'Hertzsprung' presentation slideshows

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A. B. C. D. E. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400. 500. 500. 500. 500. 500. The distance light travels in a year. . What is a light year?. The color of the coolest stars. What is red?.

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Chapter 17 Measuring the Stars

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Stars

Stars. What is a star?. 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. Characteristics of Stars.

348 views • 19 slides

Chapter 11: Characterizing Stars

Chapter 11: Characterizing Stars. WHAT DO YOU THINK?. How near is the closest star other than the Sun? Is the Sun brighter than other stars, or just closer? What colors are stars? Are brighter stars hotter? What sizes are stars? Are most stars isolated from other stars, as the Sun is?.

425 views • 19 slides

Stars

Stars What is a star? 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 Characteristics of Stars DISTANCE

727 views • 17 slides

Stars

Stars. What is a star?. 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. Characteristics of Stars.

283 views • 17 slides

Stars

Stars. What is a STAR ?. 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. A. Characteristics of Stars.

301 views • 17 slides

Stars: Other Suns

Stars: Other Suns. The Solar-Stellar Connection. Physical Properties. Luminosity Mass Size (diameter/radius) Surface temperature Chemical composition. Distances. Heliocentric stellar parallax Inverse relation : Smaller parallax, greater the distance

230 views • 12 slides

Brightnesses , sizes and motions of stars

Brightnesses , sizes and motions of stars . Recap. Project : due Friday 11/21 Campus observatory Information from brightnesses of stars Brightness depends on: distance, temperature and size If you know two of these, brightness can be used to give you the third

214 views • 12 slides

The H R Diagram

The H R Diagram. Hertzsprung - Russel. Some stars are very big, others are very small. Some are very hot and some are much cooler. Some are very bright and some are much dimmer. A chart which helps us understand what different types of star there are and how they evolve.

203 views • 8 slides