layer, creating an expanding round cloud of gas called planetary nebula. ...
Galaxies – Island universes
... • Now we have our final rung in the Distance Ladder: Solve for D and get D=V/H ...
... • Now we have our final rung in the Distance Ladder: Solve for D and get D=V/H ...
Note Taking Guide #2: Characteristics of Stars Welcome back! As
... A star’s apparent magnitude is how much light a star appears to give off when viewed from Earth. The closer a star is to Erath, the more light it appears to give off. Think of our sun versus Alpha Centauri; the sun appears to give off much more light, even though the two stars are actually very simi ...
... A star’s apparent magnitude is how much light a star appears to give off when viewed from Earth. The closer a star is to Erath, the more light it appears to give off. Think of our sun versus Alpha Centauri; the sun appears to give off much more light, even though the two stars are actually very simi ...
Lesson #5: Constellations - Center for Learning in Action
... Ask the students what they know about stars. Try to lead them towards the definition: Stars are massive shining spheres of hot gas. The stars you can see with your naked eye in the night sky are part of the Milky Way Galaxy, a huge system of stars that contains our solar system. Use pictures or over ...
... Ask the students what they know about stars. Try to lead them towards the definition: Stars are massive shining spheres of hot gas. The stars you can see with your naked eye in the night sky are part of the Milky Way Galaxy, a huge system of stars that contains our solar system. Use pictures or over ...
Stars Chapter 21
... Star Clusters:Large Groupings of Stars Open Cluster • Loose and disorganized appearance • Contain 100- 1000 stars • young stars ...
... Star Clusters:Large Groupings of Stars Open Cluster • Loose and disorganized appearance • Contain 100- 1000 stars • young stars ...
1 - Stellar Life Cycle
... Supernovae occur when a massive star ends its life in an amazing blaze of glory. For a few days a supernova emits as much energy as a whole galaxy. When it's all over, a large fraction of the star is blown into space as a supernova remnant. A typical supernova remnant is at most few light-years acro ...
... Supernovae occur when a massive star ends its life in an amazing blaze of glory. For a few days a supernova emits as much energy as a whole galaxy. When it's all over, a large fraction of the star is blown into space as a supernova remnant. A typical supernova remnant is at most few light-years acro ...
Star Formation
... 10 million Kelvin needed to start fusion in a million years (1/50 time taken by sun) • An M-type star less massive than our sun takes one billion years to form ...
... 10 million Kelvin needed to start fusion in a million years (1/50 time taken by sun) • An M-type star less massive than our sun takes one billion years to form ...
Other Galaxies, their Distances, and the Expansion of the Universe
... These are images obtained by my team with the Spitzer Space Telescope ...
... These are images obtained by my team with the Spitzer Space Telescope ...
Star Jeopardy "Review #1
... Type G2 star, middle of HR diagram-average size and luminosity, end of life will be white dwarf, only known star to support a planet with life. Why is our star (the sun) frequently referred to as an “average” star? Compare the important physical characteristics of the Sun with the most common types ...
... Type G2 star, middle of HR diagram-average size and luminosity, end of life will be white dwarf, only known star to support a planet with life. Why is our star (the sun) frequently referred to as an “average” star? Compare the important physical characteristics of the Sun with the most common types ...
Document
... they become red giants. Low and medium mass stars will become white dwarfs. Higher mass stars will begin to produce oxygen, nitrogen and ...
... they become red giants. Low and medium mass stars will become white dwarfs. Higher mass stars will begin to produce oxygen, nitrogen and ...
Astro 1 & 100 Levine Homework Stars Name:____________________________
... You may want to do the lecture-tutorial on pg 33, Apparent and Absolute Magnitude of Stars, prior to doing this portion of the homework, if you need a refresher on m and M. Ranking questions are 2 points each. Consider the following table of stars: ...
... You may want to do the lecture-tutorial on pg 33, Apparent and Absolute Magnitude of Stars, prior to doing this portion of the homework, if you need a refresher on m and M. Ranking questions are 2 points each. Consider the following table of stars: ...
Astronomy Webquest _2 STARS
... compressed ________________________________________ material, and are so dense that their mass is comparable to that of the Sun, even though their size is similar to that of the Earth's. A matchbox of white dwarf material would weigh the same as fifteen elephants. Newly created white dwarfs have som ...
... compressed ________________________________________ material, and are so dense that their mass is comparable to that of the Sun, even though their size is similar to that of the Earth's. A matchbox of white dwarf material would weigh the same as fifteen elephants. Newly created white dwarfs have som ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... Stars are born in groups or clusters when a cold giant molecular cloud collapses under its own gravitational force. If many stars form all at once—that is, if star formation efficiency is high—they will stay together as a gravitationally bound open cluster (like the Pleiades) or a globular cluster ( ...
... Stars are born in groups or clusters when a cold giant molecular cloud collapses under its own gravitational force. If many stars form all at once—that is, if star formation efficiency is high—they will stay together as a gravitationally bound open cluster (like the Pleiades) or a globular cluster ( ...
Document
... 1 parsec = 3.26 light years. Also d = 1/p Closest star, Proxima centauri, p = 0.772 arc seconds. Hence distance ‘d’ in parsec is d = 1/p = 1/0.772 = 1.3 parsec = 4.2 light years ...
... 1 parsec = 3.26 light years. Also d = 1/p Closest star, Proxima centauri, p = 0.772 arc seconds. Hence distance ‘d’ in parsec is d = 1/p = 1/0.772 = 1.3 parsec = 4.2 light years ...
Astronomy Jeopardy Astronomy jeopardy
... When there is equilibrium between the stellar fusion pushing out and the gravity pulling in the star is called… (Hint: our sun is this type of star) ...
... When there is equilibrium between the stellar fusion pushing out and the gravity pulling in the star is called… (Hint: our sun is this type of star) ...
Astrophysics Presentation
... stars, astrophysicists found that there were other indicators of temperature ...
... stars, astrophysicists found that there were other indicators of temperature ...
Document
... b. produced by a supernova explosion. c. produced by a nova explosion. d. a nebula within which planets are forming. e. a cloud of hot gas surrounding a planet. 22. Massive stars cannot generate energy through iron fusion because a. iron fusion requires very high density. b. stars contain very littl ...
... b. produced by a supernova explosion. c. produced by a nova explosion. d. a nebula within which planets are forming. e. a cloud of hot gas surrounding a planet. 22. Massive stars cannot generate energy through iron fusion because a. iron fusion requires very high density. b. stars contain very littl ...
Birth and Death of Stars
... • Apparent magnitude is the brightness of a star as it appears from Earth. This depends on the amount of light emitted by the star and how close it is to the Earth. The lower the number the greater the apparent magnitude. • Absolute magnitude is how bright the star would be if all stars were the sam ...
... • Apparent magnitude is the brightness of a star as it appears from Earth. This depends on the amount of light emitted by the star and how close it is to the Earth. The lower the number the greater the apparent magnitude. • Absolute magnitude is how bright the star would be if all stars were the sam ...
Apparent Magnitude
... Why do stars in the night sky appear considerably different in brightness? The distances to stars are not all the same. ...
... Why do stars in the night sky appear considerably different in brightness? The distances to stars are not all the same. ...
Chapter 19 Notes Stars Stars are bright balls of gas that are trillions
... b. The color of stars indicate their temperature i. Red and yellow are cool stars, like our sun ii. Blue and white are hot stars. c. Astronomers use an instrument called a spectrograph to break a star’s light into a spectrum i. Spectrum- a band of colors produced when white light passes through a pr ...
... b. The color of stars indicate their temperature i. Red and yellow are cool stars, like our sun ii. Blue and white are hot stars. c. Astronomers use an instrument called a spectrograph to break a star’s light into a spectrum i. Spectrum- a band of colors produced when white light passes through a pr ...
The Family of Stars
... that a star would have if it were at a distance of 10 pc. If we know a star’s absolute magnitude, we can infer its distance by comparing absolute and apparent magnitudes. ...
... that a star would have if it were at a distance of 10 pc. If we know a star’s absolute magnitude, we can infer its distance by comparing absolute and apparent magnitudes. ...
Characteristics of Stars
... diagram below). This is the same thing that happens when you look at a close object with first one eye and then the other. For example, hold your thumb at the tip of your nose. Look at your thumb with first your right eye and then your left. Your thumb appears to move because your eyes are not at ex ...
... diagram below). This is the same thing that happens when you look at a close object with first one eye and then the other. For example, hold your thumb at the tip of your nose. Look at your thumb with first your right eye and then your left. Your thumb appears to move because your eyes are not at ex ...
Morning Announcements
... how bright it appears at its true location. Betelgeuse has an absolute magnitude (M) of –5.5, which tells us how 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 ...
... how bright it appears at its true location. Betelgeuse has an absolute magnitude (M) of –5.5, which tells us how 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 ...
Stellar Evolution
... to counteract the force of gravity, the outer layers of the star begin to collapse inward. Just as during formation, when the material contracts, the temperature and pressure increase. This newly generated heat temporarily counteracts the force of gravity, and the outer layers of the star are now pu ...
... to counteract the force of gravity, the outer layers of the star begin to collapse inward. Just as during formation, when the material contracts, the temperature and pressure increase. This newly generated heat temporarily counteracts the force of gravity, and the outer layers of the star are now pu ...
Serpens
Serpens (""the Serpent"", Greek Ὄφις) is a constellation of the northern hemisphere. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations defined by the International Astronomical Union. It is unique among the modern constellations in being split into two non-contiguous parts, Serpens Caput (Serpent's Head) to the west and Serpens Cauda (Serpent's Tail) to the east. Between these two halves lies the constellation of Ophiuchus, the ""Serpent-Bearer"". In figurative representations, the body of the serpent is represented as passing behind Ophiuchus between Mu Serpentis in Serpens Caput and Nu Serpentis in Serpens Cauda.The brightest star in Serpens is the red giant star Alpha Serpentis, or Unukalhai, in Serpens Caput, with an apparent magnitude of 2.63. Also located in Serpens Caput are the naked-eye globular cluster Messier 5 and the naked-eye variables R Serpentis and Tau4 Serpentis. Notable extragalactic objects include Seyfert's Sextet, one of the densest galaxy clusters known; Arp 220, the prototypical ultraluminous infrared galaxy; and Hoag's Object, the most famous of the very rare class of galaxies known as ring galaxies.Part of the Milky Way's galactic plane passes through Serpens Cauda, which is therefore rich in galactic deep-sky objects, such as the Eagle Nebula (IC 4703) and its associated star cluster Messier 16. The nebula measures 70 light-years by 50 light-years and contains the Pillars of Creation, three dust clouds that became famous for the image taken by the Hubble Space Telescope. Other striking objects include the Red Square Nebula, one of the few objects in astronomy to take on a square shape; and Westerhout 40, a massive nearby star-forming region consisting of a molecular cloud and an H II region.