Homework, August 29, 2002 AST110-6
... 1. If nuclear fusion of hydrogen in the core of the Sun were to stop now, what would we see on the surface of the Sun tomorrow? Why? Will we be able to tell that hydrogen burning in the core has stopped? How? (20pt) (Hint: What particles that are generated by the fusion of hydrogen can escape from t ...
... 1. If nuclear fusion of hydrogen in the core of the Sun were to stop now, what would we see on the surface of the Sun tomorrow? Why? Will we be able to tell that hydrogen burning in the core has stopped? How? (20pt) (Hint: What particles that are generated by the fusion of hydrogen can escape from t ...
Solving the Mystery of Massive Star Birth
... they begin to heat up, growing hotter and hotter, until eventually they begin “burning” at their core. When the temperature at the core reaches a scorching 10 million degrees, the clump officially becomes a new star. We know this is how small and medium-sized stars form, but what about the most massiv ...
... they begin to heat up, growing hotter and hotter, until eventually they begin “burning” at their core. When the temperature at the core reaches a scorching 10 million degrees, the clump officially becomes a new star. We know this is how small and medium-sized stars form, but what about the most massiv ...
Compare the following sets of stars using the words: BRIGHTER or
... Sun-like Star -> red giant -> planetary nebula -> white dwarf ...
... Sun-like Star -> red giant -> planetary nebula -> white dwarf ...
STARS- hot glowing sphere of gas that produces energy by
... STAR- hot glowing sphere of gas that produces energy by fusion 1] Light year—distance light travels in a year (9.5 trillion km, 6 trillion miles) 2] Star brightness A) Actual brightness- brightness right next to a star B) Apparent brightness—brightness as seen from earth 3] Formation of stars A) Neb ...
... STAR- hot glowing sphere of gas that produces energy by fusion 1] Light year—distance light travels in a year (9.5 trillion km, 6 trillion miles) 2] Star brightness A) Actual brightness- brightness right next to a star B) Apparent brightness—brightness as seen from earth 3] Formation of stars A) Neb ...
molecular clouds
... • Hydrogen and helium are the predominant components of the ISM, but it is enriched with heavier elements from earlier stars (created in stellar fusion and supernova explosions). ...
... • Hydrogen and helium are the predominant components of the ISM, but it is enriched with heavier elements from earlier stars (created in stellar fusion and supernova explosions). ...
Diapositiva 1
... Explanation: Two famous New York City icons stand tall in the above photo. On the left looms the Statue of Liberty, a universal symbol of freedom, while on the right rises the Empire State Building, now the second largest building in the city. What's unique about this once-in-a-lifetime photograph, ...
... Explanation: Two famous New York City icons stand tall in the above photo. On the left looms the Statue of Liberty, a universal symbol of freedom, while on the right rises the Empire State Building, now the second largest building in the city. What's unique about this once-in-a-lifetime photograph, ...
Galaxy Far Far Away ppt
... By looking at the radial velocities of surrounding stars, we can estimate the Sun’s velocity to be about 220 km/s. It takes about 240 million years for the Sun to orbit the center of the galaxy! ...
... By looking at the radial velocities of surrounding stars, we can estimate the Sun’s velocity to be about 220 km/s. It takes about 240 million years for the Sun to orbit the center of the galaxy! ...
homework assignment 3
... Due Monday, April 22, 2013 at 5 p.m., either electronically or on paper. 1. Most astronomy textbooks use planets orbiting the Sun to illustrate the relevance of Kepler’s third law of planetary motion. In a class on stars and galaxies, describe a more relevant example of Kepler’s third law (i.e., whe ...
... Due Monday, April 22, 2013 at 5 p.m., either electronically or on paper. 1. Most astronomy textbooks use planets orbiting the Sun to illustrate the relevance of Kepler’s third law of planetary motion. In a class on stars and galaxies, describe a more relevant example of Kepler’s third law (i.e., whe ...
galaxies
... • has about 200 billion stars, and lots of gas and dust • is a barred-spiral (we think) • about 100,000 light-years wide • our Sun is halfway to the edge, revolving at half a million miles per hour around the center of the Galaxy • takes our Solar System about 200 million years to revolve once aroun ...
... • has about 200 billion stars, and lots of gas and dust • is a barred-spiral (we think) • about 100,000 light-years wide • our Sun is halfway to the edge, revolving at half a million miles per hour around the center of the Galaxy • takes our Solar System about 200 million years to revolve once aroun ...
Document
... USING KEY TERMS The statements below are false. For each statement, replace the underlined term to make a true statement. ...
... USING KEY TERMS The statements below are false. For each statement, replace the underlined term to make a true statement. ...
~Crowfoot
... 1)2 This nebula in Lyra Ring Nebula a) shows how stars form. b) shows the likely fate of Sol. c) is a supernova remnant. 2)2 The blue color of this nebula near the winter solstice Trifid Nebula a) arises from the Balmer γ transition. b) is due to preferential scattering of blue light as in Earth’s s ...
... 1)2 This nebula in Lyra Ring Nebula a) shows how stars form. b) shows the likely fate of Sol. c) is a supernova remnant. 2)2 The blue color of this nebula near the winter solstice Trifid Nebula a) arises from the Balmer γ transition. b) is due to preferential scattering of blue light as in Earth’s s ...
astrophysics 2009
... -the pair of diagrams below might help to show this. -they each show the same constellation pattern of stars. -however, if you cross your eyes and allow one image to merge with the other (this is a stereogram a bit like Magic Eye), it can be seen that one of the stars is further away than the other ...
... -the pair of diagrams below might help to show this. -they each show the same constellation pattern of stars. -however, if you cross your eyes and allow one image to merge with the other (this is a stereogram a bit like Magic Eye), it can be seen that one of the stars is further away than the other ...
KEY Unit 10‐11 Test Review: Characteristics of the Universe
... from Earth faster than galaxies that are nearby. 10. Betelgeuse is one of the brightest stars in the night sky even though it is 640 LY from Earth. Barnard‛s Star, on the other hand, is relatively close but is not visible to the unaided eye. This can be explained due to a DIFFERENCE in … ...
... from Earth faster than galaxies that are nearby. 10. Betelgeuse is one of the brightest stars in the night sky even though it is 640 LY from Earth. Barnard‛s Star, on the other hand, is relatively close but is not visible to the unaided eye. This can be explained due to a DIFFERENCE in … ...
General Astrophysical Concepts: Astronomical length scales
... different bulge-to-disk ratios C. Irregular galaxies are a sub-class of disk galaxies D. An SBd galaxy’s spiral arms are more tightly wound (i.e. more closed) than an Sab galaxy’s spiral arms ...
... different bulge-to-disk ratios C. Irregular galaxies are a sub-class of disk galaxies D. An SBd galaxy’s spiral arms are more tightly wound (i.e. more closed) than an Sab galaxy’s spiral arms ...
Groups_of_Stars_spectra
... from Sun to Earth (93 million miles) • Light Year (ly): distance light travels in one year (~9.5 trillion km, or 5.9 trillion mi) • Parsec (pc): it is equal to 3.26 ly ...
... from Sun to Earth (93 million miles) • Light Year (ly): distance light travels in one year (~9.5 trillion km, or 5.9 trillion mi) • Parsec (pc): it is equal to 3.26 ly ...
22 pm - Starmap
... The objects listed on the first page can be observed with naked eyes, in clear skies, with moderate light pollution. Close your eyes one minute and let them adapt to darkness. You will be surprised how many more details will be apparent. Using binoculars, preferably with a tripod, will considerably ...
... The objects listed on the first page can be observed with naked eyes, in clear skies, with moderate light pollution. Close your eyes one minute and let them adapt to darkness. You will be surprised how many more details will be apparent. Using binoculars, preferably with a tripod, will considerably ...
Supernovae - Cloudfront.net
... binary system die the results can be explosive The more massive star will die first Its death will not be unlike the Sun’s though the other star will affect the form of the planetary nebula. Producing nebulae like the When the second becomes a red Rose Nebula giant it will trigger a type 1a super no ...
... binary system die the results can be explosive The more massive star will die first Its death will not be unlike the Sun’s though the other star will affect the form of the planetary nebula. Producing nebulae like the When the second becomes a red Rose Nebula giant it will trigger a type 1a super no ...
Galaxies - C. Levesque
... this creates a black hole • A black hole is an object so dense that not even light can escape it. • We can find black holes by looking for objects in space ...
... this creates a black hole • A black hole is an object so dense that not even light can escape it. • We can find black holes by looking for objects in space ...
Astronomy – The Milky Way Galaxy
... – Proven by observing a faint glow of __________________ that is a remnant of _________ from the Big Bang. – Early Universe = __________ and ____________ – Today’s Universe = __________ and ________ ___________ because of ...
... – Proven by observing a faint glow of __________________ that is a remnant of _________ from the Big Bang. – Early Universe = __________ and ____________ – Today’s Universe = __________ and ________ ___________ because of ...
Life Cycle of Stars
... • Once the gas and dust blow away, the star can be seen • All stars (low and high mass) start out here ...
... • Once the gas and dust blow away, the star can be seen • All stars (low and high mass) start out here ...
Astronomy Chapter 13 Name
... D. A type of binary star in which the spectrum lines exhibit a changing Doppler shift as a result of the orbital motion of one star around the other ...
... D. A type of binary star in which the spectrum lines exhibit a changing Doppler shift as a result of the orbital motion of one star around the other ...
20 pm - Starmap
... As a starting point, face North, holding the map in your eyesight direction, with its North down. As you change the direction, rotate the map accordingly. The objects listed on the first page can be observed with naked eyes, in clear skies, with moderate light pollution. Close your eyes one minute a ...
... As a starting point, face North, holding the map in your eyesight direction, with its North down. As you change the direction, rotate the map accordingly. The objects listed on the first page can be observed with naked eyes, in clear skies, with moderate light pollution. Close your eyes one minute a ...
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.