The Edge of the Solar System The Oort Cloud
... 12 comets per year leave Oort Cloud to become long-range comets o Pushed out by large molecular clouds, passing stars, or tidal interactions with Milky Way's disc o 5 of these enter inner solar system per year o It takes thousands of years for them to orbit the sun ...
... 12 comets per year leave Oort Cloud to become long-range comets o Pushed out by large molecular clouds, passing stars, or tidal interactions with Milky Way's disc o 5 of these enter inner solar system per year o It takes thousands of years for them to orbit the sun ...
The Oort Cloud
... sun (Kuiper belt ends at 55 AU) • Proxima Centauri is 270,000 AU from sun • Contains between 0.1 and 2 trillion comets • Distance between Oort Cloud Comets: 50-500 million km (0.33-3.33 AU) • Surface temp. in Oort Cloud ~5-6 K (Kuiper belt 30-60 K) • Named after Jan Oort ...
... sun (Kuiper belt ends at 55 AU) • Proxima Centauri is 270,000 AU from sun • Contains between 0.1 and 2 trillion comets • Distance between Oort Cloud Comets: 50-500 million km (0.33-3.33 AU) • Surface temp. in Oort Cloud ~5-6 K (Kuiper belt 30-60 K) • Named after Jan Oort ...
Name:
... suitable objects for viewing with small telescopes or binoculars. Turn your star map to the SW and face that direction. Which planet is now heading down at map time? 23)______________, the king of the planets. Note the dashed line running from this planet’s location eastward across the sky. This is ...
... suitable objects for viewing with small telescopes or binoculars. Turn your star map to the SW and face that direction. Which planet is now heading down at map time? 23)______________, the king of the planets. Note the dashed line running from this planet’s location eastward across the sky. This is ...
Winter Stargazing - Trimble County Schools
... • Look toward the Southwest in the late evening hours, and when you spot Orion, find his shoulders: Bellatrix, his western shoulder, and Betelgeuse, his eastern shoulder. • Make an imaginary line between the two stars from Bellatrix to Betelgeuse, and extend it outward toward the East. • About three ...
... • Look toward the Southwest in the late evening hours, and when you spot Orion, find his shoulders: Bellatrix, his western shoulder, and Betelgeuse, his eastern shoulder. • Make an imaginary line between the two stars from Bellatrix to Betelgeuse, and extend it outward toward the East. • About three ...
updated
... envelope) will disperse into the ISM leaving behind only the hot stellar core. For low mass stars (mass less than about 4 solar masses), the remaining core mass in insufficient to generate a temperature high enough to ignite carbon fusion. Hence this core will never be able to fuse carbon and it wil ...
... envelope) will disperse into the ISM leaving behind only the hot stellar core. For low mass stars (mass less than about 4 solar masses), the remaining core mass in insufficient to generate a temperature high enough to ignite carbon fusion. Hence this core will never be able to fuse carbon and it wil ...
DTU_9e_ch13
... (a) A typical evolutionary track on the H-R diagram as a star makes the transition from the main sequence to the giant phase. The asterisk (*) shows the helium flash occurring in a low-mass star. (b) After the helium flash, the star converts its helium core into carbon and oxygen. While doing so, it ...
... (a) A typical evolutionary track on the H-R diagram as a star makes the transition from the main sequence to the giant phase. The asterisk (*) shows the helium flash occurring in a low-mass star. (b) After the helium flash, the star converts its helium core into carbon and oxygen. While doing so, it ...
Hertzsprung-Russell Diagram
... the inverse-square law would give us its distance from Earth. For a star, the trick is to find an independent measure of the luminosity without knowing the distance. The H—R diagram can provide just that. ...
... the inverse-square law would give us its distance from Earth. For a star, the trick is to find an independent measure of the luminosity without knowing the distance. The H—R diagram can provide just that. ...
Star luminosity info and HR diagram
... from us, from several light-years to over 1,000 lightyears. Telescopes show the light of stars millions or billions of light-years away. Today, when we talk about a star’s brightness, we might mean one of two things: its intrinsic brightness or its apparent brightness. When astronomers speak of the ...
... from us, from several light-years to over 1,000 lightyears. Telescopes show the light of stars millions or billions of light-years away. Today, when we talk about a star’s brightness, we might mean one of two things: its intrinsic brightness or its apparent brightness. When astronomers speak of the ...
answers
... A) The circle of light will spread out more, and more area means less concentration of light. This can also be demonstrated with a circle drawn on small balloon and then inflated further. c) You have two flashlights, with different luminosities. How can you make them appear equally bright? The brigh ...
... A) The circle of light will spread out more, and more area means less concentration of light. This can also be demonstrated with a circle drawn on small balloon and then inflated further. c) You have two flashlights, with different luminosities. How can you make them appear equally bright? The brigh ...
Stellar Evolution Review
... c) they only emit infrared radiation d) they are all moving away from Earth so fast that their visible light is Doppler shifted into the infrared ...
... c) they only emit infrared radiation d) they are all moving away from Earth so fast that their visible light is Doppler shifted into the infrared ...
Constellations
... • January 13, 2005, was a special date for Saturn because that's when it is closest to Earth: only 750 million miles away, compared to a maximum distance of almost a billion miles. • This makes Saturn unusually big and bright. ...
... • January 13, 2005, was a special date for Saturn because that's when it is closest to Earth: only 750 million miles away, compared to a maximum distance of almost a billion miles. • This makes Saturn unusually big and bright. ...
blackbody
... 2) In the Applet, the closest temperature to 3391 K you can input is about 3364 K. The peak of the curve does indeed occur at about 900 nm which is in the infrared part of the spectrum (meaning wavelengths longer than the red light). Note the color of the star has a dusky reddish/brown appearance. Y ...
... 2) In the Applet, the closest temperature to 3391 K you can input is about 3364 K. The peak of the curve does indeed occur at about 900 nm which is in the infrared part of the spectrum (meaning wavelengths longer than the red light). Note the color of the star has a dusky reddish/brown appearance. Y ...
Physics 161 Homework 8 - Solutions Wednesday
... 907 kg (or about 1000 kg, or so), then the key would have a weight of about a billion tons! This seems excessive, even for Superman to lift, but let’s suppose that he could... Now, once again, the neutron star is composed of neutrons held together by gravitational pressure, supported by neutron dege ...
... 907 kg (or about 1000 kg, or so), then the key would have a weight of about a billion tons! This seems excessive, even for Superman to lift, but let’s suppose that he could... Now, once again, the neutron star is composed of neutrons held together by gravitational pressure, supported by neutron dege ...
The Northern sky - Visit Isle of Man
... Andromeda Galaxy (M31) The Andromeda Galaxy, also known as M31 is difficult to spot with the naked eye, but well worth trying trying to see. This tiny smudge of light, between the constellations Cassiopeia and Pegasus is one of the most spectacular sights in Manx Skies, At 2.2 billion light years aw ...
... Andromeda Galaxy (M31) The Andromeda Galaxy, also known as M31 is difficult to spot with the naked eye, but well worth trying trying to see. This tiny smudge of light, between the constellations Cassiopeia and Pegasus is one of the most spectacular sights in Manx Skies, At 2.2 billion light years aw ...
Distance - courses.psu.edu
... 1/10,000 (one ten-thousandth) the Sun's flux. What would be the distance to this star, in AU? 7. Two stars, A and B, are known to be equal in luminosity, but A appears 16 times brighter (as viewed from Earth) than B. Which one is more distant, and how much farther away is it than the other? 8. Tripl ...
... 1/10,000 (one ten-thousandth) the Sun's flux. What would be the distance to this star, in AU? 7. Two stars, A and B, are known to be equal in luminosity, but A appears 16 times brighter (as viewed from Earth) than B. Which one is more distant, and how much farther away is it than the other? 8. Tripl ...
Extension worksheet – Topic 6 - Cambridge Resources for the IB
... Mark scheme for Extension Worksheet – Option E, Worksheet 1 ...
... Mark scheme for Extension Worksheet – Option E, Worksheet 1 ...
Foundation 1 - Discovering Astronomy
... When core hydrogen fusion ceases, a main-sequence star becomes a giant • When hydrogen fusion ceases in the core, the star will collapse inward – this causes the layer just outside the core to become so hot and dense that hydrogen fusion will begin in this outer layer. • The energy produced by hydr ...
... When core hydrogen fusion ceases, a main-sequence star becomes a giant • When hydrogen fusion ceases in the core, the star will collapse inward – this causes the layer just outside the core to become so hot and dense that hydrogen fusion will begin in this outer layer. • The energy produced by hydr ...
Chapter11
... understand the life stories of the stars in this chapter and those that follow. In this chapter, we use the laws of physics in a new way. We develop theories and models based on physics that help us understand how stars work. For instance, what stops a contracting star and gives it stability? We can ...
... understand the life stories of the stars in this chapter and those that follow. In this chapter, we use the laws of physics in a new way. We develop theories and models based on physics that help us understand how stars work. For instance, what stops a contracting star and gives it stability? We can ...
The Clock of Giza (update)
... In Ancient Egypt, Sirius was called Isis, and Orion was called Osiris. Their son, being the central star in our solar system, was called Horus in Ancient Egypt. The word ‘horizon’ refers to ‘Horus the Rising Sun’, which occurs in the East. In the West, the sun sets, referred to as Seth in Ancient E ...
... In Ancient Egypt, Sirius was called Isis, and Orion was called Osiris. Their son, being the central star in our solar system, was called Horus in Ancient Egypt. The word ‘horizon’ refers to ‘Horus the Rising Sun’, which occurs in the East. In the West, the sun sets, referred to as Seth in Ancient E ...
Types of Galaxies - Spring Branch ISD
... made by telescopes on Earth? Earth’s atmosphere makes objects in space look blurry. The sky on some mountaintops is clearer & is not brightened much by city lights. 16. What does a spectrograph do? Breaks the light from an object into colors & photographs the resulting spectrum 17. What are two kind ...
... made by telescopes on Earth? Earth’s atmosphere makes objects in space look blurry. The sky on some mountaintops is clearer & is not brightened much by city lights. 16. What does a spectrograph do? Breaks the light from an object into colors & photographs the resulting spectrum 17. What are two kind ...
Astronomy Study Guide
... made by telescopes on Earth? Earth’s atmosphere makes objects in space look blurry. The sky on some mountaintops is clearer & is not brightened much by city lights. 16. What does a spectrograph do? Breaks the light from an object into colors & photographs the resulting spectrum 17. What are two kind ...
... made by telescopes on Earth? Earth’s atmosphere makes objects in space look blurry. The sky on some mountaintops is clearer & is not brightened much by city lights. 16. What does a spectrograph do? Breaks the light from an object into colors & photographs the resulting spectrum 17. What are two kind ...
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.