Chapter 19 Star Formation
... Clouds contract in a “distorted” way: In fact the clouds are usually much more irregular than shown in this textbook illustration. (Note: all the colorful emission line nebulae shown in this chapter are just this same molecular gas after a massive stars has started pouring out photons. ...
... Clouds contract in a “distorted” way: In fact the clouds are usually much more irregular than shown in this textbook illustration. (Note: all the colorful emission line nebulae shown in this chapter are just this same molecular gas after a massive stars has started pouring out photons. ...
Chapter 19 Star Formation
... Clouds contract in a “distorted” way: In fact the clouds are usually much more irregular than shown in this textbook illustration. (Note: all the colorful emission line nebulae shown in this chapter are just this same molecular gas after a massive stars has started pouring out photons. ...
... Clouds contract in a “distorted” way: In fact the clouds are usually much more irregular than shown in this textbook illustration. (Note: all the colorful emission line nebulae shown in this chapter are just this same molecular gas after a massive stars has started pouring out photons. ...
Stellar Evolution – Life of a Star
... • Make sure the “Luminosity Classes” is turned ON. Our sun should have a temperature of about 5800oK and a luminosity of 1.0 (This number is used to compare a star’s brightness to our Sun. Thus, we are 1.0) • Below this information is the radius (size) of the star. This number is also compared to ou ...
... • Make sure the “Luminosity Classes” is turned ON. Our sun should have a temperature of about 5800oK and a luminosity of 1.0 (This number is used to compare a star’s brightness to our Sun. Thus, we are 1.0) • Below this information is the radius (size) of the star. This number is also compared to ou ...
August
... Mizar & Alcor This pair in the constellation Ursa Major (URR-suh, MAY-jer) is a visual double. However, Mizar takes its place in the celestial hall of fame as the first known Binary Star, one that consists of a pair of gravitationally bound stars that orbit each other. Found to be double in 1650, t ...
... Mizar & Alcor This pair in the constellation Ursa Major (URR-suh, MAY-jer) is a visual double. However, Mizar takes its place in the celestial hall of fame as the first known Binary Star, one that consists of a pair of gravitationally bound stars that orbit each other. Found to be double in 1650, t ...
Day_29
... Helium is then used up in the core. He fusion in an inner shell and H fusion in an outer shell all surrounding a C core. Star gets more luminous and cool, and enters the asymptotic giant branch (AGB). ...
... Helium is then used up in the core. He fusion in an inner shell and H fusion in an outer shell all surrounding a C core. Star gets more luminous and cool, and enters the asymptotic giant branch (AGB). ...
The Observer Newsletter - the TriState Astronomers
... galaxies and double stars. Most of the campers had never looked through a telescope before and many of them live in a big city where they are usually able to see only the moon and a few stars. We were also fortunate to have Jeff do a laser guided tour. It had a historical twist that took us from the ...
... galaxies and double stars. Most of the campers had never looked through a telescope before and many of them live in a big city where they are usually able to see only the moon and a few stars. We were also fortunate to have Jeff do a laser guided tour. It had a historical twist that took us from the ...
Chapter 19 Star Formation
... 19.2 The Formation of Stars Like the Sun 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: Internal pressure force outward, balancing the inward force of gravi ...
... 19.2 The Formation of Stars Like the Sun 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: Internal pressure force outward, balancing the inward force of gravi ...
Lab 5 Takehome
... graph like Figure 2. What additional measurements would you need to make before you could plot a graph like Figure 1? Would making these additional measurements be easy or hard? Explain your ...
... graph like Figure 2. What additional measurements would you need to make before you could plot a graph like Figure 1? Would making these additional measurements be easy or hard? Explain your ...
Letot STELLAR EVOLUTION By Kyle Letot Grade Level: 6
... Five million to nearly 15 billion years old! The age of an individual star varies as they were all made at different times and have different life spans. Stars can range from a few million to a several billion years old. The oldest star that has been yet discovered is HE 1523-0901. It is estimated t ...
... Five million to nearly 15 billion years old! The age of an individual star varies as they were all made at different times and have different life spans. Stars can range from a few million to a several billion years old. The oldest star that has been yet discovered is HE 1523-0901. It is estimated t ...
The Lives of Stars
... moving more rapidly than average will escape, or “evaporate,” from such a cluster • A stellar association is a group of newborn stars that are moving apart so rapidly that their gravitational attraction for one another cannot pull them into orbit about one another ...
... moving more rapidly than average will escape, or “evaporate,” from such a cluster • A stellar association is a group of newborn stars that are moving apart so rapidly that their gravitational attraction for one another cannot pull them into orbit about one another ...
14.5 Yellow Giants and Pulsating Stars Variable Stars Not all stars
... are found in the lower portion of the HR diagram. There are many stars like Mira (known as Mira variables) that have pulsation periods of about 1 year. These lie in the upper right of the HR diagram. The Sun will probably become a Mira variable near the end of its lifetime, as we will discuss in t ...
... are found in the lower portion of the HR diagram. There are many stars like Mira (known as Mira variables) that have pulsation periods of about 1 year. These lie in the upper right of the HR diagram. The Sun will probably become a Mira variable near the end of its lifetime, as we will discuss in t ...
Astronomy 103 Exam 2 Review
... C. Both observers agree: since the clocks are not moving with respect to each other the clocks run at the same speed and read the same Lme. D. Both observers agree: the clock near Earth is running slower than the clock high above Earth's surface. ...
... C. Both observers agree: since the clocks are not moving with respect to each other the clocks run at the same speed and read the same Lme. D. Both observers agree: the clock near Earth is running slower than the clock high above Earth's surface. ...
Astronomy Study Guide #2
... 10. What do you have to do in order to find the absolute magnitude of a star? What is apparent magnitude? 11. Which stars which contribute most to the chemical enrichment of the interstellar medium? 12. What is a light year? ...
... 10. What do you have to do in order to find the absolute magnitude of a star? What is apparent magnitude? 11. Which stars which contribute most to the chemical enrichment of the interstellar medium? 12. What is a light year? ...
Chapter 10 The Bizarre Stellar Graveyard
... • What is a black hole? – A black hole is a massive object whose radius is so small that the escape velocity exceeds the speed of light. ...
... • What is a black hole? – A black hole is a massive object whose radius is so small that the escape velocity exceeds the speed of light. ...
HR Diagram (Temperature Versus Absolute Magnitude)
... single ray of light can travel in space in one year (9.5 trillion kilometers) • A single ray of light travels at about 300,000 kilometers per second in space ...
... single ray of light can travel in space in one year (9.5 trillion kilometers) • A single ray of light travels at about 300,000 kilometers per second in space ...
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.