Star Fromation and ISM
... At stage 6, the core reaches 10 million K, and nuclear fusion begins. The protostar has become a star. The star continues to contract and increase in temperature, until it is in equilibrium. This is stage 7: the star has reached the main sequence and will remain there as long as it has hydrogen to f ...
... At stage 6, the core reaches 10 million K, and nuclear fusion begins. The protostar has become a star. The star continues to contract and increase in temperature, until it is in equilibrium. This is stage 7: the star has reached the main sequence and will remain there as long as it has hydrogen to f ...
Events: - Temecula Valley Astronomers
... measured in miles. I try to help my audience understand the distances involved in space. I usually do these small group star parties in the summer. I ask my audience to meet before dusk at our viewing site. The site I like is about 20 miles outside of town. Far enough for reasonably dark skies but c ...
... measured in miles. I try to help my audience understand the distances involved in space. I usually do these small group star parties in the summer. I ask my audience to meet before dusk at our viewing site. The site I like is about 20 miles outside of town. Far enough for reasonably dark skies but c ...
Slide 1
... Red Giant phase with inert He-core and outer H-burning shell; star expands and cools, but is brighter Climbs up the RG branch until He-flash in the core Core expands and cools; H-burning decreases; outer layers contract; luminosity decreases but temperature increases; star moves LEFT on the H-R diag ...
... Red Giant phase with inert He-core and outer H-burning shell; star expands and cools, but is brighter Climbs up the RG branch until He-flash in the core Core expands and cools; H-burning decreases; outer layers contract; luminosity decreases but temperature increases; star moves LEFT on the H-R diag ...
Lecture Note
... • Apparent magnitude is a measure of a star’s apparent brightness as seen from Earth – the magnitude depends on the distance of the star • Absolute magnitude is the apparent magnitude a star would have if it were located exactly 10 parsecs from Earth – This magnitude is independent of the distance – ...
... • Apparent magnitude is a measure of a star’s apparent brightness as seen from Earth – the magnitude depends on the distance of the star • Absolute magnitude is the apparent magnitude a star would have if it were located exactly 10 parsecs from Earth – This magnitude is independent of the distance – ...
Document
... Apparent Magnitude – refers to the brightness of a star as it appears to us. Absolute Magnitude – refers to the actual amount of light given off by a star at a standard distance. ...
... Apparent Magnitude – refers to the brightness of a star as it appears to us. Absolute Magnitude – refers to the actual amount of light given off by a star at a standard distance. ...
Interactive Vocabulary Review for Outer Space Indicator
... All of space and everything in it is the definition of the UNIVERSE! Keep moving! ...
... All of space and everything in it is the definition of the UNIVERSE! Keep moving! ...
Low mass star formation
... overcome the stringent density requirement for Jeans-type collapse Needs sensitive continuum survey of clouds (ideally low Av regions) to find low mass fragments ...
... overcome the stringent density requirement for Jeans-type collapse Needs sensitive continuum survey of clouds (ideally low Av regions) to find low mass fragments ...
Star Search Game: Constructing a Hertzsprung
... Introduction: Star Search is an online game developed by the Victorian Space Science Education Centre (VSSEC) that allows the user to go on a simulated journey into space using a spacecraft in search of various stars. The user is able to scan the star to obtain important characteristics about the st ...
... Introduction: Star Search is an online game developed by the Victorian Space Science Education Centre (VSSEC) that allows the user to go on a simulated journey into space using a spacecraft in search of various stars. The user is able to scan the star to obtain important characteristics about the st ...
17 The Deaths of Stars
... The star now has two parts: 1. A small star that is the extremely dense core of the original star made of helium, carbon, oxygen, or neon depending on the original size of the star. Gravitational contraction quickly forces the material into electron degeneracy. It is called a white dwarf. 2. An enve ...
... The star now has two parts: 1. A small star that is the extremely dense core of the original star made of helium, carbon, oxygen, or neon depending on the original size of the star. Gravitational contraction quickly forces the material into electron degeneracy. It is called a white dwarf. 2. An enve ...
Abs-Apar Mag
... – 6th magnitude are faintest stars seen at night – Result: lower number = brighter “There is no other rule for classing the stars but the estimation of the observer; and hence it is that some astronomers reckon those stars of the first magnitude which others esteem to be of the second.” (Ewing 1812) ...
... – 6th magnitude are faintest stars seen at night – Result: lower number = brighter “There is no other rule for classing the stars but the estimation of the observer; and hence it is that some astronomers reckon those stars of the first magnitude which others esteem to be of the second.” (Ewing 1812) ...
Notes_ stars and sun
... Don’t worry…these stars can live up to 10 billion years. It is estimated that the sun is 4.6 billion years old. It still has 5 billion years of life left. • When yellow stars (medium sized) die, they swell up becoming very large. We then call these stars giant stars. • Giant star- When sun sized ...
... Don’t worry…these stars can live up to 10 billion years. It is estimated that the sun is 4.6 billion years old. It still has 5 billion years of life left. • When yellow stars (medium sized) die, they swell up becoming very large. We then call these stars giant stars. • Giant star- When sun sized ...
here in Powerpoint format
... bA is the apparent brightness of star A bB is the apparent brightness of star B mA is the apparent magnitude of star A mB is the apparent magnitude of star B ...
... bA is the apparent brightness of star A bB is the apparent brightness of star B mA is the apparent magnitude of star A mB is the apparent magnitude of star B ...
The Life of Stars
... hydrogen fuel, called from the center out– “cool” stars are red This star has no more hydrogen in its center – only in its outer edge. This causes the star’s exterior to expand and cool. ...
... hydrogen fuel, called from the center out– “cool” stars are red This star has no more hydrogen in its center – only in its outer edge. This causes the star’s exterior to expand and cool. ...
COM 2014 January
... and started on his homeward journey. Nearing Ethiopia, he heard a woman's screams and was just in time to rescue Andromeda, who was to become his wife. Many years later, the oracle's prediction came true when Perseus accidently struck his grandfather Acrisius with a discus during a sporting event an ...
... and started on his homeward journey. Nearing Ethiopia, he heard a woman's screams and was just in time to rescue Andromeda, who was to become his wife. Many years later, the oracle's prediction came true when Perseus accidently struck his grandfather Acrisius with a discus during a sporting event an ...
Poetry of the Stars
... William Huggins identifies chemical elements in stars. Edmund Haley discovers first white dwarf (Sirius B). Henry Draper photographs of the stellar spectrum of Vega. Giovanni Schiaparelli discovers "canals" of Mars. ...
... William Huggins identifies chemical elements in stars. Edmund Haley discovers first white dwarf (Sirius B). Henry Draper photographs of the stellar spectrum of Vega. Giovanni Schiaparelli discovers "canals" of Mars. ...
July 2005 - Western Nevada Astronomical Society
... are fun for all ages and a great way to spend the evening as a family. What to bring? Bring your favorite telescope or pair of binoculars. Perhaps some of you have telescopes you have never used, bring them up, the Observatory volunteers will help you set up and get you started on exploring the nigh ...
... are fun for all ages and a great way to spend the evening as a family. What to bring? Bring your favorite telescope or pair of binoculars. Perhaps some of you have telescopes you have never used, bring them up, the Observatory volunteers will help you set up and get you started on exploring the nigh ...
Directed Reading A
... _____ 4. All of the following characteristics are used to classify stars EXCEPT a. age. c. brightness. b. name. d. temperature. _____ 5. Which one of the following is NOT true about stars? a. A star goes through many changes during its life cycle. b. A star can become a different type of star as it ...
... _____ 4. All of the following characteristics are used to classify stars EXCEPT a. age. c. brightness. b. name. d. temperature. _____ 5. Which one of the following is NOT true about stars? a. A star goes through many changes during its life cycle. b. A star can become a different type of star as it ...
lecture19 - Stony Brook University
... We see spinning neutron stars as PULSARS. In 1967 a graduate student at Cambridge saw a light curve from a star (intensity vs. time) with very short pulses every 1.34 seconds. 1.34 seconds ...
... We see spinning neutron stars as PULSARS. In 1967 a graduate student at Cambridge saw a light curve from a star (intensity vs. time) with very short pulses every 1.34 seconds. 1.34 seconds ...
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.