Surveying the Stars
... The Random Walk towards the Spectral Types… • White Stars, with prominent hydrogen lines. Called them “A stars.” • Blue-white stars, with less prominent H lines, and weak helium lines. Called them “B stars” • Then, no more in this color direction, so skip some letters and… Cream colored stars, with ...
... The Random Walk towards the Spectral Types… • White Stars, with prominent hydrogen lines. Called them “A stars.” • Blue-white stars, with less prominent H lines, and weak helium lines. Called them “B stars” • Then, no more in this color direction, so skip some letters and… Cream colored stars, with ...
29.2 - Stars - s3.amazonaws.com
... • Stars appear to be close to each other because the human eye cannot distinguish the distance a star is from earth • Clusters are stars close to each other due to gravitational attraction ...
... • Stars appear to be close to each other because the human eye cannot distinguish the distance a star is from earth • Clusters are stars close to each other due to gravitational attraction ...
handout
... In the diagrams, The innermost ring extends 8 parsecs (600 yards) from the Sun, far enough to include Vega and Altair of the Summer Triangle. Each line is one parsec (75 yards). The middle ring extends 30 parsecs (2250 yards, 1.25 miles), far enough to include the Big Dipper’s stars. Each line is 5 ...
... In the diagrams, The innermost ring extends 8 parsecs (600 yards) from the Sun, far enough to include Vega and Altair of the Summer Triangle. Each line is one parsec (75 yards). The middle ring extends 30 parsecs (2250 yards, 1.25 miles), far enough to include the Big Dipper’s stars. Each line is 5 ...
ems 6 - LincolnLions.org
... present day Identify and explain the relevant space technologies invented Include pictures when possible Complete on paper provided ...
... present day Identify and explain the relevant space technologies invented Include pictures when possible Complete on paper provided ...
Physics@Brock - Brock University
... Big Bang created hydrogen and some helium, along with a slew of other subatomic particles and electromagnetic radiation, but all the heavier elements were created inside stars. When the early massive stars “died” (their lifetimes were very short due to their enormous mass) the resulting explosions ( ...
... Big Bang created hydrogen and some helium, along with a slew of other subatomic particles and electromagnetic radiation, but all the heavier elements were created inside stars. When the early massive stars “died” (their lifetimes were very short due to their enormous mass) the resulting explosions ( ...
Part 1- The Basics
... Binary Stars • Binary stars are two stars which are held in orbit around each other by their mutual gravitational attraction, are surprisingly common • Visual binaries: those that can be resolved into two distinct star images by a telescope • Each of the two stars in a binary system moves in an ell ...
... Binary Stars • Binary stars are two stars which are held in orbit around each other by their mutual gravitational attraction, are surprisingly common • Visual binaries: those that can be resolved into two distinct star images by a telescope • Each of the two stars in a binary system moves in an ell ...
Test 2, Nov. 17, 2015 - Physics@Brock
... 15. Star S radiates most energy at 400 nanometers and star U radiates most energy at 700 nanometers. From this we can conclude that (a) star S has hotter surface than star U. (b) star S has colder surface than star U. (c) both stars have the same surface temperature. (d) [No comparison of their surf ...
... 15. Star S radiates most energy at 400 nanometers and star U radiates most energy at 700 nanometers. From this we can conclude that (a) star S has hotter surface than star U. (b) star S has colder surface than star U. (c) both stars have the same surface temperature. (d) [No comparison of their surf ...
DR 19.2 - Cobb Learning
... ______ 12. The H-R diagram shows the relationship of a star’s temperature to its a. brightness. c. size. b. color. d. age. ______ 13. On what part of the H-R diagram would you find the majority of the main-sequence stars? a. top half c. middle b. bottom half d. far corners 14. According to the H-R d ...
... ______ 12. The H-R diagram shows the relationship of a star’s temperature to its a. brightness. c. size. b. color. d. age. ______ 13. On what part of the H-R diagram would you find the majority of the main-sequence stars? a. top half c. middle b. bottom half d. far corners 14. According to the H-R d ...
Charting The Universe - University of Windsor
... • We now realise that the Earth is spinning on its axis. • Note the position of the celestial poles and equator, respect to that of the Earth. • As stars are all deemed to be the same distance from the Earth – we only need determine their angular separations! ...
... • We now realise that the Earth is spinning on its axis. • Note the position of the celestial poles and equator, respect to that of the Earth. • As stars are all deemed to be the same distance from the Earth – we only need determine their angular separations! ...
Volcanoes and Igneous Activity Earth
... • Only 10 percent of the known galaxies have irregular shapes and are classified as irregular galaxies. • In addition to shape and size, one of the major differences among different types of galaxies is the age of their stars. Irregular galaxies contain young stars. ...
... • Only 10 percent of the known galaxies have irregular shapes and are classified as irregular galaxies. • In addition to shape and size, one of the major differences among different types of galaxies is the age of their stars. Irregular galaxies contain young stars. ...
1201 Discussion Notes
... Remember, the orbits in an elliptical galaxy are fairly random, so even if we focus on one area there will be a range of Doppler shifted lines from the stars that are moving towards and away from us at different speeds. These all combine (they sort of add together) to make a broadened line. The broa ...
... Remember, the orbits in an elliptical galaxy are fairly random, so even if we focus on one area there will be a range of Doppler shifted lines from the stars that are moving towards and away from us at different speeds. These all combine (they sort of add together) to make a broadened line. The broa ...
Lecture11
... • Viewing a galaxy edge-on, you see a dark lane where starlight is being absorbed by dust. ...
... • Viewing a galaxy edge-on, you see a dark lane where starlight is being absorbed by dust. ...
TYPES OF STARS
... When astronomers look through their telescopes, they see billions of stars. How do they make sense of all these stars? The goal of this problem set is for you to understand that astronomers classify stars on the basis of two different criteria: (1) the intensity of one of the H absorption lines (cal ...
... When astronomers look through their telescopes, they see billions of stars. How do they make sense of all these stars? The goal of this problem set is for you to understand that astronomers classify stars on the basis of two different criteria: (1) the intensity of one of the H absorption lines (cal ...
Lifecycle of a Star
... Super dense core of a star left over after a supernova. Only 5 to 15 MILES in diameter, but have a mass 1.5 – 2 times that of the Sun. ...
... Super dense core of a star left over after a supernova. Only 5 to 15 MILES in diameter, but have a mass 1.5 – 2 times that of the Sun. ...
LIGO Star Chart
... shape. The best observations can be made from early September through December. ...
... shape. The best observations can be made from early September through December. ...
1 - Physics
... 6. Which takes longer to form, stars the mass of the sun or stars ten times the mass of the sun? • A) ten times the mass of the sun • B) both take the same length of time to form • C) mass of the sun • D) the formation rates will depend on the rotation of the gas clouds 7. Of the following, which i ...
... 6. Which takes longer to form, stars the mass of the sun or stars ten times the mass of the sun? • A) ten times the mass of the sun • B) both take the same length of time to form • C) mass of the sun • D) the formation rates will depend on the rotation of the gas clouds 7. Of the following, which i ...
pptx
... All have spectra showing low or very low heavy element content The oldest clusters in our Galaxy (and some of the oldest objects) ...
... All have spectra showing low or very low heavy element content The oldest clusters in our Galaxy (and some of the oldest objects) ...
inaugural091112
... • Process is rapid: clouds consumed within few hundred million years • Yet we detect plenty of clouds: clouds exist • Some Unknown Unknown (UU) holds up the clouds ...
... • Process is rapid: clouds consumed within few hundred million years • Yet we detect plenty of clouds: clouds exist • Some Unknown Unknown (UU) holds up the clouds ...
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 ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.