W > 1 - The Open University
... M58 sweep just over a degree east to locate NGC4621 (M59) (9.8) eg & NGC4649 (M60) (8.8) eg visible in the same low-power field. Return to M87 and move about 4o south to NGC4472 (M49) (8.4) eg. 4o southwest of M49 is NGC4303 (M61) (9.7) sg. NGC4594 (M104) (8.3) sg the "Sombrero Hat". Sweep about 10o ...
... M58 sweep just over a degree east to locate NGC4621 (M59) (9.8) eg & NGC4649 (M60) (8.8) eg visible in the same low-power field. Return to M87 and move about 4o south to NGC4472 (M49) (8.4) eg. 4o southwest of M49 is NGC4303 (M61) (9.7) sg. NGC4594 (M104) (8.3) sg the "Sombrero Hat". Sweep about 10o ...
Planet Earth – Could There be Life?
... The relative position of Earth appears capable of supporting life… so let’s look at the planet ...
... The relative position of Earth appears capable of supporting life… so let’s look at the planet ...
Black Holes S.Chandrasekhar (1910-1995) March 27
... • The escape velocity will be greater than the velocity of light! • Light is the fastest thing we know of • This a Black Hole ...
... • The escape velocity will be greater than the velocity of light! • Light is the fastest thing we know of • This a Black Hole ...
PDF version (two pages, including the full text)
... sun. If Antares were suddenly placed at the centre of our solar system, Mercury, Venus, the Earth, Mars and the asteroid belt would be inside this monster star, whose vaguely defined surface would lie 4/5 of the way from the star's centre to the orbit of Jupiter. Gravity at the surface of Antares is ...
... sun. If Antares were suddenly placed at the centre of our solar system, Mercury, Venus, the Earth, Mars and the asteroid belt would be inside this monster star, whose vaguely defined surface would lie 4/5 of the way from the star's centre to the orbit of Jupiter. Gravity at the surface of Antares is ...
Lecture 1
... Distance to the nearest star: 3.9x1016m How long does light take to get to us from that star? Speed of light is c=299792458 m/s or about 3x108m/s speed = distance/time or time=distance/speed time= (3.9 x 1016 m) / (3 x 108 m/s) =1.3 x 108 s ...
... Distance to the nearest star: 3.9x1016m How long does light take to get to us from that star? Speed of light is c=299792458 m/s or about 3x108m/s speed = distance/time or time=distance/speed time= (3.9 x 1016 m) / (3 x 108 m/s) =1.3 x 108 s ...
Contemporary Physics - Department of Physics and Astronomy
... have. These stars reach a maximum luminosity with an absolute magnitude of about -19. What would be the most distant galaxy in which we could see such a supernova if the limiting apparent magnitude of our telescope is 25? ...
... have. These stars reach a maximum luminosity with an absolute magnitude of about -19. What would be the most distant galaxy in which we could see such a supernova if the limiting apparent magnitude of our telescope is 25? ...
April
... resides 12 million Light Years away. Over 70 globular clusters have been discovered orbiting this galaxy. M81 and adjoining galaxy M82 had a close encounter about 600 million years ago, resulting in a prolonged period of intense new star formation that continues today. M82 is an irregular galaxy of ...
... resides 12 million Light Years away. Over 70 globular clusters have been discovered orbiting this galaxy. M81 and adjoining galaxy M82 had a close encounter about 600 million years ago, resulting in a prolonged period of intense new star formation that continues today. M82 is an irregular galaxy of ...
TEST1-WHITE Modern scientific theories are NOT: Testable
... a. It is best measured over exactly one year intervals b. It is inversely proportional to the distance to the star c. It was first observed by Galileo with his new telescope d. It is only applicable to objects within the solar system e. It is more accurate as the distances to objects become greater ...
... a. It is best measured over exactly one year intervals b. It is inversely proportional to the distance to the star c. It was first observed by Galileo with his new telescope d. It is only applicable to objects within the solar system e. It is more accurate as the distances to objects become greater ...
Homework #1 Solutions
... 2. a) To answer this question, let’s determine the declination of a star that just barely rises above the horizon for each location. If Alpha Centauri’s declination is greater than this, then we know we can observe it from that location. The declination of a star that just barely rises is δ = −(90◦ ...
... 2. a) To answer this question, let’s determine the declination of a star that just barely rises above the horizon for each location. If Alpha Centauri’s declination is greater than this, then we know we can observe it from that location. The declination of a star that just barely rises is δ = −(90◦ ...
10 OBSERVING COLOR AND TEMPERATURE
... 5. At what setting do you think the light bulb is coolest? 6. At what setting do you think the light bulb is hottest? 7. What color would you expect a very hot star appear to be? 8. Would a very hot star have a high or low B-V index? (See the Measuring the Color of Stars Discussion Sheet for an expl ...
... 5. At what setting do you think the light bulb is coolest? 6. At what setting do you think the light bulb is hottest? 7. What color would you expect a very hot star appear to be? 8. Would a very hot star have a high or low B-V index? (See the Measuring the Color of Stars Discussion Sheet for an expl ...
PROBLEM SOLVING EXAMPLES 2: DIMENSIONAL ANALYSIS
... downward from its equilibrium position by an amount x and then released. Use dimensional analysis to show that the period P of the resulting oscillations does not depend on x. Why does this argument not hold for the simple pendulum, whose period fails to depend on amplitude only if the amplitude is ...
... downward from its equilibrium position by an amount x and then released. Use dimensional analysis to show that the period P of the resulting oscillations does not depend on x. Why does this argument not hold for the simple pendulum, whose period fails to depend on amplitude only if the amplitude is ...
Mon Oct 22, 2012 MOON IN CAPRICORNUS The moon is waxing
... answer to this question, but only if the skies are very clear, and very dark, and you know just where to look. It’s a very dim smudge of light that lies in the direction of the constellation Andromeda. But this small spot is neither little, nor does it have any physical connection with the stars of ...
... answer to this question, but only if the skies are very clear, and very dark, and you know just where to look. It’s a very dim smudge of light that lies in the direction of the constellation Andromeda. But this small spot is neither little, nor does it have any physical connection with the stars of ...
A1993KK54100001
... stars may be products of that process; I also noted that fresh neutron stars could be expected to rotate considerably faster than the pulsars so far discovered, and one should therefore search for shorter periods. Moreover, if rotation was the energy source, one should be able to observe a slight ...
... stars may be products of that process; I also noted that fresh neutron stars could be expected to rotate considerably faster than the pulsars so far discovered, and one should therefore search for shorter periods. Moreover, if rotation was the energy source, one should be able to observe a slight ...
The Warburton`s Challenge
... As well as having many health benefits the star surprise is a healthy snack that will fill you up much more than other unhealthy snack, like a burger. The star surprise is an eye-catching brand because of the shape content and unmatchable taste. The price (which will be £1.50 for large and just 50p ...
... As well as having many health benefits the star surprise is a healthy snack that will fill you up much more than other unhealthy snack, like a burger. The star surprise is an eye-catching brand because of the shape content and unmatchable taste. The price (which will be £1.50 for large and just 50p ...
(BAAO) Trial Paper 2015 Question Paper
... a) In the figure below (Figure 3), mark in the boxes the letters (A, B, C and D) corresponding to the positions of the star 51 Pegasi around the star-planet centre of mass, as inferred from the radial velocities in Figure 1. Assume that the star is orbiting in a clockwise direction. The figure is no ...
... a) In the figure below (Figure 3), mark in the boxes the letters (A, B, C and D) corresponding to the positions of the star 51 Pegasi around the star-planet centre of mass, as inferred from the radial velocities in Figure 1. Assume that the star is orbiting in a clockwise direction. The figure is no ...
test corrections
... 16. What measurement refers to a stars actual brightness? Explain how this is determined. 17. What is an H-R diagram? What information does it contain? 18. Explain how parallax is used to find the distance to nearby stars 19. How can 2 stars have the same absolute magnitude but different apparent ma ...
... 16. What measurement refers to a stars actual brightness? Explain how this is determined. 17. What is an H-R diagram? What information does it contain? 18. Explain how parallax is used to find the distance to nearby stars 19. How can 2 stars have the same absolute magnitude but different apparent ma ...
Hertzsprung-Russell Diagram—key to understanding properties of stars. 26 Sept
... – A show highlighting the current sky, spectacular gatherings of Venus with the moon and other planets in coming months. See what Galileo saw through his telescope 400 years ago— the Milky Way and the Pleiades, details on the moon, the four moons of Jupiter, the phases of Venus, and the mysterious d ...
... – A show highlighting the current sky, spectacular gatherings of Venus with the moon and other planets in coming months. See what Galileo saw through his telescope 400 years ago— the Milky Way and the Pleiades, details on the moon, the four moons of Jupiter, the phases of Venus, and the mysterious d ...
Constellation Part II readingConstellation Part II reading(es)
... The stars are distant objects. Their distances vary, but they are all very far away. Excluding our Sun, the nearest star, Proxima Centauri, is more than 4 light years away. As Earth spins on its axis, we, as Earth-bound observers, spin past this background of distant stars. As Earth spins, the stars ...
... The stars are distant objects. Their distances vary, but they are all very far away. Excluding our Sun, the nearest star, Proxima Centauri, is more than 4 light years away. As Earth spins on its axis, we, as Earth-bound observers, spin past this background of distant stars. As Earth spins, the stars ...
Outline 8: History of the Universe and Solar System
... • Main sequence: hydrogen burns (nuclear fusion) to form helium • Red Giant: helium burns (nuclear fusion) to form carbon, carbon burns to form oxygen, oxygen burns to form iron. All elements lighter than and including iron (56) formed this way. ...
... • Main sequence: hydrogen burns (nuclear fusion) to form helium • Red Giant: helium burns (nuclear fusion) to form carbon, carbon burns to form oxygen, oxygen burns to form iron. All elements lighter than and including iron (56) formed this way. ...
R136a1
RMC 136a1 (usually abbreviated to R136a1) is a Wolf-Rayet star located at the center of R136, the central condensation of stars of the large NGC 2070 open cluster in the Tarantula Nebula. It lies at a distance of about 50 kiloparsecs (163,000 light-years) in the Large Magellanic Cloud. It has the highest mass and luminosity of any known star, at 265 M☉ and 8.7 million L☉, and also one of the hottest at over 50,000 K.