1” “Sky-Notes” of the Open University Astronomy Club. September
... Nebula", may just be detected east of Deneb (1.3) by the unaided eye. It shows up well in photographs together with the adjacent IC5067/70, the "Pelican Nebula". NGC7027 (10.4) en. Strange object identified as a star, then a planetary nebula and currently an emission nebula. NGC7048 (11.3) pn. NGC70 ...
... Nebula", may just be detected east of Deneb (1.3) by the unaided eye. It shows up well in photographs together with the adjacent IC5067/70, the "Pelican Nebula". NGC7027 (10.4) en. Strange object identified as a star, then a planetary nebula and currently an emission nebula. NGC7048 (11.3) pn. NGC70 ...
Stars and Universe Test Review - Garnet Valley School District
... 21. _________________________ uses a curved surface to reflect radio waves from space 22. _________________________ a graph that plots a star’s temperature (x axis) verses its brightness (y-axis) 23. _________________________ irregular shaped galaxies 24. _________________________ the distance from ...
... 21. _________________________ uses a curved surface to reflect radio waves from space 22. _________________________ a graph that plots a star’s temperature (x axis) verses its brightness (y-axis) 23. _________________________ irregular shaped galaxies 24. _________________________ the distance from ...
Apparent Magnitude - RanelaghALevelPhysics
... emitted per second (units of Watts). • The Sun’s luminosity is about 4 x 1026 W. • The most luminous stars have a luminosity of about million times that of the Sun! ...
... emitted per second (units of Watts). • The Sun’s luminosity is about 4 x 1026 W. • The most luminous stars have a luminosity of about million times that of the Sun! ...
Astronomy 242: Review Questions #1 Distributed: February 10
... 13. Sketch Hubble’s classification system for luminous galaxies, and briefly describe the criteria used classify galaxies. How do key properties like ISM makeup and star formation change along the Hubble sequence? 14. Two years ago, an undergraduate class at University College London discovered Sup ...
... 13. Sketch Hubble’s classification system for luminous galaxies, and briefly describe the criteria used classify galaxies. How do key properties like ISM makeup and star formation change along the Hubble sequence? 14. Two years ago, an undergraduate class at University College London discovered Sup ...
Lecture 6
... the naked eye responds. Also, faintest were about 100x fainter than brightest. Break the factor of 100 into 5 equal factors: Start with Vega Polaris 2.51x fainter 2.5x fainter than Polaris 2.5x fainter than that ...
... the naked eye responds. Also, faintest were about 100x fainter than brightest. Break the factor of 100 into 5 equal factors: Start with Vega Polaris 2.51x fainter 2.5x fainter than Polaris 2.5x fainter than that ...
Astronomy Study Guide #2
... 23. What is the ``Doppler Effect" and how does it apply to light? And to stars? 24. Why are the Balmer lines of hydrogen important? What are they and how are they formed? (Hint: We saw these in the spectral tube demonstrations.) 25. How will stars less massive than 1.5 M_0 end their Post-Main Seque ...
... 23. What is the ``Doppler Effect" and how does it apply to light? And to stars? 24. Why are the Balmer lines of hydrogen important? What are they and how are they formed? (Hint: We saw these in the spectral tube demonstrations.) 25. How will stars less massive than 1.5 M_0 end their Post-Main Seque ...
01 - cloudfront.net
... 1. a ball of gases that gives off a tremendous amount of electromagnetic energy 2. From Earth, stars appear as tiny specs of white light, but they actually vary in color. 3. B 4. A 5. C 6. D 7. C 8. A 9. the elements that make up the star 10. hydrogen; helium 11. A 12. C 13. B 14. the surface temper ...
... 1. a ball of gases that gives off a tremendous amount of electromagnetic energy 2. From Earth, stars appear as tiny specs of white light, but they actually vary in color. 3. B 4. A 5. C 6. D 7. C 8. A 9. the elements that make up the star 10. hydrogen; helium 11. A 12. C 13. B 14. the surface temper ...
The Ursa Major Moving Cluster, Collinder 285
... at 10 km/sec, and its spatial velocity relative to our Sun is about 46 km/s. This cluster is centered at a distance of about 75 light years from us (i.e., our solar system). As it is spread over a volume of 30 light years length and 18 light years width, it covers an enourmous portion of the sky, an ...
... at 10 km/sec, and its spatial velocity relative to our Sun is about 46 km/s. This cluster is centered at a distance of about 75 light years from us (i.e., our solar system). As it is spread over a volume of 30 light years length and 18 light years width, it covers an enourmous portion of the sky, an ...
Stars
... Mizar, 88 light years distant, is the middle star in the handle of the Big Dipper. It was the first binary star system to be imaged with a telescope. Spectroscopic observations show periodic Doppler shifts in the spectra of Mizar A and B, indicating that they are each binary stars. But they were too ...
... Mizar, 88 light years distant, is the middle star in the handle of the Big Dipper. It was the first binary star system to be imaged with a telescope. Spectroscopic observations show periodic Doppler shifts in the spectra of Mizar A and B, indicating that they are each binary stars. But they were too ...
J tieutifit meti(au.
... est to the earth on October 19th and farthest from it on the governing factor in traction systems for city n�p, North of Andromeda the eye is caught by a zigzag October 7th. but suddenly it was found electricity was destined to rowof stars resembling the letter" W;"these mark the ...
... est to the earth on October 19th and farthest from it on the governing factor in traction systems for city n�p, North of Andromeda the eye is caught by a zigzag October 7th. but suddenly it was found electricity was destined to rowof stars resembling the letter" W;"these mark the ...
Lecture4
... The visible-light spectrum of the Sun is wrapped here end to end from red to blue. The dark “lines” are wavelengths that are absorbed by atoms in the Sun’s outer layers. There are millions of “lines” in the Sun’s spectrum. ...
... The visible-light spectrum of the Sun is wrapped here end to end from red to blue. The dark “lines” are wavelengths that are absorbed by atoms in the Sun’s outer layers. There are millions of “lines” in the Sun’s spectrum. ...
The Danger of Deadly Cosmic Explosions
... • Deadly from neutrinos within 30 light years. • Atmosphere, weather, ruined. • Major extinction. • Not much harm if further. • SN material in sediments. • 1 SN/100 years in our galaxy • Close 1 per 100million years. • Good news: our neighbor stars peaceful. • Bad news: when one does show signs of b ...
... • Deadly from neutrinos within 30 light years. • Atmosphere, weather, ruined. • Major extinction. • Not much harm if further. • SN material in sediments. • 1 SN/100 years in our galaxy • Close 1 per 100million years. • Good news: our neighbor stars peaceful. • Bad news: when one does show signs of b ...
Star Formation
... • Interstellar gas, like the sun, is 74% hydrogen and 25% helium. • Interstellar dust, like clouds in the gas giants, are molecular carbon monoxide, ammonia, and water. • Traces of all other elements are present. ...
... • Interstellar gas, like the sun, is 74% hydrogen and 25% helium. • Interstellar dust, like clouds in the gas giants, are molecular carbon monoxide, ammonia, and water. • Traces of all other elements are present. ...
3-Stars AM Adapted - vhs-ees-am
... Over a very long time, a white dwarf will cool to temperatures at which it is no longer visible and become a cold black dwarf; become a lump of coal in the sky when all its nuclear energy is gone ...
... Over a very long time, a white dwarf will cool to temperatures at which it is no longer visible and become a cold black dwarf; become a lump of coal in the sky when all its nuclear energy is gone ...
COM 2014 January
... The Perseus Cluster (Abell 426) is a cluster of galaxies in the constellation Perseus. It has a recession speed of 5,366 km/s and a diameter of 863′. It is one of the most massive objects in the universe, containing thousands of galaxies immersed in a vast cloud of multimillion degree gas. Image: ...
... The Perseus Cluster (Abell 426) is a cluster of galaxies in the constellation Perseus. It has a recession speed of 5,366 km/s and a diameter of 863′. It is one of the most massive objects in the universe, containing thousands of galaxies immersed in a vast cloud of multimillion degree gas. Image: ...
Distance to Stars
... • The brightness a star would appear if it was set at a standard distance from Earth. – Astronomers calculate the stars apparent magnitude and it’s distance from Earth. – Then calculate the brightness if it were a standard distance from Earth. ...
... • The brightness a star would appear if it was set at a standard distance from Earth. – Astronomers calculate the stars apparent magnitude and it’s distance from Earth. – Then calculate the brightness if it were a standard distance from Earth. ...
Astro 1 & 100 Levine Homework Stars Name:____________________________
... You may want to do the lecture-tutorial on pg 33, Apparent and Absolute Magnitude of Stars, prior to doing this portion of the homework, if you need a refresher on m and M. Ranking questions are 2 points each. Consider the following table of stars: ...
... You may want to do the lecture-tutorial on pg 33, Apparent and Absolute Magnitude of Stars, prior to doing this portion of the homework, if you need a refresher on m and M. Ranking questions are 2 points each. Consider the following table of stars: ...
Monday, December 8 - Otterbein University
... 1)in the constellation Sagittarius 2)in the constellation Scorpius 3)in the constellation Libra 4)west (right) of Libra ...
... 1)in the constellation Sagittarius 2)in the constellation Scorpius 3)in the constellation Libra 4)west (right) of Libra ...
Chapter 1 Daily Note Sheets Completed Power Point
... • 1. Using the two pointer stars in the Big Dipper (Merak & Dubhe) create a straight line to the North Star • 2. Face north and count 4 fist and a finger up from the horizon (altitude) ...
... • 1. Using the two pointer stars in the Big Dipper (Merak & Dubhe) create a straight line to the North Star • 2. Face north and count 4 fist and a finger up from the horizon (altitude) ...
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.