proposed october viewing list
... best with the 4” refractor at low magnification. It contains more than 2900 stars and is estimated to be about 250 million years old. M11 is receding from us at a speed of 27 km/s. M17 The Omega, or Swan, Nebula in the constellation Sagittarius (Sah-jih-TAIR-ee-us ) is an emission nebula caused to r ...
... best with the 4” refractor at low magnification. It contains more than 2900 stars and is estimated to be about 250 million years old. M11 is receding from us at a speed of 27 km/s. M17 The Omega, or Swan, Nebula in the constellation Sagittarius (Sah-jih-TAIR-ee-us ) is an emission nebula caused to r ...
The Life Cycle of Stars Introduction Stars are huge spheres of very
... distances from Earth. We use a light-year to describe the distance from Earth to far away objects such as stars and galaxies. A light-year is the distance that light travels in one year, or about 9.5 x 1012 km. Stars are powered by nuclear fusion reactions. A star is held together by the enormous gr ...
... distances from Earth. We use a light-year to describe the distance from Earth to far away objects such as stars and galaxies. A light-year is the distance that light travels in one year, or about 9.5 x 1012 km. Stars are powered by nuclear fusion reactions. A star is held together by the enormous gr ...
Distances farther out
... UV Mg II lines at λ2796 & 2802 (h & k lines, visible only from satellite borne telescopes) - also exhibit self absorption. Wilson Bappu effect: 1956, Wilson & Bappu at Mt Wilson: Width of K2 line correlates very well with visual magnitude of classes G, K, M from dwarfs through supergiants over a mag ...
... UV Mg II lines at λ2796 & 2802 (h & k lines, visible only from satellite borne telescopes) - also exhibit self absorption. Wilson Bappu effect: 1956, Wilson & Bappu at Mt Wilson: Width of K2 line correlates very well with visual magnitude of classes G, K, M from dwarfs through supergiants over a mag ...
Exercise 9
... Introduction: By looking at an apparently flat background of stars at night or at a star chart printed on a page, we often forget about the three-dimensional nature of the universe. In this exercise, you will construct (with welding rods and Styrofoam balls) a model of nearby space including many of ...
... Introduction: By looking at an apparently flat background of stars at night or at a star chart printed on a page, we often forget about the three-dimensional nature of the universe. In this exercise, you will construct (with welding rods and Styrofoam balls) a model of nearby space including many of ...
kolynos - Look and Learn
... about twice as long. Polaris thus be drawn upon for buying desirable sites. belongs to a very wonderful type of sun Thus a village or a district would be known as the Cepheid Variables. For encouraged to think of its own beautiful these changes to take place so rapidly places, and to care for them. ...
... about twice as long. Polaris thus be drawn upon for buying desirable sites. belongs to a very wonderful type of sun Thus a village or a district would be known as the Cepheid Variables. For encouraged to think of its own beautiful these changes to take place so rapidly places, and to care for them. ...
Lecture 10 Advanced Variable Star Stuff March 18 2003 8:00 PM
... out over gravity and starts to push the outer atmosphere of the star outward. As the atmosphere pushes out, it cools off and falls back inward and the valve starts over. Now, when is the star its brightest? When it has a larger radius or a smaller radius? ...
... out over gravity and starts to push the outer atmosphere of the star outward. As the atmosphere pushes out, it cools off and falls back inward and the valve starts over. Now, when is the star its brightest? When it has a larger radius or a smaller radius? ...
Name: pd: ______ Date: Constellation Scavenger Hunt! Google Sky
... - Find the constellation Orion & name the stars in Orion’s Belt a) ____________________________________________ b) ____________________________________________ c) ____________________________________________ 3. If you click on the stars and read the information windows for each, you will find two of ...
... - Find the constellation Orion & name the stars in Orion’s Belt a) ____________________________________________ b) ____________________________________________ c) ____________________________________________ 3. If you click on the stars and read the information windows for each, you will find two of ...
Using Star Charts Introduction A Digression on Star Names
... The SC1 is useful for showing the coordinates and names of a large number of stars. It can be used by itself in learning the constellations, although it is not quite as convenient as the star wheel. The SC1 shows the magnitudes of stars by the size of the dot representing the star. The corresponden ...
... The SC1 is useful for showing the coordinates and names of a large number of stars. It can be used by itself in learning the constellations, although it is not quite as convenient as the star wheel. The SC1 shows the magnitudes of stars by the size of the dot representing the star. The corresponden ...
Teaching ideas for Option E, Astrophysics
... questions about the Universe and its future evolution and eventual fate, questions that have been on man’s mind since ancient times. Unlike the ancients though, modern astrophysics has been able to provide precise methods that are helping answer these questions. Much of the success of modern astroph ...
... questions about the Universe and its future evolution and eventual fate, questions that have been on man’s mind since ancient times. Unlike the ancients though, modern astrophysics has been able to provide precise methods that are helping answer these questions. Much of the success of modern astroph ...
Foundation 1 - Discovering Astronomy
... 2: Identify the defining characteristic of main-sequence stars and compare the relative lifetimes on the main sequence for stars of different mass. 3: List the names of nuclear fusion reactions and indicate the classes of stars in which each reaction is thought to be active. 4: Identify the physical ...
... 2: Identify the defining characteristic of main-sequence stars and compare the relative lifetimes on the main sequence for stars of different mass. 3: List the names of nuclear fusion reactions and indicate the classes of stars in which each reaction is thought to be active. 4: Identify the physical ...
Part 1
... (A) main sequence fitting. (B) main sequence turnoff. (C) pulsating variables. (D) spectroscopic binaries. (E) visual binaries. 18. All stars begin their lives with the same basic composition. What characteristic mainly determines how bright they become and how long they live? (A) location (B) mass ...
... (A) main sequence fitting. (B) main sequence turnoff. (C) pulsating variables. (D) spectroscopic binaries. (E) visual binaries. 18. All stars begin their lives with the same basic composition. What characteristic mainly determines how bright they become and how long they live? (A) location (B) mass ...
Week 9 Concept Summary - UC Berkeley Astronomy w
... cooler, smaller, red stars. Hot stars are easiest to see since they are brightest, but they are far less common in general. On the main sequence, we also find a relation between the intrinsic luminosity and the mass: L ∝ M 4 , and the main sequence lifetime goes as t ∝ M −3 . Knowing the color of a ...
... cooler, smaller, red stars. Hot stars are easiest to see since they are brightest, but they are far less common in general. On the main sequence, we also find a relation between the intrinsic luminosity and the mass: L ∝ M 4 , and the main sequence lifetime goes as t ∝ M −3 . Knowing the color of a ...
CONSTELLATIONS OF THE SOUTHERN SKY VOLANS
... English astronomer John Herschel proposed shortening it to just Volans. Francis Baily adopted this suggestion in his British Association Catalogue of 1845, and it has been known as that ever since. Volans is the 76th constellation in size, occupying an area of 141 square degrees. It is located in th ...
... English astronomer John Herschel proposed shortening it to just Volans. Francis Baily adopted this suggestion in his British Association Catalogue of 1845, and it has been known as that ever since. Volans is the 76th constellation in size, occupying an area of 141 square degrees. It is located in th ...
The Evolution of Stars - hrsbstaff.ednet.ns.ca
... Gravity is the force that keeps us safely planted here on Earth, but it is more that just that. Gravity, or gravitation, is the natural phenomenon by which all objects with mass attract other objects. Without gravity the universe would be a very different place. ...
... Gravity is the force that keeps us safely planted here on Earth, but it is more that just that. Gravity, or gravitation, is the natural phenomenon by which all objects with mass attract other objects. Without gravity the universe would be a very different place. ...
Finding Your Way In The Sky
... • Latin uses word endings where we often use prepositions (Compare English ‘s) • Possessive form different from normal form • Centaurus but Alpha Centauri • Andromeda but Alpha Andromedae • Gemini – Geminorum • Virgo – Virginis • Orion – Orionis • Ursa Major – Ursae Majoris ...
... • Latin uses word endings where we often use prepositions (Compare English ‘s) • Possessive form different from normal form • Centaurus but Alpha Centauri • Andromeda but Alpha Andromedae • Gemini – Geminorum • Virgo – Virginis • Orion – Orionis • Ursa Major – Ursae Majoris ...
Astronomy Quiz 12 “Stars
... B. yellow dwarfs / red supergiant D. red dwarfs / blue supergiant _____3. The actual 3D motion of stars relative to each other in a rotating and swirling galaxy is called __ motion. A. radial B. proper C. real D. transverse _____4. How far away is a star that shows 1” (1 arc second) of parallax moti ...
... B. yellow dwarfs / red supergiant D. red dwarfs / blue supergiant _____3. The actual 3D motion of stars relative to each other in a rotating and swirling galaxy is called __ motion. A. radial B. proper C. real D. transverse _____4. How far away is a star that shows 1” (1 arc second) of parallax moti ...
Chapter 21
... within the next 100,000 years. Even at its relatively remote distance, it normally ranks as the tenth brightest star in the sky. ...
... within the next 100,000 years. Even at its relatively remote distance, it normally ranks as the tenth brightest star in the sky. ...