Some facts and concepts to have at your fingertips.
... maximum intensity is related to the temperature of the material. Example: cannon ball at 3000 deg K. Peak intensity is in the near-infrared. • A low density gas excited to emit gives an emission line spectrum. Example: neon light. • Cool gas in between the observer and a source of a continuous spect ...
... maximum intensity is related to the temperature of the material. Example: cannon ball at 3000 deg K. Peak intensity is in the near-infrared. • A low density gas excited to emit gives an emission line spectrum. Example: neon light. • Cool gas in between the observer and a source of a continuous spect ...
Skills Worksheet
... astronomers can calculate the temperature of a star by measuring its color. The color of a star is determined by its chemical composition. Each element gives off a specific light pattern that varies with temperature. To calculate star temperatures, astronomers use a spectrophotometer—an instrument t ...
... astronomers can calculate the temperature of a star by measuring its color. The color of a star is determined by its chemical composition. Each element gives off a specific light pattern that varies with temperature. To calculate star temperatures, astronomers use a spectrophotometer—an instrument t ...
Branches of Earth Science
... Light Year- Astronomers use light years to measure the distances ______________ stars o A light year is the distance that light ______________ in one year 9,460,730,472,580.8 km 5,878,630,000,000 miles Parallax- the apparent change in the ______________ of a star in the sky. o The change is due ...
... Light Year- Astronomers use light years to measure the distances ______________ stars o A light year is the distance that light ______________ in one year 9,460,730,472,580.8 km 5,878,630,000,000 miles Parallax- the apparent change in the ______________ of a star in the sky. o The change is due ...
Review-Sheet-sun-solar-system-galaxies-and-cosmology-fall
... 9. Explain the sun’s life cycle, and what will happen to it about 5 billion years down the road. 10. Explain the life cycle of a star that is 8-20 times the size of our sun. 11. Explain the life cycle of a star that is 20 times the size of our sun. ...
... 9. Explain the sun’s life cycle, and what will happen to it about 5 billion years down the road. 10. Explain the life cycle of a star that is 8-20 times the size of our sun. 11. Explain the life cycle of a star that is 20 times the size of our sun. ...
Star Life Cycle - GSHS Mrs. Francomb
... masses, stars run out of their main fuel - hydrogen. • Without the outward pressure generated from these reactions to counteract the force of gravity, the outer layers of the star begin to collapse inward toward the core. • Just as during formation, when the material contracts, the temperature and p ...
... masses, stars run out of their main fuel - hydrogen. • Without the outward pressure generated from these reactions to counteract the force of gravity, the outer layers of the star begin to collapse inward toward the core. • Just as during formation, when the material contracts, the temperature and p ...
Stars - Weebly
... • The objects that heat and light the planets in a system • A star is a ball of plasma held together by its own gravity – Nuclear reactions occur in stars (H He) – Energy from the nuclear reactions is released as electromagnetic radiation ...
... • The objects that heat and light the planets in a system • A star is a ball of plasma held together by its own gravity – Nuclear reactions occur in stars (H He) – Energy from the nuclear reactions is released as electromagnetic radiation ...
Ordinary Stars - Edgewood High School
... of 10,000 K and another a temperature of 5,000 K, how much more energy does the hotter star put out? ...
... of 10,000 K and another a temperature of 5,000 K, how much more energy does the hotter star put out? ...
Teacher Sheet 1. What variables does the HR Diagram compare
... 12. Why do giants differ from stars in the Main Sequence? Although they are cool [red], they are very luminous, and therefore bright. In the Main Sequence, stars that are cool are not as luminous. 13. How do white dwarf stars differ from stars in the Main Sequence? White dwarf stars are very hot [bl ...
... 12. Why do giants differ from stars in the Main Sequence? Although they are cool [red], they are very luminous, and therefore bright. In the Main Sequence, stars that are cool are not as luminous. 13. How do white dwarf stars differ from stars in the Main Sequence? White dwarf stars are very hot [bl ...
Document
... Please indicate the best answer to the following question on the answer sheet provided. 1. Of all the stars that are currently on the main sequence, which spectral type would be least abundant? a. A, b. B, c. K, d. M 2. What mechanism is responsible for the twisting of the Sun's magnetic filed lines ...
... Please indicate the best answer to the following question on the answer sheet provided. 1. Of all the stars that are currently on the main sequence, which spectral type would be least abundant? a. A, b. B, c. K, d. M 2. What mechanism is responsible for the twisting of the Sun's magnetic filed lines ...
Old Final
... Draw and label an H-R diagram. Be sure to label the axes (indicate where larger and smaller values are), the main sequence, the giants, super giants, white dwarfs and the location of the Sun. ...
... Draw and label an H-R diagram. Be sure to label the axes (indicate where larger and smaller values are), the main sequence, the giants, super giants, white dwarfs and the location of the Sun. ...
The HR Diagram Interpreted: Properties of Stars
... The HR Diagram Interpreted: Properties of Stars ...
... The HR Diagram Interpreted: Properties of Stars ...
Document
... 3. How can we tell that red giant stars are very large stars, from just their position in the HR diagram? ...
... 3. How can we tell that red giant stars are very large stars, from just their position in the HR diagram? ...
Astronomy 2 Relativity and Gravitation
... Vega is an AOV star, of effective temperature T = 9520 K, and absolute bolometric magnitude Mbol = 0.3. Given that the Sun has effective temperature 5800 K and Mbol = 4.72, estimate the radius of Vega in units of the solar radius, stating ...
... Vega is an AOV star, of effective temperature T = 9520 K, and absolute bolometric magnitude Mbol = 0.3. Given that the Sun has effective temperature 5800 K and Mbol = 4.72, estimate the radius of Vega in units of the solar radius, stating ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.