Answers to Coursebook questions – Chapter E3
... Star B has a larger parallax, so it is closer. Hence it appears brighter. ...
... Star B has a larger parallax, so it is closer. Hence it appears brighter. ...
Unit Two Worksheet – Astronomy
... Select the answer that best completes the statement and write the letter for that answer in the space provided. ...
... Select the answer that best completes the statement and write the letter for that answer in the space provided. ...
Summer 2001 Day 07: Intro to Solar System
... 4) What does the brightness of a star depend on? A) Define brightness as the watts/m2 received from a star. B) Brightness follows an inverse square relation B=L/(4πR2). Draw the picture (see figure 54.2 C) Calculate the brightness of the Sun as seen from Earth B=1,355 W/m2 i) Typical stellar brightn ...
... 4) What does the brightness of a star depend on? A) Define brightness as the watts/m2 received from a star. B) Brightness follows an inverse square relation B=L/(4πR2). Draw the picture (see figure 54.2 C) Calculate the brightness of the Sun as seen from Earth B=1,355 W/m2 i) Typical stellar brightn ...
Starry Night¨ Times - October 2008
... distant, while M47 is closer at 1,700 lightyears. Of special interest is the planetary nebula that seems to be embedded near M46's center. Although the nebula is probably not actually part of the cluster (it simply lies along the same line of sight), it makes for a good opportunity to see two differ ...
... distant, while M47 is closer at 1,700 lightyears. Of special interest is the planetary nebula that seems to be embedded near M46's center. Although the nebula is probably not actually part of the cluster (it simply lies along the same line of sight), it makes for a good opportunity to see two differ ...
stars - Chatt
... • An enormous explosion when a large star dies. • When all the hydrogen is used up the core collapses • The absence of pressure causes a neutron star or a black hole. • The explosion can be bright enough to see during the day! ...
... • An enormous explosion when a large star dies. • When all the hydrogen is used up the core collapses • The absence of pressure causes a neutron star or a black hole. • The explosion can be bright enough to see during the day! ...
Absolute magnitude
... magnitude. => Brighter objects have a smaller magnitude. ▪ Apparent magnitude: how bright the star appears to us in the sky. m ▪ Absolute magnitude: how bright the star would be at a distance of 10 parsecs from us. M ...
... magnitude. => Brighter objects have a smaller magnitude. ▪ Apparent magnitude: how bright the star appears to us in the sky. m ▪ Absolute magnitude: how bright the star would be at a distance of 10 parsecs from us. M ...
The life cycle of a star
... Gravity is a force that pulls objects toward each other The more mass an object has, the more gravity it exerts The Sun has stronger gravity than Earth The force gets smaller as the distance between two objects increases ...
... Gravity is a force that pulls objects toward each other The more mass an object has, the more gravity it exerts The Sun has stronger gravity than Earth The force gets smaller as the distance between two objects increases ...
Today`s Class: Measuring temperatures of stars Astronomer`s
... c) A star with spectral type A is cooler than a star with spectral type B. d) All of the above are true. ...
... c) A star with spectral type A is cooler than a star with spectral type B. d) All of the above are true. ...
Patterns in the Sky
... - Different cultures named the same constellations differently as they used their imagination to group the stars. - Orion (a great hunter), named by the Greeks, was also named as a canoe by the First Nations peoples of North America. - Official constellations have names from the Greeks and Arabic my ...
... - Different cultures named the same constellations differently as they used their imagination to group the stars. - Orion (a great hunter), named by the Greeks, was also named as a canoe by the First Nations peoples of North America. - Official constellations have names from the Greeks and Arabic my ...
1. If a star`s temperature is doubled but radius is kept constant, by
... 1. If a star’s temperature is doubled but radius is kept constant, by how much does its luminosity go up by? 1a. Goes up by a factor of 24 = 16. 2. If a star’s temperature is increased by a factor of three, four, five and six, but in every case its radius is kept constant, what happens to its lumino ...
... 1. If a star’s temperature is doubled but radius is kept constant, by how much does its luminosity go up by? 1a. Goes up by a factor of 24 = 16. 2. If a star’s temperature is increased by a factor of three, four, five and six, but in every case its radius is kept constant, what happens to its lumino ...
Integrative Studies 410 Our Place in the Universe
... • Some have names that go back to ancient times (e.g. Castor and Pollux, Greek mythology) • Some were named by Arab astronomers (e.g. Aldebaran, Algol, etc.) • Since the 17th century we use a scheme that lists stars by constellation – in order of their apparent brightness – labeled alphabetically in ...
... • Some have names that go back to ancient times (e.g. Castor and Pollux, Greek mythology) • Some were named by Arab astronomers (e.g. Aldebaran, Algol, etc.) • Since the 17th century we use a scheme that lists stars by constellation – in order of their apparent brightness – labeled alphabetically in ...
Project Packet - Montville.net
... 1. Time of year when it is visible 2. What direction you should look and at what time 3. How high above the horizon you should look. Part 2 1. What does your constellation look like? 2. Draw a diagram or include an image in the space on the results pages. Part 3 Look up what stars are in your conste ...
... 1. Time of year when it is visible 2. What direction you should look and at what time 3. How high above the horizon you should look. Part 2 1. What does your constellation look like? 2. Draw a diagram or include an image in the space on the results pages. Part 3 Look up what stars are in your conste ...
Nov - Wadhurst Astronomical Society
... Square of Pegasus southwards leads to Fomalhaut the brightest star in Pisces and fairly close to the horizon. About midway along this line from Pegasus to Fomalhaut are two faint stars either side the line that help make up the constellation of Aquarius. On this same line, midway between Pegasus and ...
... Square of Pegasus southwards leads to Fomalhaut the brightest star in Pisces and fairly close to the horizon. About midway along this line from Pegasus to Fomalhaut are two faint stars either side the line that help make up the constellation of Aquarius. On this same line, midway between Pegasus and ...
Winter Stargazing - Trimble County Schools
... and Dzeta Tauri, and the impulsive eye is marked by Aldebaran, a red giant. ...
... and Dzeta Tauri, and the impulsive eye is marked by Aldebaran, a red giant. ...
Supernova
... • The core can cool by producing neutrinos. – Plasma at 1011 K – Opaque to photons • Neutrinos can carry kinetic energy. – Hot enough for all three ...
... • The core can cool by producing neutrinos. – Plasma at 1011 K – Opaque to photons • Neutrinos can carry kinetic energy. – Hot enough for all three ...
Chapter 15 Stars, Galaxies
... but still high-mass stars become neutron stars. f. They all start out as a part of nebulas that contract to form protostars. g. Low-mass and medium-mass stars turn into red giants as they use up their fuel. They later form planetary nebulas and white dwarfs. High-mass stars turn into supergiants as ...
... but still high-mass stars become neutron stars. f. They all start out as a part of nebulas that contract to form protostars. g. Low-mass and medium-mass stars turn into red giants as they use up their fuel. They later form planetary nebulas and white dwarfs. High-mass stars turn into supergiants as ...
Amie Bickert - ColonialAcademyScience
... White dwarf: blue-white core of the star that is left behind cools forms this. Supernovas: an explosion of a suergiant Neutron star: the remains of high-mass stars. Black holes- an object with gravity so strong that nothing, not even light, can escape. Guided Practice: T. and Ss. read se ...
... White dwarf: blue-white core of the star that is left behind cools forms this. Supernovas: an explosion of a suergiant Neutron star: the remains of high-mass stars. Black holes- an object with gravity so strong that nothing, not even light, can escape. Guided Practice: T. and Ss. read se ...
The Life Cycle of Stars
... Eagle Nebula and other nebulae (stars in formation) on this page. Continue by reading up on Main Sequence Stars and find out how our sun compares in mass to other stars like Sirius, and Proxima Centauri. Based on its mass, will our sun be around for a while, WHY? Realize that once our Sun starts to ...
... Eagle Nebula and other nebulae (stars in formation) on this page. Continue by reading up on Main Sequence Stars and find out how our sun compares in mass to other stars like Sirius, and Proxima Centauri. Based on its mass, will our sun be around for a while, WHY? Realize that once our Sun starts to ...
Brighter than the average star?
... with the words “Far out in the uncharted backwaters of the unfashionable end of the Western Spiral arm of the galaxy lies a small unregarded yellow sun.” There is a slight inaccuracy in that sentence. Rather than being relatively insignificant, our Sun is in fact one of the biggest and brightest sta ...
... with the words “Far out in the uncharted backwaters of the unfashionable end of the Western Spiral arm of the galaxy lies a small unregarded yellow sun.” There is a slight inaccuracy in that sentence. Rather than being relatively insignificant, our Sun is in fact one of the biggest and brightest sta ...
Corona Australis
Corona Australis /kɵˈroʊnə ɒˈstreɪlɨs/ or Corona Austrina /kɵˈroʊnə ɒˈstraɪnə/ is a constellation in the Southern Celestial Hemisphere. Its Latin name means ""southern crown"", and it is the southern counterpart of Corona Borealis, the northern crown. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The Ancient Greeks saw Corona Australis as a wreath rather than a crown and associated it with Sagittarius or Centaurus. Other cultures have likened the pattern to a turtle, ostrich nest, a tent, or even a hut belonging to a rock hyrax.Although fainter than its namesake, the oval- or horseshoe-shaped pattern of its brighter stars renders it distinctive. Alpha and Beta Coronae Australis are the two brightest stars with an apparent magnitude of around 4.1. Epsilon Coronae Australis is the brightest example of a W Ursae Majoris variable in the southern sky. Lying alongside the Milky Way, Corona Australis contains one of the closest star-forming regions to our Solar System—a dusty dark nebula known as the Corona Australis Molecular Cloud, lying about 430 light years away. Within it are stars at the earliest stages of their lifespan. The variable stars R and TY Coronae Australis light up parts of the nebula, which varies in brightness accordingly.