Name - MIT
... B) It refers to any kind of instrument that can be hooked up to a telescope. C) It is an electronic detector that can be used in place of photographic film for taking images of the sky. D) It is a unit used by astronomers to measure angular resolution. E) It is the next telescope that will be launch ...
... B) It refers to any kind of instrument that can be hooked up to a telescope. C) It is an electronic detector that can be used in place of photographic film for taking images of the sky. D) It is a unit used by astronomers to measure angular resolution. E) It is the next telescope that will be launch ...
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... From here on earth it is difficult to fathom the huge distances that exist between the stars and planets. The circumference of the earth (38,500 km) may seem like a long way to us but is an insignificant distance in space. The nearest celestial object to earth, the moon, is approximately 400, 000 km ...
... From here on earth it is difficult to fathom the huge distances that exist between the stars and planets. The circumference of the earth (38,500 km) may seem like a long way to us but is an insignificant distance in space. The nearest celestial object to earth, the moon, is approximately 400, 000 km ...
Stellar Explosions
... In recognition of the International Year of Astronomy, this exhibit includes six twosided panels that feature key astronomical discoveries from the past 400 years. The exhibit also highlights the technological advancements that made these discoveries possible. Exhibit topics range from celestial obj ...
... In recognition of the International Year of Astronomy, this exhibit includes six twosided panels that feature key astronomical discoveries from the past 400 years. The exhibit also highlights the technological advancements that made these discoveries possible. Exhibit topics range from celestial obj ...
Planet Earth Notes
... overall size of Earth. This is why from space, the Earths’ surface looks smooth and landscape features such as mountains are not visible from space. ...
... overall size of Earth. This is why from space, the Earths’ surface looks smooth and landscape features such as mountains are not visible from space. ...
SPECTRAL ANALYSIS OF A NEWLY DISCOVERED HgMn STAR
... distinctive lines of some elements such as Hg, Mn, Y, and Ba. The HgMn stars have weak or non-existent magnetic fields [2]. Their effective temperatures range between 10500-15000 K and their photospheres exhibit overabundance of some elements: Sc, Cr,, Mn, Ga, Sr, Y, Zr, Ba, Ce, and Hg [3]. They may ...
... distinctive lines of some elements such as Hg, Mn, Y, and Ba. The HgMn stars have weak or non-existent magnetic fields [2]. Their effective temperatures range between 10500-15000 K and their photospheres exhibit overabundance of some elements: Sc, Cr,, Mn, Ga, Sr, Y, Zr, Ba, Ce, and Hg [3]. They may ...
The Milky Way
... You have begun your study of the sun and other stars, but now it is time to focus on the thin gas and dust that drifts through space between the stars. This chapter will show you how important this material is to the story of stars and will help you answer three important questions: • How do astrono ...
... You have begun your study of the sun and other stars, but now it is time to focus on the thin gas and dust that drifts through space between the stars. This chapter will show you how important this material is to the story of stars and will help you answer three important questions: • How do astrono ...
Some Important Introductory Concepts
... but you don’t need to know that, only that it is like the size of a microscopic dust grain. Appendix 2 in the textbook goes over some of this; just skim it now and use it for future reference if you become confused about units. But we will only be using a few units in this class, so it shouldn’t cau ...
... but you don’t need to know that, only that it is like the size of a microscopic dust grain. Appendix 2 in the textbook goes over some of this; just skim it now and use it for future reference if you become confused about units. But we will only be using a few units in this class, so it shouldn’t cau ...
Eclipse of the Sun 1 September 2016
... Precautions for watching an eclipse-I • It is never safe to look directly at the Sun except during a total eclipse • A partial or annular eclipse can cause permanent eye damage, even when the Sun is mostly covered at 99% as in Reunion island, even though you might not feel any discomfort at the mom ...
... Precautions for watching an eclipse-I • It is never safe to look directly at the Sun except during a total eclipse • A partial or annular eclipse can cause permanent eye damage, even when the Sun is mostly covered at 99% as in Reunion island, even though you might not feel any discomfort at the mom ...
HR Diagram of One Solar Mass Evolution
... • So there are billions in our galaxy, but they are faint ...
... • So there are billions in our galaxy, but they are faint ...
Stars…Giants, Supergiants, Dwarfs….
... luminous than others of the same color (=temperature). • There is a wide range in luminosity (and size) for stars of the same temperature. • Leads to the classification of dwarfs, giants, and supergiants ...
... luminous than others of the same color (=temperature). • There is a wide range in luminosity (and size) for stars of the same temperature. • Leads to the classification of dwarfs, giants, and supergiants ...
Navigational Tool Background
... Cross-Staff: A cross-staff is inspired by the Kamal which was used by the Arab Navigators. The cross-staff is made of a long staff normally 36 inches long and 4 smaller cross pieces which move up and down the long staff. The navigator holds the cross-staff to the eye and moves one of the four cross ...
... Cross-Staff: A cross-staff is inspired by the Kamal which was used by the Arab Navigators. The cross-staff is made of a long staff normally 36 inches long and 4 smaller cross pieces which move up and down the long staff. The navigator holds the cross-staff to the eye and moves one of the four cross ...
Astronomy In the News Parallax Class demos: Parallax
... • Space measurements not affected by atmosphere ...
... • Space measurements not affected by atmosphere ...
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... Theoretical Prediction of Neutron Stars * For example, the collapse of a massive star’s core would greatly increase its spin rate by conservation of angular momentum. ...
... Theoretical Prediction of Neutron Stars * For example, the collapse of a massive star’s core would greatly increase its spin rate by conservation of angular momentum. ...
Week 6
... The bright star in the top left corner of Orion, Betelgeuse, has a radius 936 times that of the Sun and a surface temperature of 3500 K. What is the luminosity of this star? If Betelgeuse is 640 ly from Earth, what is the brightness of the light from Betelgeuse that reaches Earth? ...
... The bright star in the top left corner of Orion, Betelgeuse, has a radius 936 times that of the Sun and a surface temperature of 3500 K. What is the luminosity of this star? If Betelgeuse is 640 ly from Earth, what is the brightness of the light from Betelgeuse that reaches Earth? ...
Gravitational redshifts
... allowing a flattened buoyant “cap” to form. X-ray brightness and inferred velocity field in Per-A can be reproduced. (Reynolds et al.: Buoyant radio-lobes in a viscous intracluster ...
... allowing a flattened buoyant “cap” to form. X-ray brightness and inferred velocity field in Per-A can be reproduced. (Reynolds et al.: Buoyant radio-lobes in a viscous intracluster ...
Astronomy 103 Announcements
... The seasons and the tilt of the Earth The Earth’s axis of rotation is not perpendicular to the plane of the Earth’s orbit about the Sun: The Earth's rotation axis is tilted by 23.5 degrees away from perpendicular to its orbit— the plane of the equator is 23.5 degrees from the plane of the orbit. On ...
... The seasons and the tilt of the Earth The Earth’s axis of rotation is not perpendicular to the plane of the Earth’s orbit about the Sun: The Earth's rotation axis is tilted by 23.5 degrees away from perpendicular to its orbit— the plane of the equator is 23.5 degrees from the plane of the orbit. On ...
Lecture Two (Powerpoint format)
... The solstices occur when the sun reaches a maximum (solstice = sol sistere or sun stops in Latin) distance away from the celestial equator -roughly June 21 and December 21. The equinoxes occur when the sun intersects the celestial equator -roughly March 21 and September 21. On this day, the sun ...
... The solstices occur when the sun reaches a maximum (solstice = sol sistere or sun stops in Latin) distance away from the celestial equator -roughly June 21 and December 21. The equinoxes occur when the sun intersects the celestial equator -roughly March 21 and September 21. On this day, the sun ...