'Measuring stars' diaporamas de présentation

3 - Stellar Spectra

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3 - Stellar Spectra

649 views • 39 slides

Introducing myself

Variations in sky luminance measurements Wim Schmidt Platform Lichthinder Sotto le Stelle Osnabruck Oktober 2011. Introducing myself. Ten years chairman of the Dutch L ight P ollution Group Occupation: light pollution adviser: delivering data to governments: pictures, numbers and maps.

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How Far?

How Far?. Measuring Distance in the Universe. How?. Gian Domenico Cassini, in 1672, used a technique called parallax to measure the distance to Mars. . Cassini figured it out!. The Sun is about 93 million miles from

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Chapter 29 Notes

Chapter 29 Notes. Stars. The Sun: Solar Atmosphere. Photoshere : visible surface, 5800 K Chromosphere : 30,000 K Corona: 1 to 2 million K, solar wind extends from the corona. Solar Interior. Core: nuclear fusion Radiative zone: energy moves outward from the core

292 views • 16 slides