Stars
... • Many First Nations groups noted that that the appearance of certain patterns marked the changing of the seasons. • Ancient Egyptian farmers noticed that the annual flooding of the Nile River, used for crop irrigation would occur every 365 days when the Sun passed through the constellation Leo. • O ...
... • Many First Nations groups noted that that the appearance of certain patterns marked the changing of the seasons. • Ancient Egyptian farmers noticed that the annual flooding of the Nile River, used for crop irrigation would occur every 365 days when the Sun passed through the constellation Leo. • O ...
Presentation available here - Lunar and Planetary Institute
... All core collapse explosions are asymmetric, maybe produced by magnetic jets. How can this be proved? Gamma-ray bursts are caused by jets of material moving at nearly the speed of light. Do they mark the birth of black holes? At least some gamma-ray bursts (and maybe all) arise in supernova ex ...
... All core collapse explosions are asymmetric, maybe produced by magnetic jets. How can this be proved? Gamma-ray bursts are caused by jets of material moving at nearly the speed of light. Do they mark the birth of black holes? At least some gamma-ray bursts (and maybe all) arise in supernova ex ...
Stars: flux, luminosity, color, and temperature
... • The brightness of a star is a measure of its flux. • Ptolemy (150 A.D.) grouped stars into 6 `magnitude’ groups according to how bright they looked to his eye. • Herschel (1800s) first measured the brightness of stars quantitatively and matched his measurements onto Ptolemy’s magnitude groups and ...
... • The brightness of a star is a measure of its flux. • Ptolemy (150 A.D.) grouped stars into 6 `magnitude’ groups according to how bright they looked to his eye. • Herschel (1800s) first measured the brightness of stars quantitatively and matched his measurements onto Ptolemy’s magnitude groups and ...
MS Word version
... Question 4: The two end stars of the Big Dipper are known as the “pointer stars” since a line drawn through them points toward Polaris (a very important marker in the sky since it is located very near the NCP). Use the constellations control to add the Big Dipper to the celestial sphere. Now manipul ...
... Question 4: The two end stars of the Big Dipper are known as the “pointer stars” since a line drawn through them points toward Polaris (a very important marker in the sky since it is located very near the NCP). Use the constellations control to add the Big Dipper to the celestial sphere. Now manipul ...
Station A Star Charts I
... Answer the questions on your answer sheet. Use scratch paper for your work—DO NOT WRITE ON THE TEST. If you need more paper, raise your hand and one of the volunteers (quickly!) will bring some. The point values for each question are given in parentheses after the ...
... Answer the questions on your answer sheet. Use scratch paper for your work—DO NOT WRITE ON THE TEST. If you need more paper, raise your hand and one of the volunteers (quickly!) will bring some. The point values for each question are given in parentheses after the ...
Ch. 20
... The Hyades cluster, shown here, is also rather young; its main-sequence turnoff indicates an age of about 600 million years. ...
... The Hyades cluster, shown here, is also rather young; its main-sequence turnoff indicates an age of about 600 million years. ...
Sirius - Springer
... ▶ Explains how studies of the star Sirius have played a pivotal role in achieving our current understanding of the nature and fate of stars ▶ Demonstrates the importance of Sirius to many civilisations and cultures over thousands of years ▶ Provides an intriguing, in-depth treatment of longstanding ...
... ▶ Explains how studies of the star Sirius have played a pivotal role in achieving our current understanding of the nature and fate of stars ▶ Demonstrates the importance of Sirius to many civilisations and cultures over thousands of years ▶ Provides an intriguing, in-depth treatment of longstanding ...
star
... Life Cycle of a Star (cont.) • When a star’s hydrogen supply is nearly gone, the star leaves the main sequence and begins the next stage of its life cycle. • All stars form in the same way, but stars die in different ways, depending on their masses. • Massive stars eventually become red ...
... Life Cycle of a Star (cont.) • When a star’s hydrogen supply is nearly gone, the star leaves the main sequence and begins the next stage of its life cycle. • All stars form in the same way, but stars die in different ways, depending on their masses. • Massive stars eventually become red ...
MS Word version
... Question 5: The two end stars of the Big Dipper are known as the “pointer stars” since a line drawn through them points toward Polaris (a very important marker in the sky since it is located very near the NCP). Use the constellations control to add the Big Dipper to the celestial sphere. Now manipul ...
... Question 5: The two end stars of the Big Dipper are known as the “pointer stars” since a line drawn through them points toward Polaris (a very important marker in the sky since it is located very near the NCP). Use the constellations control to add the Big Dipper to the celestial sphere. Now manipul ...
Crux The Southern Cross
... There are many stars in the sky that when viewed through a telescope appear as two dots. It is common for two stars to be locked together gravitationally to form a binary star system. Sometimes double stars may only appear close together from our vantage point on earth. If in reality they do not int ...
... There are many stars in the sky that when viewed through a telescope appear as two dots. It is common for two stars to be locked together gravitationally to form a binary star system. Sometimes double stars may only appear close together from our vantage point on earth. If in reality they do not int ...
How Bright is that star?
... Luminosity is the amount of energy a star gives off as light. Measured in Watts or Solar Units or “Sols” However for all practical purposes Absolute magnitude and Luminosity of a star measure the same thing. Absolute Magnitude Approximate Luminosity ...
... Luminosity is the amount of energy a star gives off as light. Measured in Watts or Solar Units or “Sols” However for all practical purposes Absolute magnitude and Luminosity of a star measure the same thing. Absolute Magnitude Approximate Luminosity ...
Week 2
... A. The star will reach its highest point in 3 hours. B. The star reached its highest point 3 hours ago. C. It isn’t possible to tell using the information ...
... A. The star will reach its highest point in 3 hours. B. The star reached its highest point 3 hours ago. C. It isn’t possible to tell using the information ...
RED GIANTS
... When core hydrogen fusion ceases, a main-sequence star becomes a giant • The star can no longer support its weight • The enormous weight from the outer layers compresses hydrogen in the layers just outside the core enough to initiate shell hydrogen fusion. • This extra internal heat causes the oute ...
... When core hydrogen fusion ceases, a main-sequence star becomes a giant • The star can no longer support its weight • The enormous weight from the outer layers compresses hydrogen in the layers just outside the core enough to initiate shell hydrogen fusion. • This extra internal heat causes the oute ...
http://webcache.googleusercontent.com/search?q=cache
... aspect, the native is reduced to being a door-keeper, admitting and saluting guests. [2] Ptolemy attributes a mercurial-saturnine nature to the constellation as a whole, but notes the principal star Arcturus (from Arktouros 'Bear Guard': arktos, bear + ouros, guard - from its position behind Ursa Ma ...
... aspect, the native is reduced to being a door-keeper, admitting and saluting guests. [2] Ptolemy attributes a mercurial-saturnine nature to the constellation as a whole, but notes the principal star Arcturus (from Arktouros 'Bear Guard': arktos, bear + ouros, guard - from its position behind Ursa Ma ...
Question Paper - SAVE MY EXAMS!
... A If the Universe is open then it will continue to expand forever. B If the Universe is open then it will eventually reach a maximum size. C If the Universe is closed then it will eventually reach a maximum size. D If the Universe is closed then it will reach a maximum size and then contract. (Total ...
... A If the Universe is open then it will continue to expand forever. B If the Universe is open then it will eventually reach a maximum size. C If the Universe is closed then it will eventually reach a maximum size. D If the Universe is closed then it will reach a maximum size and then contract. (Total ...
Investigate Stars and Galaxies - American Museum of Natural History
... Have students watch the Science Bulletins video “Brown Dwarfs: Tail End of the Stars” (sciencebulletins.amnh.org/ ?sid=a.f.brown_dwarfs.20110606) to learn what happens when there isn’t quite enough mass to make a low-mass star. Allow students to take notes during the video. Then ask the following qu ...
... Have students watch the Science Bulletins video “Brown Dwarfs: Tail End of the Stars” (sciencebulletins.amnh.org/ ?sid=a.f.brown_dwarfs.20110606) to learn what happens when there isn’t quite enough mass to make a low-mass star. Allow students to take notes during the video. Then ask the following qu ...
WARM-UP # 32 Which planets are the terrestrial planets and which
... which planets are the gas planets? What are three of their primary differences? The terrestrial planets are made of rock, smaller, closer together, do not have rings, and are closer to the sun. ...
... which planets are the gas planets? What are three of their primary differences? The terrestrial planets are made of rock, smaller, closer together, do not have rings, and are closer to the sun. ...
Stellar Evolution
... Observing Stellar Evolution in Star Clusters The following series of H–R diagrams shows how stars of the same age, but different masses, appear as the cluster as a whole ages. After 10 million years, the most massive stars have already left the main sequence, while many of the least massive have no ...
... Observing Stellar Evolution in Star Clusters The following series of H–R diagrams shows how stars of the same age, but different masses, appear as the cluster as a whole ages. After 10 million years, the most massive stars have already left the main sequence, while many of the least massive have no ...
Navigating the Night Sky – Teacher Guide Argos Online Subject
... • Identify limitations of the map: o Do the constellations near the horizon on the star map look like the constellations in the sky? If not, how do they look different? -If you are using the star maps in Stardate Magazine, the answer is obviously No. If you are using the star maps from Starmaps.com, ...
... • Identify limitations of the map: o Do the constellations near the horizon on the star map look like the constellations in the sky? If not, how do they look different? -If you are using the star maps in Stardate Magazine, the answer is obviously No. If you are using the star maps from Starmaps.com, ...
Citizen Sky Epsilon Aurigae Script for Fulldome Planetariums
... disk form? How long will it stick around? And how does it remain intact? Our own solar system may have formed from a disk similar to this. What can Epsilon Aurigae teach us about our own origins? To answer our questions, we need more observations. From a distance, we cannot see the details of the Ep ...
... disk form? How long will it stick around? And how does it remain intact? Our own solar system may have formed from a disk similar to this. What can Epsilon Aurigae teach us about our own origins? To answer our questions, we need more observations. From a distance, we cannot see the details of the Ep ...
Star of Bethlehem
In Christian tradition, the Star of Bethlehem, also called the Christmas Star, revealed the birth of Jesus to the Biblical Magi, and later led them to Bethlehem. The star appears only in the nativity story of the Gospel of Matthew, where astrologers from the east are inspired by the star to travel to Jerusalem. There they meet King Herod of Judea, and ask where the king of the Jews had been born. Herod, following a verse from the Book of Micah interpreted as a prophecy, directs them to Bethlehem, to the south of Jerusalem. The star leads them to Jesus' home in the town, where they worship him and give him gifts. The wise men are then given a divine warning not to return to Herod so they return home by a different route.Many Christians see the star as a miraculous sign to mark the birth of the Christ (or messiah). Some theologians claimed that the star fulfilled a prophecy, known as the Star Prophecy. Astronomers have made several attempts to link the star to unusual astronomical events, such as a conjunction of Jupiter and Saturn, a comet or a supernova.Many modern scholars do not consider the story to be describing a historical event but a pious fiction created by the author of the Gospel of Matthew.The subject is a favorite at planetarium shows during the Christmas season, although the Biblical account describes Jesus with a broader Greek word, which can mean either ""infant"" or ""child"" (paidon), rather than the more specific word for infant (brephos), possibly implying that some time has passed since the birth. The visit is traditionally celebrated on Epiphany (January 6) in Western Christianity.